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a

amorphous

A

– ampere
– mass number [mass number = atomic number + neutron number (A = Z + N)]

Å

angstrom [convert to SI: meter (m)]

A.B.

Bachelor of Arts (also B.A.)

a.m.

ante meridiem (before noon)

A.M.

Master of Arts (also M.A.)

A-E

architect-engineer (see A/E)

A-h

ampere-hour

A-O

acoustic-optic

a-Si

amorphous silicon

A-T

ampere-turns

A/C

– air conditioner/conditioning (also AC)
– aircraft

A/D

analog-to-digital

A/D/O

analog/digital/optical

A/E

architect/engineer (see A-E)

A/M

amperes per meter

A/WOMS

Account/Work Order Master

A&E

architect and engineer

A2LA

American Association for Laboratory Accreditation

A2R2

Argonne Advanced Research Reactor

aa

arrested crack length

aA

abampere [convert to SI: ampere (A)]

AA

– affirmative action
– Aluminum Association
– Amarillo Area Office (DOE)
– atomic absorption
– atomic absorption spectroscopy
– authorization agreement

AA/EEO

Affirmative Action/Equal Employment Opportunity

AAA

American Automobile Association

AAAS

American Association for the Advancement of Science

AABB

American Association of Blood Banks

AAC

– Administrative Advisory Council (ORNL)
– Alaskan Air Command

AACC

American Association for Clinical Chemistry

AACE

– American Association of Cost Engineers
– Athens Automation and Control Experiment

AACETS

Athens Automation and Control Experiment Test System

AACG

American Association for Crystal Growth

AACI

Association of American Cancer Institutes

AACR

American Association for Cancer Research

AACTSO

Afro-Academic, Cultural, Technological and Scientific Olympics (NAACP)

AAF

antialiasing filter

AAFES

Army and Air Force Exchange Service

AAG

Association of American Geographers

AAHP

– air-to-air heat pump
– American Academy of Health Physics

AAIs

abbreviations, acronyms, and initialisms

AALAS

American Association of Laboratory Animal Science

AAMRL

Armstrong Aerospace Medical Research Laboratory

AAO

Albuquerque Acquisition Office

AAOM

American Academy of Occupational Medicine

AAP

– Affirmative Action Program
– Association of American Publishers

AAPA

American Academy of Physician's Assistants

AAPP

Academic Assessment Placement Program

AAQS

Ambient Air Quality Standards

AAS

– Adopt-A-School (program)
– atomic absorption spectrometry/spectrometer/spectroscopy

AAT

Advanced Apprentice Training

AATB

American Association of Tissue Banks

AAU

accelerated aging unit

AAV

Assault Amphibious Vehicle

ABA

– American Bar Association
– Architectural Barriers Act of 1968

ABB/CE

Asea Brown Boveri/Combustion Engineering

ABB Atom

Asea Brown Boveri Atom

ABC

aluminum beverage can

ABD

Authorization Basis Document

ABET

Accrediting Board for Technology

ABFTM

Application-By-Forms

ABHP

American Board of Health Physics

ABIH

American Board of Industrial Hygienists

ABL

atmospheric boundary layer

ABM

antiballistic missile

ABMA

American Boiler Manufacturers Association

ABMDATC

Army Ballistic Missile Defense Advanced Technology Center

ABO3

perovskite

ABR

advanced breeder reactor

ABRV

advanced ballistic reentry vehicle

abs

absolute

ABS

– acrylonitrile butadiene-styrene
– Animal Behavior Society

ABW

Air Base Wing

ABWA

American Business Women's Association

ABWR

advanced boiling water reactor

ac

alternating current

Ac

actinium (element, Z = 89)

AC

– acceptance criteria
– air conditioner/conditioning (also A/C)
– annual cost
– auxiliary control

AC&W

Aircraft Control and Warning (USAF)

ACA

American Compensation Association

ACAL

administrative control action level

ACAMS

automatic continuous air monitoring system

ACARS

Access Control and Release System

ACC

aquifer contamination control

ACCA

– Air Conditioning Contractors of America
– American Cave Conservation Association

ACCOD

Anderson County Center for Occupational Development

ACCR

Aquifer Contamination Control Report

ACD

– advanced conceptual design
– Analytical Chemistry Division (ORNL)

ACDA

Arms Control and Disarmament Agency

AcDm

Activities Description Memorandum

ACE

– annual cooling energy
– Association of Cost Engineers

ACEC

American Consulting Engineers Council

ACEEE

American Council for an Energy-Efficient Economy

ACES

– Administrative Computing Environment Strategy
– Annual Cycle Energy System

acfm

actual cubic feet per minute [convert to SI: cubic meters per second (m3/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

ACGIH

American Conference of Governmental Industrial Hygienists

ACH

air changes per hour

ACHP

Advisory Council on Historic Preservation

ACHRE

Advisory Committee on Human Radiation Experiments

ACID

Acidification Chemistry Information Data Base (BNL)

ACL

– administrative control limit
– Advanced Computing Laboratory (LANL)
– alternate concentration level/limit
– annual cooling load

ACM

– air combat maneuver
– alternate crisis manager
– asbestos-containing material
– Associated Colleges of the Mideast
– Association for Computing Machinery
– automated command media
– avoidable cost manager (ORNL)

ACMW

Associated Colleges of the Midwest

ACN

– acetonitrile
– activity change notice
– advance change notice

ACNFS

Advisory Committee on Nuclear Facility Safety/Ahearne Committee

ACO

– Administrative Consent Order
– advance change order

ACP

– Advanced Controls Program (ORNL)
– American College of Physicians
– ancillary control process
– arithmetic control processor

ACPERS

Army Civilian Personnel System

ACR

– Anomalous Condition Report
– area control room

ACRD

– Atmospheric and Climate Research Division
– automatic control rod drive

ACRDS

automatic control rod drive system

acre

[do not abbreviate this word; convert to SI: square meter (m2)]

acre-ft

acre-foot [convert to SI: cubic meter (m3)]

ACRF

advanced controls research facility

ACRS

– Advisory Committee on Reactor Safeguards
– Approved Comprehensive Records Schedule

ACS

– Administrative Control for Safety
– advanced control system
– American Ceramic Society
– American Chemical Society
– American College of Surveyors

ACSA

Association of the Collegiate School of Architecture

ACSC

Administrative Computing Steering Committee (ORNL)

ACSL

Advanced Continuous Simulation Language

ACSM

American Congress of Surveying and Mapping

ACSR

aluminum cable steel reinforced

ACT

Air Combat Tactics

ACTO

– Advanced Controls Technology Operation (ORNL)
– Advanced Controls Test Operation (ORNL)

ACTP

Advanced Control Technology Program (ORNL)

ACU

– air conditioning unit
– Assault Craft Unit

ACUC

Animal Care and Use Committee (ORNL)

ACWP

actual cost of work performed

ACWR

aircraft wash rack

ACWS

Anderson County Wildlife Sanctuary

ad

adjoint (math)

AD

– Anno Domini
– associate director

ADA

– adenosine deaminase
– American Dietetic Association
– Americans with Disabilities Act of 1990
– average daily attendance

ADANS

– Airlift Deployment Analysis System (USAF)
– AMC Deployment Analysis System

ADAPT

Advanced Design and Production Technologies

ADC

– administrative dose control
– Aerospace Defense Command
– analog-to-digital converter
– Association of Diving Contractors
– authorized derivative classifier (obsolete, see DC)

ADCIS

Association for Development of Computer Based Instructional Systems

ADCOH

Appalachian Ultradeep Core Hole

ADDNET

Acid Deposition Data Network (EPA)

ADEA

Age Discrimination in Employment Act

ADEC

Advanced Diagnostics Engineering Center (ORNL)

ADERDC

Advanced Diagnostic Engineering Research and Development Center (ORNL)

ADF

U.S. Army Demonstration Facility (see EPDF)

ADI

– acceptable daily intake
– Air Defense Initiative
– AudioDigital Imaging, Inc.

ADIF

all-dielectric interference filter

ADINAT

Automatic Dynamic Incremental Nonlinear Analysesof Temperatures

ADL

Automated Data Library

ADM

Action Description Memorandum

ADP

– Advanced Development Program
– Advanced Diverter Program
– ammonium dihydrogen phosphate
– automated data processing

ADPA

American Defense Preparedness Association

ADPE

automatic data processing equipment

ADR

alternate dispute resolution

ADRP

Audit-Directed Retrofit Program

ADS

– activity data sheet
– Air Defense Squadron
– automatic depressurization system
– autonomous docking system

AdServ

Administrative Services

ADT

average daily traffic

ADU

ammonium diuranate

ADVAB

advanced absorber control rod

AE

– acoustic emission
– alternative evaluation

AEA

– American Economic Association
– American Evaluation Association
– Atomic Energy Act of 1954
– Atomic Energy Authority (U.K.)

AEC

– air emissions control
– U.S. Atomic Energy Commission (now DOE)

AECB

Atomic Energy Control Board (Canada)

AECL

Atomic Energy of Canada Ltd.

AECM

Atomic Energy Commission Manual (replaced by Department of Energy Manual)

AECPR

AEC procurement regulation

AED

aerodynamic-equivalent diameter

AEDC

Arnold Engineering Development Center

AEDE

annual effective dose equivalent

AEE

adverse environmental effect

AEH

analog electrohydraulic

AEHA

Army Environmental Hygiene Agency

AEIC

Association of Edison Illuminating Companies

AEL

– Appalachian Educational Laboratory
– Aquatic Ecology Laboratory (ESD)

AEM

analytical electron microscopy

AEO

Atomic Energy Outlook 1990

AEOC

Alternative Emergency Operations Center

AEOD

Office for Analysis and Evaluation of Operational Data (NRC)

AEP

American Electric Power Energy Services, Inc.

AEP-UEA

Alabama Enrichment Plant, Uranium Enrichment Associates

AEPG

– Auxiliary Emergency Portable Generator (HFIR)
– auxiliary emergency power generator

AEPIC

Architectural Engineering Performance Information Center

AER

– Advance Engineering Release
– annual environmental report
– auxiliary equipment room

AERC

Association of Ecosystem Research Centers

AERE

Atomic Energy Research Establishment (U.K.)

AERO

Association for Excellence in Reactor Operations

AES

– annual energy savings
– atomic emission spectroscopy
– Auger electron spectroscopy

AESF

annual energy savings factor

AESG

Analytical Environmental Support Group (K-25)

AET

actual evapotranspiration

AETF

Advanced Equipment Test Facility

AF

– adjustment factor
– Award Fee

af

audio frequency

AFAA

Air Force Audit Agency

AFAL

Air Force Armament Laboratory

AFAP

artillery-fired atomic projectile

AFAS

Advanced Field Artillery System (U.S. Army)

AFB

Air Force Base

AFBC

atmospheric fluidized-bed combustion

AFBMA

Anti-Friction Bearing Manufacturers Association

AFC

– alkaline fuel cell
– automatic frequency control

AFCC

U.S. Air Force Communications Command

AFCEE

Air Force Center for Environmental Excellence

AFCOMS

Air Force Commissary

AFCS

Air Force Communication Service

AFDC

allowance for funds during construction

AFDCS

Active Facilities Data Collection System

AFDM

– ash-free dry mass
– Auxiliary Floating Drydock Medium

AFDP

Award Fee Determination Plan

AFEAS

Alternative Fluorocarbons Environmental Acceptability Study (industrial consortium of CFC producers)

AFENAC

Air Force Environmental Noise Assessment Center

AFESA

Army Facilities Engineering Support Agency

AFESC

U.S. Air Force Engineering and Service Center

AFETR

Air Force Eastern Test Range

AFFF

aqueous-film-forming foam

AFFTC

Air Force Flight Test Center

AFGL

Air Force Geophysical Laboratory

AFIRM

Air Force Installation Restoration Management Committee

AFL-CIO

American Federation of Labor and Congress of Industrial Organizations

AFLC

U.S. Air Force Logistics Command

AFM

Air Force Manual

AFM

atomic force microscopy

AFML

Air Force Materials Laboratory

AFMTC

Air Force Missile Test Center

AFNEC

Air Force Nuclear Engineering Center (Wright-Patterson Air Force Base)

AFO

Alcohol Fuels Office (DOE)

AFOSH

Air Force Office of Safety and Health

AFOSI

Air Force Office of Special Investigations

AFP

– Alternative Feedstock Program
– Approved Funding Program

AFR

– Air Force Regulation
– away from reactor

AFRCE

Air Force Regional Civil Engineer

AFRES

U.S. Air Force Reserve

AFRP

Advanced Fuel Recycle Program

AFRRI

Armed Forces Radiobiological Research Institute

AFS

– Air Force Station
– American Fisheries Society

AFSC

– Air Force Systems Command
– Armed Forces Staff College

AFT

aggressive failure test

AFTAC

Air Force Technical Applications Center

AFTOX

U.S. Air Force Toxic Chemical Dispersion Model

AFUDC

allowance for funds used during construction

AFUP

Alternative Fuels Utilization Program (DOE)

AFV

alternative fuel vehicle

AFW

auxiliary feedwater

AFWAL

Air Force Wright Aeronautical Laboratories

AFWIS

Air Force World Wide Military Command and Control System Information System

AFWL

Air Force Weapons Laboratory

AFWS

auxiliary feedwater system

Ag

silver (element, Z = 47)

AG

adjutant general

AGA

– acoustic gas analyzer
– American Gas Association

AGC

– advanced gas centrifuge
– automatic gain control

AGCA

Associated General Contractors of America

AGCR

advanced gas-cooled reactor

AGE

aerospace ground equipment

AGHE

absorber-generator heat exchanger

AGI

– adjusted gross income
– American Geological Institute

AGL

above ground level

AGMA

American Gear Manufacturers Association

AGMEF

Ana G. Mendez Educational Foundation

AGNS

Allied General Nuclear Services (Barnwell, South Carolina)

AGS

– Alternating Gradient Synchrotron
– American Glovebox Society

AGU

American Geophysical Union

AGV

automatic guided vehicle

Ah

ampere-hour (preferred over "amp-hr") [convert to SI: coulomb (C)]

AHAM

Association of Home Appliance Manufacturers

AHC

advanced handling characteristic

AHE

annual heating energy

AHERA

Asbestos Hazard Emergency Response Act

AHF

anhydrous hydrogen fluoride

AHL

annual heating load

AHMRTS

Automated Hazardous Materials Retrieval and Tracking System

AHP

– absorption heat pump
– analytic hierarchy process

AHPS

auxiliary heater power supply

AHPT

absorption heat pump test

AHS

Assured Health Systems

AHU

air handling unit

AHX

accumulator heat exchanger

ai

Airy function (math)

AI

Administration Information (bulletins)

AI

– Adobe Illustrator
– air-to-air intercept
– artificial intelligence
– Atomic International
– Soil Absorption Isotherm (AI) Test

AIA

American Institute of Architects

AIAA

American Institute of Aeronautics and Astronautics

AIBS

American Institute of Biological Sciences

AIC

– acceptable daily level for chronic intake
– advanced industrial concept
– alternate information center
– American Institute of Chemists

AIChE

American Institute of Chemical Engineers

AICPA

American Institute of Certified Public Accountants

AICS

Automated Inventory Control System

AICUZ

Air Installation Compatible Use Zone

AID

U.S. Agency for International Development

AIDS

Acquired Immune Deficiency Syndrome

AIF

Atomic Industrial Forum

AIG

American International Group

AIH

American Institute of Hydrology

AIHA

American Industrial Hygiene Association

AIHC

American Industrial Health Council

AIIE

American Institute of Industrial Engineers, Inc.

AILT

American Institute for Life Technologies

AIM

– accelerator improvement and modification
– Acquisition Information Management
– advanced industrial material
– Artificial Intelligence Manipulator

AIMD

Aircraft Intermediate Maintenance Division

AIME

American Institute of Mining, Metallurgical, and Petroleum Engineers

AIMS

Advanced Integrated Maintenance System

AIP

– Accelerator Improvements Project
– agreement in principle

AIPC

All Indian Pueblo Council

AIPE

American Institute of Plant Engineers

AIR

AiResearch Manufacturing Company of California

air hp

air horsepower

AIRD

Acoustic Instrumentation Research and Development (of SDT)

AIRFERRON

Aircraft Ferry Squadron

AIRHAS

Airborne Hazardous Substances (program)

AIRS

Advanced Instrumentation for Reflood Studies

AiS

Adventures in Supercomputing [DOE program (state of Tennessee and ORNL)]

AIS

– Absentee Inquiry System
– Advanced Isotope Separation
– Argonne, Illinois, Site
– Automated Information System

AISB

Association of Imaging Service Bureaus

AISC

– American Institute of Steel Construction
– (U.S.) Army Information System Command

AISI

American Iron and Steel Institute

AISN

Adventures in Supercomputing Network

AISP

Association of Information Systems Professionals

AIT

– Accident Investigation Team (DOE)
– action initiation time

AK

Alaska (use only with ZIP code addresses)

Al

aluminum (element, Z = 13)

AL

– Alabama (use only with ZIP code addresses)
– Albuquerque Operations Office (DOE)
– sound level on the A-weighted scale expressed in decibels

Al2O3

– alumina
– aluminum oxide

Al2S3

aluminum sulfide

ALA

American Lung Association

Ala.

Alabama (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

ALARA

as low as reasonably achievable

Alaska

(not an abbreviation; spell out this state name unless it is used with ZIP code addresses; use after city names in text, references, lists, tables, footnotes, bibliographies, and indexes)

ALBIOS

Aluminum Biogeochemistry in Soils

ALBURT

Albuquerque Budget Reform Task

ALC

Air Logistics Center (USAF)

ALCHEMI

axial electron channeling microanalysis

AlCl3

aluminum chloride

Alcoa

Aluminum Company of America

ALD

Advanced Leadership Development (ESTD)

ALERT

Associated Laboratories for Excellence in Radiation Technology

ALI

annual limits on intake

ALLLWSAP

Active Liquid Low-Level Waste Assurance Program

ALIPS

Automated Laser-Induced Phosphorimeter System

ALm

maximum A-weighted sound level

ALMA

Analytical Laboratory Managers Association

ALMR

advanced liquid-metal (-cooled) reactor

ALO

Albuquerque Operations Office (DOE)

ALP

Ammunitions Logistics Program (RPSD)

ALR

Advanced Logic Research (a company name)

ALS

– Adirondack Lake Survey (ALSC)
– Advanced Launch System
– Advanced Light Source

ALSC

Adirondack Lake Survey Corporation

ALSS

Aluminum in Streams Study (EPRI project)

alt

altitude

ALT-II

Advanced Limiter Test II

ALU

arithmetic logic unit

ALWR

advanced light-water reactor

Am

americium (element, Z = 95)

AM

– air mass (solar)
– amplitude modulation (electronics)
– annulus mixing

AMA

– American Management Association
– American Medical Association

AMAD

activity median aerodynamic diameter

AMC

– Air Mobility Command (Air Force)
– American Mining Congress
– Army Materiel Command

AMCA

Air Movement and Control Association

AMCC

Administrative Management Coordinating Council

AMCCOM

Armament, Munitions and Chemical Command (U.S. Army)

AMCO

Aerojet Manufacturing Company (Fullerton, California)

AMCR

Army Materiel Command Regulation

AMDL

Advanced Machine Development Laboratory

AMERD

Assistant Manager for Energy Research and Development

AMERWM

Assistant Manager for Environmental Restoration and Waste Management

AMESQ

Assistant Manager for Environment, Safety, and Quality

AMEX

American Stock Exchange

AMFIP

Acoustic Measurements Facilities Improvement Program

AMFIP-I

Acoustic Measurements Facilities Improvement Program, Phase I

AMFIP-II

Acoustic Measurements Facilities Improvement Program, Phase II

AML

– abandoned mine land
– acute myelogenous leukemia

AMP

– aminomethylpyridine
– Army Materiel Plan

amp-hr

ampere-hour ("Ah" is preferred) [convert to SI: coulomb (C)]

AMP MOD

Army Materiel Plan Modernization (project)

AMS

– accident monitoring system
– advanced manipulator system
– aerial measurement system
– air monitoring station
– American Mathematical Society
– American Meteorological Society
– Avionics Maintenance Squadron

AMSA

Area Material and Support Activity

AMSE

American Museum of Science and Energy (Oak Ridge)

AMSEQ

Assistant Manager of Safety, Environment, and Quality

AMSL

– Analytical Mass Spectrometry Laboratory
– above mean sea level (see MSL and NGVD)

AMTEX

American Textile Manufacturers Association

amu

atomic mass unit (preferred over "AMU")

AMU

– Aircraft Maintenance Unit
– atomic mass unit ("amu" is preferred)

AN

anthracene

ANAD

Anniston Army Depot

AnaLIS

Analytical Laboratory Information System

ANC

acid-neutralizing capability/capacity

AND gate

"AND" is not an abbreviation (see OR gate)

ANDF

Application-Neutral Data Format (computer technology)

ANET

American Network for Environment and Technology

ANFLOW

Anaerobic Packed-Bed Upflow Bioreactor

ANG

Air National Guard

ANGB

Air National Guard Base

ANGSC

Air National Guard Support Center

ANL

Argonne National Laboratory (Argonne, Illinois)

ANL-E

Argonne National Laboratory-East (Chicago)

ANL-W

Argonne National Laboratory-West [as of Feb. 1, 2005, INEEL and ANL-W became the Idaho National Laboratory (INL)]

ANMC

American National Metric Council

ANN

artificial neural network

ANO

Arkansas Nuclear One (AP&LC)

ANOI

Advance Notice of Intent

ANOVA

analysis of variance test

ANP

Aircraft Nuclear Propulsion (Project)

ANPEO

assistant nuclear plant equipment operator

ANPRM

advanced notice of proposed rulemaking

ANRL

Arctic Naval Research Laboratory

ANRT

Advanced Nonproliferation Resistance Technology

ANS

– Advanced Neutron Source (formerly CNR)
– American Nuclear Society

ANSDS

automated noise surveillance and diagnostic system

ANSI

American National Standards Institute, Inc.

ANSI/ANS

American National Standards Institute/American Nuclear Society

ANSI/ASME

American National Standards Institute/American Society of Mechanical Engineers

ANSim

neural network simulation program

ANSR

Advanced Neutron Source reactor

antilog

antilogarithm

ANWR

– Alaska National Wildlife Refuge
– Arctic National Wildlife Refuge

ao

initial slot length

AO

– administrative order
– rock salt

AOA

airborne optical adjunct

AOC

area of contamination (RCRA)

AODC

acridine orange direct count

AOHP

add-on heat pump

AOI

– abnormal operating instruction
– avoid oral instructions

AOMA

American Occupational Medical Association

AOO

anticipated operational occurrence

AOP

– add-on plant
– advanced oxidation process
– Annual Operating Plan

AOSC

assistant on-scene commander

AOSTD

associate off-site technical director

AOT

auxiliary operator's terminal

AP

– administrative procedure
– Alaska Power Adminstration
– approach-to-power (procedure)
– array processor

AP&LC

Arkansas Power and Light Company

APA

– Adirondack Park Agency
– alkaline phosphatase activity
– Administrative Procedure Act

APB

antiphase boundary

APC

– Accident Prevention Council
– air pollution control

APCA

– Air Pollution Control Association
– Association of Air Pollution Control Administration

APCD

air pollution control district

APD

avalanche photodetector

APDMS

axial power distribution monitoring system

APDU

Association of Public Data Users

APEC

Automated Procedures for Engineering Consultants, Inc.

APF

annual performance factor

APFIM

atom-probe field-ion microscopy

APG

Aberdeen Proving Ground

APHA

American Public Health Association

API

– Advanced Photonics Initiative (ORNL)
– American Paper Institute
– American Petroleum Institute
– application programming interface

APICS

American Production and Inventory Control Society

APIS

acoustic peak identification system

APMP

Acid Precipitation Mitigation Program (NAPAP)

APNEA

Active Passive Neutron Examination and Assay (P&E)

APO

– Air Post Office
– Analytical Project Office
– Army Post Office
– auxiliary plant operator

APP

– Application Portability Profile (NIST)
– automated procedure prompting

APPA

American Public Power Association

APPDP

AVLIS Product Purification Demonstration Project

appm

atomic parts per million

APPR

Army Package Power Reactor

APRAS

Automated Procedures Requirements Accountability System

APRB

Assessments Prioritization and Risk Board

APRF

Army Pulse Radiation Facility

APRFR

Army Pulse Radiation Facility Reactor

APRM

average power range monitor (see LPRM)

APS

– Aerial Port Squadron
– American Physical Society

APSC

Advanced Processing Science Center

APSD

autopower spectral density

APSS

assistant plant shift superintendent

APT

Advanced Publishing Technology (ORNL)

APTC

Advanced Propulsion Technology Center

APTD

Advanced Publishing Technology Department

APWR

advanced pressurized-water reactor

APZ

accident potential zone

AQA

American Quaternary Association

AQCC

Air Quality Control Center

AQCR

Air Quality Control Region

AQF

American Quality Foundation

AQL

acceptable quality level

AQM

Applied Quantitative Methods (Group of TSRS)

AQMA

Air Quality Maintenance Area

AQMD

Air Quality Management District

AQWMA

Air Quality and Waste Management Association

Ar

argon (element, Z = 18)

AR

Administrative Reference (bulletins)

AR

– Administrative Record
– antireflection (coating)
– Argonne Area Office (DOE)
– Arkansas (use only with ZIP code addresses)
– as received
– authorized requestor
– autoregression

AR&TD

Advanced Research and Technology Development (DOE)

ARA

auxiliary reactor area

ARAC

– Acid Rain Advisory Committee
– atmospheric release advisory capability

ARAMCO

Arabian American Oil Company

ARAP

Aquatic Resources Alteration Permit

ARAR

applicable or relevant and appropriate regulation/requirement

ARB

Air Resources Board

ARC

– American Red Cross
– Ames Research Center
– Annual Report to Congress
– Appalachian Regional Commission
– Appliance Research Consortium
– Assessment and Remediation of Contaminated Sediments

ARCADES

Automatic RADIAC calibration and diagnostic equipment system

ARCCC

Accident Response Capabilities Coordinating Committee

ARCF

Alternative Refrigerants Calorimeter Facility

ARCOM

U.S. Army Reserve Command

ARCSS

Arctic System Sciences (NSF)

ARDEC

Armament Research, Development, and Engineering Center (U.S. Army)

ARE

– Aircraft Reactor Experiment
– algebraic Riccati equation
– aspect ratio enhancement

AREFG

Air Refueling Group (USAF)

ARELM

Alaska Railbelt Electricity Load Model

ARF

– airborne release fraction
– Air Reserve Forces (AFRES and ANG)

arg

argument (math)

ARG

Accident Response Group

ARHCO

Atlantic Richfield Hanford Company

ARI

– Air-Conditioning and Refrigeration Institute
– alternate rod injection

ARIAP

Acid Rain Impact Assessment Program

ARIES

Advanced Reactor Innovation and Evaluation Studies

ARIHE

Association of Russian Institutions of Higher Education

ARIM

Accelerator and Reactor Improvement and Modification

ARIMA

Autoregressive Integrated Moving Average (model)

ARIP

Accident Release Information Program

Ariz.

Arizona (use after city names in references, lists,tables, footnotes, bibliographies, and indexes; spell out in text)

ARK

Acquisition of and Reasoning about Knowledge

Ark.

Arkansas (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

ARL

U.S. Army Research Laboratory

ARM

– Alternative Resource Management, Inc.
– appliance research meter
– Atmospheric Radiation Measurement (Program) (DOE)

ARMA

Association of Records Managers and Administrators

ARMS

– Aerial Radiological Monitoring System
– appliance research metering system
– Area Radiation Monitor System

ARNG

Army National Guard

ARO

after receipt of order

ARPA

Advanced Research Projects Agency (DOD)

ARRG

Aerospace Rescue and Recovery Group

ARRI

All-Russian Research Center (HIWDC)

ARRL

Advanced Robotics Research Laboratory

ARRT

American Registry of Radiologic Technologists

ARS

Administrative Requirement for Safety

ARSRC

Accelerators and Radiation Sources Review Committee

ART

– Adaptive Resonance Theory
– Airborne Response Team
– Aircraft Reactor Test
– Air Reserve technician

ARTCC

Air Route Traffic Control Center

ARTEP

Annual Required Training and Evaluation Program

As

arsenic (element, Z = 33)

AS

– annual savings
– assessment study
– aviation safety

AS-KCD

Atomic Signal-Kansas City Division

ASA

– American Sociological Association
– American Statistical Association
– atomic sphere approximation
– auditable safety analysis
– AVID System authorization

ASAE

American Society of Agricultural Engineers

ASAT

antisatellite weapon

ASB

Association of Southeastern Biologists

ASC

– administrative services contractor
– advanced slagging combustor

ASCE

– American Society of Civil Engineers
– Assistant Secretary for Conservation and Renewable Energy

ASCET

American Society of Certified Engineering Technicians

ASCF

Army Signature Characterization Facility

ASChE

American Society of Chemical Engineers

ASCI

Accelerated Strategic Computing Initiative

ASCII

American Standard Code for Information Interchange

ASCL

Advanced Continuous Simulation Language

ASCLD

American Association for Crime Laboratory Directors

ASCOT

Atmospheric Studies in Complex Terrain

ASCS

U.S. Agricultural Stabilization and Conservation Service

ASD

– Analytical Services Division (K-25)
– assembly station director

ASDP

Assistant Secretary for Defense Programs

ASE

– Advanced Systems Engineering
– Alliance to Save Energy

ASEE

American Society for Engineering Education

ASEM

– American Society for Engineering Management
– Assistant Secretary for Environmental Restoration and Waste Management

ASES

American Solar Energy Society

ASESH

Assistant Secretary for Environment, Safety, and Health

ASF

– Aircraft support facility
– automatic safety feature

ASFE

Assistant Secretary for Fossil Energy

ASG

Automated Sciences Group, Inc.

ASGDI

atmospheric-sampling glow discharge ionization

ASHP

air-source heat pump

ASHRAE

American Society of Heating, Refrigerating and Air-Conditioning Engineers

ASI

– acidic stress index
– Advanced Sciences, Inc.

ASIC

application-specific integrated circuit

ASIDIC

Association of Scientific Information Dissemination Centers

ASIE

American Society of Illumination Engineers

ASIS

– American Society for Industrial Security
– American Society for Information Science

ASISWPCA

Association of State and Interstate Water Pollution Control Administrations/Administrators

ASL

American Sign Language

ASLAB

Atomic Safety and Licensing Appeal Board

ASLB

Atomic Safety Licensing Board

ASLO

American Society of Limnology and Oceanography

ASM

– advanced servomanipulator
– American Society of Microbiology
– Applied Simulation and Modeling

ASME

American Society of Mechanical Engineers

ASNE

Assistant Secretary for Nuclear Energy

ASNT

American Society for Nondestructive Testing, Inc.

ASO

Analytical Services Organization

ASP

acoustic signal processor

ASPC

Advanced Semiconductor Processing Center

ASPE

American Society of Precision Engineers

ASPEN

Advance System for Process Engineering

ASPEP

American Society of Professional Emergency Planners

ASPP

American Society of Plant Physiologists

ASPUR

Automated System for Processing Unit Requirements

ASQC

American Society for Quality Control

ASSE

American Society of Safety Engineers

ASSESS

Analytical System and Software for Evaluating Safeguards and Security

ASSS

actual safety system setting

AST

– aboveground storage tank
– advanced systems technology

ASTD

American Society for Training and Development

ASTG

Aerospace Test Group

ASTM

American Society for Testing and Materials (Philadelphia)

ASTSWMO

Association of State and Territorial Solid Waste Management Officials

ASW

antisubmarine warfare

ASWE

American Society of Women Engineers

ASWS

air support weather shield

ASZ

American Society of Zoologists

At

astitine (element, Z = 85)

AT

– Applied Technology
– Atlanta Support Office (DOE)

at. %

atomic percent

at. wt

atomic weight

AT&SF

Atchison, Topeka and Santa Fe Railway

AT&T

American Telephone and Telegraph Company

ATA

– Airport traffic area
– Automatic Target Acquisition (system)

ATACMS

Army Tactical Air Command Missile System

ATB

Advanced Technology Bomber

ATC

– air traffic control (center)
– Air Training Command
– Applied Technology Council
– auto-tuning controller

ATCM

Association for Total Cost Management

ATD

Applied Technology Division (formerly ETAC; now ETD)

ATDD

Atmospheric Turbulence and Diffusion Division (formerly ATDL; NOAA at Oak Ridge)

ATDL

Atmospheric Turbulence and Diffusion Laboratory (now ATDD; NOAA at Oak Ridge)

ATE

automatic testing equipment

ATEA

American Technical Education Association

ATES

aquifer thermal energy storage

ATF

Advanced Toroidal Facility

ATI

– Administrative Technology Institute
– American Technical Institute

ATIS

Advanced Traveler Information Systems

ATL

Applied Technology Library (K-25) (now KIRC)

ATLA

Association of Trial Lawyers of America

ATLAS

All-Terrain Lifter, Articulated System

ATLC

Atomic Trades and Labor Council

atm

atmosphere [convert to SI: pascal (Pa)]

ATM

– Atmospheric Transport Model
– Attic Test Module (RRC)
– automatic teller machine

ATMS

– articulated manipulator-transporter system
– Assumption-Based Truth Maintenance System
– Automated Transportation Management System

ATMTC

Advanced Transportation Management Training Center

ATO

Applied Technology Organization

ATP

– Acceptance Test Plan
– adenosine triphosphate
– alternate test procedure

ATR

– advanced test reactor
– automatic target recognition

ATS

Accountable Training System (replaced by TMS)

ATSC

Administrative Technical Support Complex

ATSDR

Agency for Toxic Substances and Disease Registry

ATSER

Agency for Toxic Substances and Emergency Response

ATSF

Advanced Technology Support Facility

ATTF

Advanced Technology Test Facility

ATV

auxiliary telephone vault

ATWS

– anticipated transients without scram
– anticipated transients with scram

Au

gold (element, Z = 79)

AUB

Athens Utilities Board (Tennessee)

AUEL

Automated Unit Equipment List

AUO

assistant unit operator

av

average

AV

acoustic velocity (geophysical logging)

AVC

adjustable vane compressor

AVD

acoustic variable density (geophysical logging)

AVGAS

aviation gasoline

AVHRR

advanced very high resolution radiometer

AVID

Accelerated Vendor Inventory Delivery

AVLIS

Atomic Vapor Laser Isotope Separation

AVR

– Arbeitsge-meinschaft Versuchs Reaktor (KFA, JÜlich, Germany)
– attic ventilation area ratio

AVS

– Advanced Visual Systems
– American Vacuum Society
– Application Visualization System (computer software)

AVSGTS

annulus vacuum standby gas treatment system

AWACS

Airborne Warning and Control System

AWDB

Adirondack Watershed Data Base

AWE

Atomic Weapons Establishment (Aldermaston, England)

AWEA

American Wind Energy Association

AWG

American Wire Gage

AWI

American Welding Institute

AWIS

Association for Women in Science

AWIS-ETC

Association for Women in Science, East Tennessee Chapter

AWLPG

Albuquerque Operations Work Load Planning Guidance

AWOL

absent without leave

AWPCF

Air and Water Pollution Control Facilities

AWQC

ambient water quality criteria

AWRA

American Water Resources Association

AWRE

Atomic Weapon Research Establishment (U.K.)

AWS

– alternative work schedule
– American Welding Society
– Approved Work Scope
– Association for Women in Science

AWWA

American Water Works Association

AWWT

Advanced Wastewater Treatment

AX

auxiliary system

AXAF

Advanced X-Ray Astrophysical Facility (Lockheed Martin Corp. satellite)

AZ

Arizona (use only with ZIP code addresses)

AMPTIAC

Advanced Materials and Processes Technology Information Analysis Center

ACREM

accountable classified removable electronic media

A5N-DP

Alpha 5 North Dye Penetrant

AJHA

Automated Job Hazard Analysis

AHJ

Authority Having Jurisdiction

bhp

brake horsepower

BIOS

basic input/output system (computer term)

BIOMOVS

International Biospheric Model Validation Study

BIO

Basis for Interim Operation

BIL

basic impulse level

BIEA

Building Innovations Economic Analysis

BIE

bounded implicit enumeration

BID

background information document

BiCMOS

bipolar complementary metal-oxide semiconductor

BIA

Bureau of Indian Affairs (DOI)

BI

Billings Area Office (DOE)

BFR

Breeder Fuel Reprocessing

BHT

butylated hydroxytoluene

BITS

Benefits Information Telephone System

BHN

Brinell hardness number

BHC

benzene hexachloride

BHA

butylated hydroxyanisole

BGS

below ground surface

BGO

bismuth germinate

BGC

British Gas Corp.

BG&E

Baltimore Gas & Electric

BG/SL

British Gas Slagging Lurgi

BG

– british Gas (Corp.)
– burial ground

BMSL

below mean sea level

Bi

– biot [convert to SI: ampere (A)]
– bismuth (element, Z = 83)

BM/C3

Battle Management Command Control Communications

BCF

bioconcentration factor

BMP

best management practice

BMO

Business Management Organization (now Finance and Business Management)

BMIP

Business Management Integration Project

BMI

– battelle Memorial Institute
– body mass index

BMG

Bureau of Mines and Geology (DOI)

BMEWS

Ballistic Missile Early Warning System

BMDO

Ballistic Missile Defense Organization

BMDL

below method detection level

BMAR

backlog of maintenance and repair

BIPM

International Bureau of Weights and Measures (Bureau International des Poids et Mesures)

BM&A

Business Management and Administration

BIS

Bismarck District Office (DOE)

BLS

– below land surface
– Bureau of Labor Statistics (DOL)

BLM

Bureau of Land Management (DOI)

Bldg.

Building (use when followed by number)

BLC

building load coefficient

BLAS

Basic Linear Algebra Subprogram

BL

Bettis Atomic Power Laboratory

BK

Brookhaven Area Office (DOE)

Bk

berkelium (element, Z = 97)

BJT

bipolar junction transistor

BJC

Bechtel Jacobs Company LLC

BFOQ

bona fide occupational qualifications

BMAP

Biological Monitoring and Abatement Program

BCVWDA

Bear Creek Valley Waste Disposal Area

Be

beryllium (element, Z = 4)

BDN

Biodenitrification Facility

BDMS

Bioassay Data Management System

BDHT

blowdown heat transfer

BDBA

beyond-design-basis accident

BDB

beyond design basis

BDAT

best demonstrated available technology

bd-ft

board-foot [convert to SI: cubic meter (m3)]

BD

Biology Division (ORNL)

Bd

Bound (math)

BFS

binary feature signature

BCWP

budgeted cost of work performed

BEC

Boeing Engineering and Construction Company

BCTTA

Biology and Center for Technical Transfer Area

BCTIC

Biomedical and Computing Technology Information Center

BCT

– best conventionaltechnology
– best conventional treatment

BCS

– bardeen-Cooper-Schrieffer theory
– boundary control station

BCRA

Base Closure and Realignment Act

BCR

Base Community Relations

BCP

– base Comprehensive Plan (USAF)
– baseline change proposal

BCM

Binary Chemical Munitions Program

BCOE

barrels of crude oil equivalent

BCL

Battelle Columbus Laboratories (Columbus, Ohio)

BCWS

budgeted cost of the work scheduled

BEQ

bachelor enlisted quarters

BFDP

Biofuels Feedstock Development Program

BFAF

beamformer antialiasing filter

BF3

boron fluoride

BF

bright field

BET

– baseline Evaluation Test
– Brunauer-Emmett-Teller (adsorption equation)

BESI

Bioenvironmental Engineering Service Industrial

BESD

Bioenvironmental Engineering Services Division

BES

– basic Energy Sciences
– Bioenvironmental Engineering Services
– Biomedical and Environmental Sciences
– bounding event sequence

BERR

Building Energy Retrofit Research

BERD

Buildings Energy Research and Development (DOE Office)

BE

Biomedical and Environmental Science Laboratory

BER

– bit error rate
– Building Equipment Research

BEA

Bureau of Economic Analysis

BEPS

Buildings Energy Performance Standards

BEPO

British Experimental Pile (see GLEEP)

BEP

Bureau of Engraving and Printing

BeO

beryllium oxide

BEMS

Bio Electro Magnetics Society

BEL

Biological Evaluation Laboratory

BEIR

biological effects of ionizing radiation (National Research Council)

BEIA

Biomedical and Environmental Information Analysis (Section) (formerly IR&A)

BEHD

bis(3-ethylhexyl)phthalate

BEE

bioenvironmental engineer

BMSP

Business Management Systems and Procedures

BERC

Building Envelope Research Center (ORNL)

BSFC

brake-specific fuel consumption

BTESM

Building Thermal Envelope Systems and Materials

BTESIM

Building Thermal Envelope Systems and Insulating Materials

BTECC

Building Thermal Envelope Coordination Council

BTDC

bulk thermal desorption chamber

BTD

breakthrough detector

BTC

– breakthrough curve (column-elution tests)
– Buildings Technology Center (formerly RRC) (ORNL)

BSTS

Boost-Phase Surveillance and Tracking System

BSR

Bulk Shielding Reactor

BSNET

Bachelor of Science in Nuclear Engineering Technology

BRET

Breeder Reprocessing Engineering Test

BSL

biodenitrification surge lagoon

BTS

Bureau of Transportation Statistics

BSF

Bulk Shielding Facility

BSEP

Brine Sampling and Evaluation Program

BSD

Business Systems Division

BS

Boston Support Office (DOE)

BRS

– badge Reader System
– broad-range spectrometer

BRP

Breeder Reactor Program

BROT

badge reader-operated turnstile

BRI

Business Risk International

BRG

Budget Review Group

BMS

– biomedical studies
– Business Management System

BSM

bilateral servomanipulator

BUSTR

Bureau of Underground Storage Tank Regulation

°B

degrees Baumé

BZ

nonlethal but incapacitating age

BY

budget year

BWXT

BWX Technologies

BWRSAT

boiling-water reactor severe accident technology

BWROG

Boiling Water Reactor Owners' Group

BWR

boiling-water reactor

BWP

– Beryllium Work Permit
– Burial Waste Program

BWIP

Basalt Waste Isolation Project

BWEMSP

Beryllium Worker Enhanced Medical Surveillance Program (ORISE)

BTP

– bistable trip processor
– Branch Technical Position

BVLLLWUP

Bethel Valley Liquid Low-Level Waste Upgrade Project

BTIS

beam tube isolation system

BURC

Business Unit Review Committee

BUR

– built-up roof
– Business Unit Review

BuMines

U.S. Bureau of Mines (DOI) (also BOM and USBM)

Bul.

Bulletin (use when followed by number in citations)

BUILD

Baseload Utilities Integrated Location Decisions (System)

BUDPREP

budget preparation system

BU

Butte Projects Office (DOE)

bu

bushel [convert to SI: cubic meter (m3)]

BTX

benzene-toluene-xylene

Btu

British thermal unit [convert to SI: joule (J) or, in some cases, watt (W)]

BREN

Bare Reactor Experiment - Nevada

BVLLW

Bethel Valley low-level waste

BOA

– basic ordering agreement
– Broadband Optical Absorber

BOR

Bureau of Outdoor Recreation

BOQ

bachelor officer quarters

BOP

– balance of plant
– blowout preventer

BONUS

Boiling Nuclear Superheat Reactor

BOMA

Building Owners and Managers Association

BOM

– benthic organic matter
– U.S. Bureau of Mines (DOI) (also USBM and BuMines)

BOIP/QQPRI

Basis of Issue Plan/Quantitative and Qualitative Personnel Requirements Information

BOIP

Basis of Issue Plan

BOD5

5-day biochemical (or biological) oxygen demand

BOD

– biochemical (or biological) oxygen demand [a subscript number (e.g., BOD5) represents the number of days over which measurements were taken]
– Business Operations Division

BRF

Bioprocessing Research Facility

BOB

U.S. Bureau of the Budget (now OMB)

BP

– boiling point
– British Petroleum (a company name)

BO

budget outlay/obligation

BNWL

Battelle Northwest Laboratories (now PNL) (Richland, Washington)

BNL

Brookhaven National Laboratory (Upton, New York)

BNI

Bechtel National, Inc.

BNFP

Barnwell Nuclear Fuel Plant

BNF

British Nuclear Fuels

BNA

Bureau of National Affairs, Inc. (Washington, D.C.)

BN

boron nitride

BMWT

Biofuels and Municipal Waste Technology Division (DOE)

BMW

bombardment wing (USAF)

BOC

beginning of cycle

BPN

backpropagation network

BRDC

Bioprocessing Research and Development Center (CTD)

BRC

below regulatory concern

BRA

Beryllium Restricted Area

BR3

Belgian reactor (40 MW)

BR

breeder reactor

Br

bromine (element, Z = 35)

Bq

becquerel

BPX

Burning Plasma Experimental Reactor

BPU

bypass unit

BPT

back-pressure turbine

BOS

Base Operating Support

BPO

Bartlesville Project Office (DOE)

bp

boiling point

BPMD

Battelle Project Management Division

BPJ

best professional judgment

bpi

bits (binary digits) per inch (computer term)

BPCT

best practicable control technology

BPCD

bipolar pulse conductivity detector

BPAO

Base Public Affairs Office

BPA-UC

Bonneville Power Administration - Upper Columbia Area

BPA-SR

Bonneville Power Administration - Snake River Office

BPA-LC

Bonneville Power Administration - Lower Columbia Area

BPA

– blanket purchasing agreement
– Bonneville Power Administration

BPDE

benzo[a]pyrene-diol-epoxide

bps

bits (binary digits) per second (computer term)

B&F

Business and Finance Division (formerly F&M) (now F&BM) (ORNL)

BAC

budget at completion

BAAQMD

Bay Area Air Quality Management District

BAA

Broad Agency Announcement

BaA

benz[a]anthracene

BA

– batavia Area Office (DOE)
– budget authorization
– building audit

Ba

barium (element, Z = 56)

B2H6

diborane (gas)

B&W

Babcock and Wilcox (preferred over "B-W")

B&RC

– budget and reporting classification
– budget and resource classification

BACT

best available control technology

B&PV

Boiler and Pressure Vessel Code

B&G

bitumen and gravel

B/P

blueprint

B/C

benefit-to-cost ratio

B-W

Babcock and Wilcox ("B&W" is preferred)

B.S.

Bachelor of Science

B.A.

Bachelor of Arts (also A.B.)

B

– billion(s) [when used with dollars, use only when preceded by dollar sign and one or more numbers; use no space between number and B (e.g., $2B = $2,000,000,000 or two billion dollars)]
– boron (element, Z = 5)
– byte
– magnetic field strength in teslas

b

barn [convert to SI: square meter (m²); sometimes "barn" is acceptable]

BPI

boost-phase intercept

BCE

base civil engineer

B&R

budget and reporting

bbl

barrel [convert to SI: cubic meter (m³)]

BCCP

Baseline Configuration Control Board

B&A

Bid and Award

BCD

– base-catalyzeddecomposition
– binary-coded decimal

BAI

backup aircraft inventory

bcc

body-centered cubic

BCBG

Bear Creek Burial Ground

BC

– bear Creek
– before Christ
– boundary condition
– Β-glucosidase

bbl/d

barrels per day [convert to SI: cubic meters per second (m3/s)]

BBER

Bureau of Business and Economic Research

BBE

base bioenvironmental engineer

BASH

bird-aircraft strike hazard

BaP

benz[a]pyrene or benzo[a]pyrene

bar

[do not abbreviate this word (obsolete unit); convert to SI: pascal (Pa)]

BBS

– Behavior-Based Safety
– Bulletin Board System

BASEC

Budget Allocation System for Environmental Cleanup

BBD

bucket-brigade device

BASIC

beginner's all-purpose symbolic instruction code

BAT

best available technology

BBA

Beryllium Boundary Area

BBC

balanced biological community

BBCSI

Brown-Boveri Control Systems, Inc.

BB

billion barrels

CMR

– consolidated Materials Report
– continuous metallothermic reduction

CNEPA

Comprehensive National Energy Policy Act of 1992

CNCMC

Computer Numerical Control Machine Center (ORNL)

CNC

Computer Numerical Control (ORNL)

CMT

– Center for Manufacturing Technology
– Crisis Management Team

CMSA

Consolidated Metropolitan Statistical Area

CMPC

Classified Matter Protection and Control

CMOS

complementary metal-oxide semiconductor

CMP

– Compliance Management Process
– Comprehensive Medical Plan
– Controlled Manufacturing Program

Co

cobalt (element, Z = 27)

CNF

Central Neutralization Facility

CMS

corrective measures study

cNFS

Network Central File Server

CNG

compressed natural gas

CNIE

Computing, Networking, Informatics, and Education (directorate of CAD, CCS, EP&M, OLC, and OSEPER)

CNM

Clinic for Nuclear Medicine (Bonn, Germany)

CNPE

Center for Natural Phenomena Engineering

CNR

– center for Neutron Research (now ANS)
– Central Neutralization Facility (K-25 Site)

CNRA

– center for Nuclear Regulatory Analysis
– Committee on Nuclear Regulatory Activities (OECD, NEA)

CNRS

National Scientific Research Center (Centre National de la Recherche Scientifique) (France)

CNS

central nervous system

CNWDI

Classified Nuclear Weapon Data Information

CO

– carbon monoxide
– Colorado (use only with ZIP code addresses)
– consent order
– contracting officer

CMOD

crack mouth opening displacement

CLP

– contract Laboratory Program (EPA)
– current-limiting protector

CNSI

Confidential National Security Information (also C/NSI)

CMA

– certified Management Accountant
– Chemical Manufacturers Association
– classified mail address

CLC

– chlorocarbon
– Computer Learning Center (Knoxville)

CLEO

classified literature searching system (OSTI)

CLIMAP

Climate Long-Range Investigation Mapping and Prediction

COMET

Center of Model Evaluation Technology

CLR

collector load ratio

Co.

Company (spell out in text; abbreviate in references, lists, tables, footnotes, bibliographies, and indexes)

CLUP

Comprehensive Land Use Plan (DOD)

cm

centimeter

Cm

curium (element, Z = 96)

CM

– centrifuge manufacturer
– certification maintenance
– configuration management
– corrective maintenance
– corrective measure
– countermeasure
– crisis manager

cm2

square centimeter

CLRC

Construction Labor Research Council

cm/s

centimeters per second

CMO

– central Management Offices (ORNL)
– Computer Manual Ordering Service (ORNL Library)

CMAA

– construction Manufacturers Association of America
– Crane Manufacturers Association of America

CMC

– carboxymethyl-cellulose
– Ceramic Manufacturability Center
– Consolidated Manufacturing Complex

CMD

– central Mail Database
– command device (computer term)

CME

comprehensive monitoring evaluation

CMF

– cask Maintenance Facility
– Containment Mockup Facility

CMH

control mechanism housing

CMI

corrective measures implementation

CMIS

Configuration Management Information System

CML

– chronic myelogenous leukemia
– Composite Materials Laboratory
– conservative most likely
– Critical Mass Laboratory

CMM

coordinate measuring machine

CMMI

Center for Molecular Medicine and Immunology (University of New Jersey)

cm3

cubic centimeter

COO

chief operating officer

colog

cologarithm (math)

COMSEC

communications security

COMVAN

communications van

CON

conservation and renewable energy

CONAES

Committee on Nuclear and Alternative Energy Sources

concn

concentration (MSDS)

CONEG

Coalition of Northeastern Governors

CONFIDES

Configuration Identification System

conj

conjugate (math)

Conn.

Connecticut (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

CONOPS

conduct of operations

comp(s).

compiler(s) (use in citations)

CONUS

continental United States (see OCONUS)

CoMO

Consolidated Management Office

COP

coefficient of performance

COR

contracting officer's representative

CORA

Cost of Remedial Action (model)

CORBAN

Corps Battle Analyzer

CORECT

Committee on Renewable Energy Commerce and Trade

CORETECH

Council on Research and Technology

Corp.

Corporation (spell out in text; abbreviate in references, lists, tables, footnotes, bibliographies, and indexes)

CORSOR

core source fission product release rate

cos

cosine (trigonometric function)

COS

Corporate Open Systems (C&TS)

cosh

hyperbolic cosine (hyperbolic function)

const

constant (math)

COFO

conduct of facility operations

COB

– close of business (also c.o.b)
– coordination of benefits

COBOL

common business-oriented language

COBRA

Consolidated Omnibus Reconciliation Act

COC

– certificate of Compliance
– Chain of Custody
– contaminant of concern

COCA

– certificate of Competent Authority
– consent order compliance agreement

CoCl2

cobaltous chloride

COCl2

phosgene

COD

– cash on delivery (also c.o.d.)
– chemical oxygen demand
– crack opening displacement

CODAS

computer-operated data acquisition system

CODEDACS

Component Development Data Acquisition System

COE

– coefficient of efficiency
– command operational element (U.S. Army)
– Corps of Engineers (U.S. Army)
– cost of electricity

COMPMECH

compensatory mechanisms in fish populations

COEI

Composition of Ending Inventory

CO2

carbon dioxide

COG

– cell off-gas
– central off-gas (system)
– continuity of government

COGEMA

French Fuel Enrichment and Processing Corporation

COGEMT

Continuity of Government Emergency Management Team

COI

conflict of interest

coin

coincidence (math)

Coker

Cokernel (math)

Colo.

Colorado (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Denver)

CLB

current licensing basis

COM

– colloidal organic macromolecule
– computer output microfilm/microfiche

CIMP

Corporate Information Management Policy

COMIT

Conduct of Operations Management Issues Team

coeff

coefficient (math)

CHAMPUS

Civilian Health and Medical Program of the Uniformed Services

CGPM

General Conference on Weights and Measures

CGRADSTA

Coast Guard Radar Station

cgs

centimeter-gram-second (measurement system) (replaced by SI)

CGW

concentration guide for water

CH

contact handled

CH/RH-LLW

contact-handled/remotely handled low-level waste

CH-TRU

contact-handled transuranic waste

CH2

hydrocarbon

CH3CClF2

chlorodifluoroethane (refrigerant)

CH3CHF2

difluoroethane (refrigerant)

CH4

methane

CHIP

chemical hazard information profile

CHAMMP

Computer Hardware, Advanced Mathematics, and Model Physics (DOE)

CGLG

Council of Great Lakes Governors

Chap(s).

Chapter(s) (use only when followed by number; spell out at beginning of sentence)

CHARM

Complex Hazardous Air Release Model

CHB

container handling building

CHCl3

chloroform

CHClF2

chlorodifluoromethane [Freon 22 (refrigerant)]

Chem Tech

Chemical Technology Division

CHEMTREC

Chemical Transportation Emergency Center

CHEP

Chemical Hazard Evaluation Program

CHERPS

Computerized Hypergolic Emergency Response Protocol System

CHF

critical heat flux

CIMSC

Corporate Information Management Steering Council

CHABA

Committee on Hearing, Bioacoustics, and Biomechanics

CFTL

component flow test loop

CFEST

Coupled Flow, Energy, and Solute Transport (computer code)

CFF

cumulative fuel failure

CFFF

coal-fired flow facility

CFM

– Centrifuge Facilities Modification
– cubic feet per minute ["ft3/min" is preferred over "CFM";convert to SI: cubic meters per second (m3/s), which is preferred over liters persecond (L/s); see restrictions listed under "L" for "liter"]

CFMS

critical functions monitoring system

CFO

chief financial officer CFR

CFRD

Confidential Formerly Restricted Data (classification)

CFRF

Consolidated Fuel Recycling Facility

CFRP

Consolidated Fuel Reprocessing Program (RPS)

CFRPCDD

Consolidated Fuel Reprocessing Program Criticality Data Development

cfs

cubic feet per second ["ft3/s" is preferred over "cfs"; convert to SI: cubic meters per second (m3/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

CGP

Common Ground Process (DOE)

CFSP

Cooperative Forest Studies Program (ORNL)

CGM

– Center for Gear Metrology
– Computer Graphics Metafile

cg

centigram

CG

commanding general (U.S. Army)

CGA

– color graphics adapter
– Compressed Gas Association

CGB

control guidance block

CGD

computer-generated display

CGE

computable general equilibrium (model)

CGER

Commission on Geosciences, Environment, and Resources (National Academy of Sciences)

CGES

Center for Global Environmental Studies

CGI

– color graphics image
– compressed-gas insulated
– combustible-gas indicator

CGIT

compressed-gas insulated transmission

CGL

comprehensive general liability

CHMM

Certified Hazardous Materials Manager

CFS

– central file storage
– common file storage/system
– Commodity Flow Survey
– Comprehensive Facility Survey

CIRM

Certified in Integrated Resource Management (APICS)

CIMA

Cellulose Insulation Manufacturers Association

CIMLINC

computer-integrated manufacturing LINC system

CPFF

cost plus fixed fee

CIMSA

Corporate Information Management Strategies and Architectures

COSH

Construction Occupational Safety and Health

CINC

commander in chief

CINCUSAREUR

Commander in Chief, U.S. Army, Europe

CIO

corporate information officer

CIP

Cascade Improvement Program

CIPM

International Committee for Weights and Measures

CIPREC

Conversational and Interactive Project Evaluation and Control

CHIL

Consolidated Hazardous Items List

cir mil

circular mil

CIH

Certified Industrial Hygienist

CIRRPC

Committee on Interagency Radiation Research and Policy Coordination

CIS

– center for Industrial Services (UT)
– Central Information Services (IMS)
– Central Information Systems (IMS)
– Characterization Investigation Study
– Commonwealth of Independent States
– containment isolation system
– Continuous Improvement Skills (DPR)
– Contract Information System

CISC

complex instruction set computer

CISEP

Cellulose Industry Standards Enforcement Program

CIT

Compact Ignition Tokamak

CIVEX

Civilian Extraction

CIVPERCEN

U.S. Army Civilian Personnel Center (became TAPA, now CID)

CJCS

Chairman of the Joint Chiefs of Staff

cl

closure ("Cl" is preferred) (math)

Cl

– chlorine (element, Z = 17)
– closure (preferred over "cl") (math)

CL

– centerline
– copper laser

Cir.

Circular (publication) (use when followed by number in citations)

CICA

– Center for Innovative Computing Applications (Indiana University)
– Competition in Contracting Act

CHO

Chicago Operations Office (DOE)

CHP

– chemical heat pump
– Chemical Hygiene Plan

CHRIS

Chemical Hazards Response Information System

CHRS

Center for Human Reliability Studies (ORISE)

CHS

– Compact Helical System
– computer hardware and software

Ci

curie [convert to SI: becquerel (Bq); sometimes "curie" is acceptable]

CI

– Columbus Initiative
– command interpreter (computer term)
– confidence interval
– configuration items
– counterintelligence

CIA

– Central Intelligence Agency
– Corporate Independent Assessment

CIAC

Computer Incident Advisory Capability (DOE)

CIAP

Climate Impact Assessment Program

CIAQ

Committee on Indoor Air Quality

CIM

– computer-integrated manufacturing
– Corporate Information Management

CIC

– compensated ion chamber
– Corporate Information Center

CIIDF

Class II disposal facility

CICD

Classification and Information Control Department (K-25 Site)

CICI

Corporate Information Center Interface

CICO

– Classification and Information Control Office
– classified information control officer

CICUG

Corporate Information Center Users Group

CID

– charge-injection device (camera)
– Civilian Information Directorate (formerly CIVPERCEN, then TAPA)
– component identification
– Construction Interface Document
– cubic inch displacement

CIE

– Commission Internationale de l'Eclairage
– computer-integrated engineering
– computer-integrated enterprise

CIED

Computer Integrated Enterprise Division

CIEMAT

Centro de Investigaciones Energéticas, Medioambientales, y TecnolÓgicas

CIF

– Cargo Integration Facility
– Consolidated Incinerator Facility

CIG

color image graphics

CIGRE

International Conference on Large High Tension Electric Systems (Conference Internationale des Grand Reseaux Electriques)

Cl2

chlorine gas

CIAR

Center for Indoor Air Research

CSETMG

Central Safety Evaluation Team Management Group

csch

hyperbolic cosecant (hyperbolic function)

CSNI

Committee on the Safety of Nuclear Installations (OECD, NEA)

CSMO

Central Scrap Management Office

CSMA/CD

carrier sense multiple access with collision detector (computer term)

CSMA

Chemical Specialties Manufacturing Association

CSM

conceptual site model

CSLF II

Centralized Sanitary Landfill II

CSLF

Centralized Sanitary Landfill

CSIRO

Commonwealth Scientific and Industrial Research Organization

CSI

– clean Sites Incorporated
– Computational Systems, Inc.
– Computer Security Institute
– Consultec Scientific, Inc.
– control sequence interface

CSHEAC

Central Safety, Health, and Environmental Affairs Committee

CSP

Certified Safety Personnel

CSETWG

Central Safety Evaluation Team Working Group

CSPE

chlorosulfonated polyethylene

CSET

Central Safety Evaluation Team

CSEPP

Chemical Stockpile Emergency Preparedness Program (U.S. Army-FEMA) (Energy Division)

CSEP

Confined Space Entry Program (K-25)

CSE

– Conservation and Solar Energy (DOE)
– criticality safety evaluation

CSDS

Client Server Development System (C&TS)

CSDNA

CF-source-driven-noise analysis

CSDP

– cask Systems Development Program [OCRWM (DOE)]
– Chemical Stockpile Disposal Program

CSDF

Chemical Stockpile Disposal Facility

CSDD

conceptual system design description

CSD

– cold shutdown
– critical solvent de-ashing

CPED

Computational Physics and Engineering Division (ORNL)

CSG

– coding and software generation
– combat support group

CMSC

Central Manufacturing Support Complex

CTI

Cooling Tower Institute

CTG

control technique guidance

ctg

cotangent ("cot" is preferred) (math)

CTF

– central Training Facility
– Component Test Facility
– contrast transfer function

CTE

coefficient of thermal expansion

CTD

– chemical Technology Division (ORNL)
– conductivity-temperature-depth
– cumulative trauma disorder [injury from repetitive motion (e.g., carpal tunnel syndrome)]

CTCS

Classified Timesharing Computer System

CTC

compatibility test chamber

CTB

– community Television Board (City of Oak Ridge)
– smear counter (beta)

CTA-CTB

smear counter (alpha)-smear counter (beta)

CTA

– center for Transportation Analysis (ORNL)
– Central Training Academy
– smear counter (alpha)

CSO

– combined sewer overflow
– computer security officer

CT

– center tap
– Connecticut (use only with ZIP code addresses)
– current transformer

CSC

– civil Service Commission
– cooling seasonal cost

CSTC

Combat Support Training Complex

CST

Chemical Systems Test

CSSO

computing system security officer

CSSG

Central Safeguards and Security Group

CSSA

Central Safeguards and Security Agreement

CSS

– Command Software Systems (a company name)
– Common Site Support (overhead pool)

CSR

– Center for Space Research (MIT)
– criticality safety requirement
– critical safety review
– Customer Service Representative (of ISD)

CSPUC

Ceramic Specimen Preparation User Center (HTML)

CSPT

core support performance test

CSPP

Computer Systems Policy Project

CSPF

cooling seasonal performance factor (also SPFC)

CFEM

combined fates and effects model

CRDEC

Chemical Research Development and Engineering Center (U.S. Army)

CSCSC

cost/schedule control systems criteria

CRP

Coordinated Research Program (IAEA)

CRM

– center for Risk Management
– Clinch River mile

CRL

– central Research Laboratories (commercial firm)
– Central Research Library

CRK

Clinch River kilometer

CRI

– consortium of Research Institutions
– Contract Reform Initiative (DOE)

CRHR

Chestnut Ridge Hydrogeologic Regime

CRG

Configuration Review Group

CRESO

Clinch River Environmental Studies Organization

CREDO

Centralized Reliability Data Organization

CRE

– conservation and Renewable Energy
– controlled residual element
– corrosion resistant

CRREL

Cold Regions Research Engineering Laboratory (U.S. Army)

CRDM

control rod drive mechanism

CRRFI

Clinch River Resource Conservation and Recovery Act Facility Investigation

CRC

– contamination reduction corridor
– Criticality Review Committee
– cyclic redundancy check

CRBRP

Clinch River Breeder Reactor Project/Plant

CRBR

Clinch River Breeder Reactor

CRBED

commercial reference building energy demand

CRBAWP

Chestnut Ridge Borrow Area Waste Pile

CRB

– change Review Board
– Cost Risk and Benefit

CRAVE

Carcinogen Risk Assessment Verification Enterprise

CRAF

Comet Rendezvous Asteroid Flyby

CRADA

cooperative research and development agreement

CRAD(s)

Criteria and Review-Approach Document(s)

CRDR

control room design review

CS

– carbon steel
– charge sensitive
– cold source
– Communication Services
– communication system
– communications subsystem
– compact specimen

csc

cosecant (trigonometric function)

CSAUP

Comprehensive Safety Assessment and Upgrade Program

CSAU

code scaling applicability and uncertainty

CSAR

conceptual safety analysis report

CSAP

Corporate Self-Appraisal Program

CSAO

Construction Safety Association of Ontario

CSAM

Center for the Study of Advanced Materials

CSA

– comprehensive safety assessment
– criticality safety analysis
– criticality safety approval
– current signature analysis

CS&HF

Cognitive Systems and Human Factors (group of EP

CS&H

Central Safety and Health (organization)

CS-G&A

Common Support - General and Administrative

CRPS

control rod power supply

CS2

cost/schedule control systems

CTPD

core thermal power demand

Cs

cesium (element, Z = 55)

Cs

saturation concentration

CRZ

Contamination Reduction Zone

CRWQCB

California Regional Water Quality Control Board

CRTP

Civilian Reactor Technology Program

CRTGA

control room toxic gas analyzer

CRT

– cathode-ray tube
– chemical-radiative-transport (model)
– Contract Reform Team (DOE)

CRSP

Chestnut Ridge Security Pits

CRSDB

Chestnut Ridge Sediment Disposal Basin

CRS

– complex Reconfiguration Study
– Computer Resource Systems (CHS AVID vendor, Knoxville)
– Congressional Research Service
– Customer Reports Systems

CRRI

Clinch River Remedial Investigation

CS-CIS

Common Support - Common Industrial Support

CPU

central processing unit (preferred over "cpu")

CTL

– cable Technology Laboratories, Inc.
– component test loop
– Construction Technology Laboratory

CPO

– Civilian Personnel Office (U.S. Army)
– College Programs Office

CPP

– cascade Pilot Plant
– Certified Protection Professional

CPPM

computer protection program manager

CPR

– cardiopulmonary resuscitation
– Central Publications and Presentations Registry (formerly TIDD)
– critical power ratio

CPRS

Contract Purchasing Review System

cps

cycles per second

CPS

Certified Professional Secretary

CPSC

U.S. Consumer Product Safety Commission

CPSD

cross-power spectral density

CPSR

– contractor Performance System Review
– Contractor Procurement System Review

CPM

– central policy manager
– Certified Professional Manager
– control processor module
– critical path method

cpu

central processing unit ("CPU" is preferred)

cpm

– counts per minute
– cycles per minute

CPUE

catch per unit effort

CPVC

postchlorinated polyvinylchloride

CPW

continuous polymer wire

CPX

command post exercise

CPZ

contingency planning zone

Cr

chromium (element, Z = 24)

CR

– capacity resistive
– carriage return
– community relations
– convergence ratio
– core requirement

CR

Congressional Record

CR-ERNS

Continuous Release-Emergency Response Notification System

CR-RC

capacity resistive - resistive capacity

CRA

– Civil Rights Act of 1964
– Criteria Review Approach

CPTP

Columbia Plateau Techtonic Province

CPBT

core pressure boundary tube

COSPLUM

Crystalline Overthrust Structures on the Platform Localizing Unconventional Methane

cot

cotangent (preferred over "ctg") (trigonometric function)

coth

hyperbolic cotangent (hyperbolic function)

COTR

contracting officer's technical representative

COTS

commercial off-the-shelf (item)

cov

covariance (math)

covers

coversed sine (trigonometric function)

cp

– candlepower
– chemically pure (preferred over "CP")

CP

– capital construction project
– chemically pure ("cp" is preferred)
– circular polarization
– coincidence processor
– command post (U.S. Army)
– control processor
– cost proposal
– Crediting Plan (U.S. Army)

CP&D

construction planning and design

CPA

– certified public accountant
– coherent-potential approximation

CPNX

combined pulsed-neutron and X-ray interrogation inspection

CPAO

Central Public Affairs Office

°C

degrees Celsius (Celsius scale was formerly called centigrade)

CPC

core protection calculator

CPCF

Central Pollution Control Facility

CPCI

Central Personnel Clearance Index

CPDD

conceptual project design description

CPDF

Centrifuge Plant Demonstration Facility

CPE

– centrally planned economy
– contractor performance evaluation

CPF

carcinogenic potency factor

CPI

– characters per inch
– chemical process industry
– cost performance index

CPIF

cost plus initiative fee

CPIM

Certified Production and Inventory Manager (APICS)

CPL

Component Preparation Laboratory

CPAF

cost plus award fee

CuO

copper oxide

CVS

– central vascular system
– clad vent sets

CVR

combat vehicle robotics

CVN

Charpy V-notch

CVM

cluster variation method

CVL

– continuous vent line
– copper vapor laser

CVI

– chemical vapor infiltration
– Coastal Vulnerability Index

CVD

chemical vapor deposition

CVCS

chemical volume control system

CVB

command validation block

CV

control valve

CUSEC

Central United States Earthquake Consortium

CRAC

– Calculations of Reactor Accident Consequences
– conséquences radiologiques d’un accidente de criticité (radiological consequences of a criticality accident)
– control room air conditioning

CUP

– carcinogen usage plan
– Cascade Uprating Program

CVT

continuously variable transmission

CUMACS

Computerized Utilities Monitor and Control System

CUA

– common User Access (IBM)
– controllable unit approach

Cu

copper (element, Z = 29)

CTTF

Centrifuge Training and Testing Facility

CTT

cost and transit time

CTSO

Computing and Telecommunications Security Organization

CTSB

Computing and Telecommunications Standards Board

CTS

Central Technical Services (ORNL)

CTRC

Collaborative Technologies Research Center [previously known as Center for Collaborative Technologies Research]

CTR

– controlled thermonuclear reaction
– cycle-time reduction

COSPAR

Committee on Space Research

CURE

chemical unit record estimate

CWP

comprehensive work plan

CTP

– ceramic Technology Project (DOE)
– Cold Test Pit (INEL)

CZMA

Coastal Zone Management Act of 1972

CZ

Clear Zone (USAF)

CYWP

Current Year Work Plan

CYRTF

Coal Yard Runoff and Treatment Facility

cyl

cylinder

CY

calendar year

CXE

charge-exchange excitation

CX

Categorical Exclusion

cwt

hundredweight [convert to SI: kilogram (kg)]

CWSS

Community Water Supply Survey

CVSA

Commercial Vehicle Safety Allowance

CWSA

Containerized Waste Storage Area

CVSHP

continuously variable-speed air-to-air heat pump

CWMO

Central Waste Management Office

CWMD

Central Waste Management Division

CWM

– center for Waste Management
– chemical waste management

CWFOO

Central Work for Others Office

CWE

current working estimate

CWDF

Central Waste Disposal Facility

CWCGP

Cool Water Coal Gasification Project

CWA

Clean Water Act of 1972 (40 CFR Pts. 100-140 and 400-470; DOE Order 5400.5)

CW

– chemical weapon
– cold worked
– concentration wave
– continuous wave

cw

continuous wave

CVTF

Centrifuge Verification Test Facility

CRACS

chemical and radiological analysis computer system

CWSF

Chemical Waste Storage Facility

CARTS

Critical Actions Requirements Tracking System

CAPP

computer-aided process planning

CARER

Center for the Advancement of Radiation Education and Research

CARES

Central America Rural Electrification Support (Program)

CAR

– computer-aided retrieval
– corrective action report

CARL

Comparative Animal Research Laboratory (formerly managed by UT; now managed by ORAU)

CARMA

Cartesian Master Arm (robotics)

CASM

commercial advanced servomanipulator

CART

Cloud and Radiation Testbed

CAPA

– computer-aided personnel accountability
– Critical Aquifer Protection Area

CAS

– Center for Auto Safety
– Central Alarm Station
– Central Alarm System
– Chemical Abstracts Service
– Chinese Academy of Sciences
– condition assessment survey
– Cost Accounting System

CAS/SAS

central alarm system/secondary alarm system

CASAC

Clean Air Scientific Advisory Committee

CASCADE

computer-aided systems and control analysis and design environment

CASD

Chemical and Analytical Sciences Division

Calif.

California (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Los Angeles, San Diego, or San Francisco)

CARS

Corrective Action Report and Status (form)

CAMP

– Capital Asset Management Process
– Capital Assets Management Plan

CCBC

Council of Community Blood Centers

CALS

– computer-aided acquisition and logistics support
– Continuous Acquisition Logistics Support

CAM

– computer-aided manufacturing
– configure and modify
– Consumer Awareness Management
– continuous air monitor
– crassulacean acid metabolism

CAM-1

Computer Aided Manufacturing-International, Inc.

CAMA

Center for Advanced Microstructural Analysis

CAMAC

computer-aided/automated measurement and control

CAPE

Civilian Applications Program Engineering

CAMDS

Chemical Agent Munitions Disposal System

CAPCA

closure and postclosure activity

CAMS

Crisis Action Management System

CAMU

Corrective Action Management Unit

CANDU

Canadian Deuterium Uranium Reactor

CANS

– Center for Applied Nonlinear Sciences
– combination area neutron spectrometer

CaO

calcium oxide

CAP

– capacity assurance plan
– Civil Air Patrol
– Clean Air Program
– Communication Alarm Processor
– computer-aided productivity
– Corrective Action Plan
– Corrective Action Program
– Customer Advantage Program

CaSO4

calcium sulfate

CAMDEC

Ceramics Advanced Manufacturing Development and Engineering Center (30-company consortium formed in Oak Ridge, March 1987)

CBT

computer-based training

CBH

cellobiohydrolase

CBI

confidential business information

CBN

Classified Broadband Network

CBO

Congressional Budget Office

CBOD

carbonaceous biochemical oxygen demand

CBR

California bearing ratio

CASE

computer-aided software engineering

CBS

– Center for Biological Sciences
– cost breakdown structure

CBD

Commerce Business Daily

CBTEC

Computer-Based Training for Environmental Compliance

cc

cubic centimeter

CC

– carbon-carbon (also C/C)
– Career Center (formerly Placement Center)
– construction contractor

CCA

control center assistant

CCB

– Change Control Board
– configuration control board

CCBA

coupled-channel Born approximation

CBRC

Commission on Base Realignment and Closure (DOD)

CAU

Clark Atlanta University

CASRN

Chemical Abstract Services Registry Numbers

CASTLE

Center for Applied Science for Technology and Law Enforcement

CAT

– collection and transfer (ORNL)
– computerized axial tomography (scanner)

CATC

Corrective Action Tracking Committee

CATD

Center for Advanced Technology Development (Iowa State University)

CATROB

Computer Assisted Telemanipulation with Robots (KfK)

CBED

convergent-beam electron diffraction/diffractor

CATV

cable television

CBE

Center for Business and Economic Research (UT)

CAVIS

Continuous Automated Vault Inventory System

CAWG

Clean Air Working Group

CB

core blockage

CBC

– circulating bed combustor
– compact badger cluster

CBCF

carbon-bonded carbon fiber

CBD

– Characteristics Data Base
– chronic beryllium disease

cal

calorie [convert to SI: joule (J)]

CATS

– Computer Assisted Tracking System
– Correspondence Action Tracking System

C&TS

Computing and Telecommunications Services [now Information Technology Services (ITS)]

c-Si

crystalline silicon

C/C

carbon-carbon (also CC)

C/LM

conservation and load management

C/MIS

Communications/Management Information System

C/NSI

Confidential National Security Information (also CNSI)

C/PC

closure/postclosure

(C2H5)3N

triethylamine

C&REP

Conservation and Renewable Energy (programs) (ORNL)

C-E

Combustion Engineering (also CE)

C&UPP

College and University Partnership Program

C2

command and control (U.S. Army)

C2Cl2F4

dichlorotetrafluoroethane [Freon 114 (refrigerant)]

C2Cl3F3

trichlorotrifluoroethane [Freon 113 (refrigerant)]

C2Cl4F2

– 1,1,2,2-tetrachloro-1,2-difluoroethane [Freon 111 (refrigerant)]
– 1,2-difluoro-1,1,2,2-tetrachloroethane [Freon 112 (refrigerant)]

CALMMS

Computerized Air Launched Missile Management Support

C/TIO

Classification and Technical Information Office

c.g

center of gravity

CMU

concrete masonry unit

CFD

computational fluid dynamics CFDA

COOC

Conduct of Operations Oversight Council

CARB

Corrective Action Review Board

CREM

classified removable electronic media

CRAD

Criteria Review and Approach Document

C-RD

Confidential-Restricted Data (classification)

c

crystalline

C-MU

Carnegie-Mellon University

c.o.d.

cash on delivery (also COD)

C.I.

cast iron

C.I.P.

cast in place

c.m.

center of mass

C.V.

coefficient of variation (math)

C-CAP

Coast Watch Change Analysis Program

C3H8

propane

CAPS

Corrective Action Planning System

CaF(Eu)

europium-doped calcium fluoride

CAD

– computer-aided design/drafting/drawing
– Computing Applications Division (ORNL)

CADAM

computer-aided design and augmented manufacturing

CAD-CAM

computer-aided design/computer-aided manufacturing (now CIM)

CADD

computer-aided design and drafting

CADRE

computer-assisted detection and report enhancement

CADS

Characterization Analysis Database System

C2ClF5

chloropentafluoromethane[Freon 115 (refrigerant)]

CAER

Community Awareness and Emergency Response

CaCO3

calcium carbonate

CAFE

– computer-Aided Fabric Evaluation (a CRADA project)
– Corporate Average Fuel Economy

CAG

Carcinogen Assessment Group (EPA)

CAI

– computer-aided instruction
– controlled-air incinerator

CAINS

Carrier Aircraft Inertial Navigation System

CAIRA

chemical accident/incident response and assistance

CAIS

Condition Assessment Information System

CAE

computer-aided engineering

CA

– calculation aid
– California (use only with ZIP code addresses)
– civil and architectural
– cleanup action/activity
– component assembler
– configuration administrator
– corrective activity
– corrective action

C3I

command, control, communications, and information

C4F8

perfluorocyclobutane (being tested for CFC substitute; will not harm ozone layer)

C4F10

perfluorobutane (Teflon derivative being tested for CFC substitute; will not harm ozone layer)

C6F6

hexafluorabenzene

C6H5SH

thiophenal

C18H15PO3

triphenyl phosphate

CACSD

Computer Aided Control Systems Design

Ca

calcium (element, Z = 20)

CACS

Commercial and Apartment Conservation Service

ca.

circa (about) (use for dates only)

CA/PA

collision avoidance positive acknowledgment (computer term)

CAA

– Civil Aeronautics Authority
– Clean Air Act of 1970 (see CAAA) (40 CFR Pts. 50-80; DOE Orders 5400.1 and 5400.5)
– Color Additive Amendment of 1960 (FDCA)
– Computer Access Authorization
– continuous alpha air (monitor)
– U.S. Concept Analysis Agency

CAAA

Clean Air Act Amendments (of, e.g., 1990)

CAAM

– continuous air alarming monitor
– continuous alpha air monitor

CAAS

Criticality Accident Alarm System

c.o.b.

close of business (also COB)

C60

60-atom cluster (buckyball)

CELV

Complementary Expendable Launch Vehicle

CEDS

Centralized External Dosimetry System

CEEI

Center for Energy and Environmental Information

CEEM

Center for Energy and Environmental Management

CEER

Center for Energy and Environmental Research (Puerto Rico)

CEF

Critical Experiments Facility

CEH

Center for Environmental Health

CEP

– catalytic extraction processing
– Combat Events Processor
– Combat Events Program
– Compliance, Evaluations, and Policy (organization)

CELDS

Comprehensive Environmental Legislative Data System

CED

Chemical Engineering Design

CF

– central files
– certainty factor
– Conservation Foundation
– concentration factor
– contingency fund
– correction factor
– current feedback

CEMP

– Central Emergency Management Plan
– Comprehensive Emergency Management Plan

CCBP

coal combustion by-product

CEMT

Capacity Expansion Management Team

cent

(neither abbreviate this word nor use cent sign, ¢, when used as unit of reactivity)

CdO

cadmium oxide

CEI

Compliance Evaluation Inspection

CE

– capital equipment
– Central Engineering
– Combustion Engineering (also C-E)
– construction engineer
– cooling system conversion efficiency

CDP

compliance documentation procedure

CDR

– conceptual design report
– conceptual design review
– contract discrepancy report
– critical design review

CDRD

Carbon Dioxide Research Division

CDSAR

Conceptual Design Safety Analysis Report

CdTe

cadmium telluride

CDTF

Chemical Demilitarization Training Facility

CEDMCS

control element drive mechanisms control system

Ce

cerium (element, Z = 58)

CEDE

committed effective dose equivalent

CEA

– Atomic Energy Commission (Commissariat a l'Energie Atomique) (France)
– control element assembly
– Cooperative Education Association

CEARP

Comprehensive Environmental Assessment and Response Program

CEB

Center for Environmental Biotechnology (UT)

CEBAF

Continuous Electron Beam Accelerator Facility

CEC

– California Energy Commission
– cation exchange capacity
– Commission of the European Communities

CECOM

Communications-Electronics Command

CEPOD

catalyzed electrochemical plutonium oxide dissolution

CDWS

Civil Defense Warning System

CFA

central facilities area

CET

– Center for Environmental Technology (K-25)
– Certified Environmental Trainer
– Consulting Engineers of Tennessee, Inc.
– core exit thermocouple

CETA

Comprehensive Employment and Training Act of 1973

CETS

– connector environmental test stand
– Connector Environmental Test System

CEU

– Consolidated Edison Uranium
– continuing education unit

CEUR

cooling energy use rate

CEUSP

Consolidated Edison Uranium Solidification Program/Project (ORNL)

CEO

chief executive officer

Cf

californium (element, Z = 98)

CESARm

Center for Engineering Systems Advanced Research Manipulator (ORNL)

CFADC

Controlled Fusion Atomic Data Center

CF3CHCl2

dichlorotrifluoroethane (refrigerant)

CF3CH2F

tetrafluoroethane (refrigerant)

CFCC

continuous fiber ceramic composite

CFC

– certified for construction
– chlorofluorocarbon or chlorinated fluorocarbon
– Combined Federal Campaign

C

– capacitance
– carbon (element, Z = 6)
– Celsius
– centigrade (now Celsius)
– Confidential (classification)
– coulomb

cf

compare

CERR

Center for Excellence in Reactor Operations

CEPP

– Chemical Emergency Preparedness Program
– Contractor Employee Protection Program (DOE) (10 CFR, Pt. 708)

CEQ

Council on Environmental Quality

CER

– carbon dioxide exchange rate
– Center for Epidemiologic Research (ORISE)
– Central Environmental Restoration
– Complete Engineering Release

CERCA

Compagnie pour l'étude et la Realisation de Combustibles Atomiques

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (Superfund) (40 CFR, Pt. 300; DOE Order 5400.4) (see EPCRA, SARA, and SITE)

CERCLIS

CERCLA Information System

CESR

cooling energy supply rate

CERN

European Organization for Nuclear Research [Organisation Européenne pour la Recherche Nucléaire (formerly Conseil Européen pour la Recherche Nucléaire)]

CESQG

conditionally exempt small-quantity generator

CERS

carrier evaluation report system

CERT

Computer Emergency Response Team

CERT/CC

Computer Emergency Response Team Coordination Center

CERWM

Centers for Environmental Restoration and Waste Management (DOE/K-25)

CES

– Candidate Evaluation System (U.S. Army)
– Center for Engineering Services
– Central Engineering Services
– constant elasticity of substitution

CESAR

Center for Engineering Systems Advanced Research (ORNL)

CEM

– Center for Electromechanics (University of Texas - Austin)
– Certified Emergency Manager (NCCEM)

CERL

– Civil Engineering Research Laboratory
– Construction Engineering Research Laboratory (U.S. Army)
– Corvallis Environmental Research Laboratory (EPA)

CCM

– Center for Composites Manufacturing (ORNL, ETD)
– communication control module
– core cooling monitor

CCl2FCClF2

trichlorotrifluoromethane (refrigerant)

CCl2FCH3

dichlorofluoroethane (refrigerant)

CCl3F3N2

fluorotrichloromethane [Freon 11 (refrigerant)]

CClF2CClF2

dichlorotetrafluoroethane (refrigerant)

CClF3

chlorotrifluoromethane [Freon 13 (refrigerant)]

CCRP

– Clark Center Recreation Park
– Comprehensive Classification Review Program

CCLR

cooling collector load ratio

CCI

– Canine Companions for Independence
– Controlled Cryptographic Item

CCMES

Construction Cost Management Estimating System (USAF roof program)

CCMHP

continuously capacity modulated heat pump

CCOP

Carnot coefficient of performance

CCP

– cast copolymer propylene
– Clean Coal Program

CCPD

charge-coupled photodiode device

CCR

central control room

CDL VII

Construction Demolition Landfill VII

CCDS

Consultative Committee for the Definition of the Second

CCDIS

charge-coupled device imaging spectrometer

CF4

– carbon tetrachloride
– tetrafluoromethane [Freon 14 (refrigerant)]

CCDM

Consultative Committee for the Definition of the Meter

CCD

– charge-coupled device (camera)
– conceptual core design
– configuration control drawing

CCCTF

Core Conduction Cooldown Test Facility (MHTGR)

CEMS

– continuous emissions monitoring system
– conversion electron MÖssbauerspectroscopy

CCl2F2

dichlorodifluoromethane [Freon 12 (refrigerant)]

CDM Federal

CDM Federal Programs Corporation

CCIX

continuous countercurrent ion exchange

CCE

– Center for Continuing Education
– Consultative Committee for Electricity

CCEDS

Configuration Control Equipment Data Sheet

CCEHRP

Committee to Coordinate Environmental Health-Related Programs (PHS)

CCF

– Central Control Facility
– common cause failure
– Corrosion Control Facility (USAF)

CCGT

closed-cycle gas turbine

CCGV

Corps Command Group Vehicle (U.S. Army)

CCl4

carbon tetrachloride

CCC

– central control center
– central control computer
– combustible cartridge case (munitions)
– commercial cylindrical chamber
– communication and control center

CDI

calculated daily intake

CDA

Copper Development Association

CDB

Characteristics Data Base

CDC

– Centers for Disease Control
– commercial deployment contractor

CDIAC

Carbon Dioxide Information Analysis Center

CDDB

Central Demand Data Base

CDEP

Cooperative Development Energy Program

CD-ROM

compact disc, read-only memory

CDH

Colorado Department of Health

CDD

cooling degree-day

CCS

Center for Computational Sciences

CCl3F

trichlorofluoromethane (refrigerant)

CDIARP

Carbon Dioxide Information Analyses and Research Program

CDL

chemical double layer

CDIC

Carbon Dioxide Information Center

CDIF

Component Development and Integration Facility

CDL VII

Construction Demolition Landfill VII

CDF

Cumulative Distributive Function

CCWE

constituent concentrations in waste extract

CCTP

Clean Coal Technology Program

CCTF

Cylindrical Core Test Facility (Japan)

CDE

collective dose equivalent

CCTDP

Clean Coal Technology Demonstration Program (DOE)

CD/NSWC

Carderock Division, Naval Surface Warfare Center (formerly DTRC)

CCU

– central control unit
– communications control unit
– Consultative Committee for Units

CCV

control combustion Venturi

CCTR

Center for Collaborative Technologies Research [now known as Collaborative Technologies Research Center (CTRC)]

CCW

component cooling water

CCTV

closed-circuit television

CCWF

Central Chilled Water Facility

CCT

– Clean Coal Technology
– comfort cooling tower

CCWG

Configuration Control Working Group

cd

candela

Cd

cadmium (element, Z = 48)

CD

– calibration drift
– Certificate of Disposal
– Chemistry Division (ORNL)
– Civil Defense
– clearance document
– compact disc

DMBA

dimethylbenzanthracene

DMAG

Data Management and Analysis Group

DMC

– decontamination maintenance cell
– document management center

DMBS

Direct Manual Braille Slate

DMD

directive management document (DOE)

DME

– dimethyl ether
– Distributed Management Environment (computer technology)
– dropping mercury electrode

DMEL

de minimis exemption level

DMG

Data Methods Group

DMIC

Defense Metals Information Center (BMI)

DMA

– direct memory access (computer term)
– Division of Military Applications

DMM

digital multimeter

DML

data manipulation language

DMETEG

dimethyl ether of tetraethylene glycol

DLA

Defense Logistics Agency

DOE-NP

U.S. Department of Energy-New Production Reactors

DMR

– discharge monitoring report
– Document Modification Request

DISSPLA

Display Integrated Software System and Plotting Language

DITY

do it yourself (DOD)

dJ/da

ductile tearing resistance

DIY

do-it-yourself

DL

design load

DM6TP

Data Management 6 Transaction Processing

DLC

– dedicated loop controller
– direct load control

DLD

dark line defect

DLLs

dynamic linked libraries

DLM

disordered local moment

dm

decimeter

DM

– deep monitoring (wells)
– design memo
– dissolved mercury

DKD

double-crystal diffraction

DOE-BES

U.S. Department of Energy-Basic Energy Sciences

DOE-ID

U.S. Department of Energy-Idaho Falls Operations Office

DO

– development opportunity (DPR)
– dissolved oxygen

DOC

– dissolved organic carbon
– Division of Classification (DOE)
– U.S. Department of Commerce

DOD

U.S. Department of Defense

DOE

U.S. Department of Energy

DNR

Department of Natural Resources

DOE-ALO

U.S. Department of Energy, Albuquerque Operations Office (formerly Albuquerque Field Office)

DNNP

Denali National Park and Preserve

DOE-DP

U.S. Department of Energy Defense Programs

DOE-EM

U.S. Department of Energy Environmental Management (OTD)

DOE-ER

– U.S. Department of Energy-Energy Research
– U.S. Department of Energy Environmental Restoraton

DOE-HQ

U.S. Department of Energy Headquarters

DOE-NE

U.S. Department of Energy Nuclear Energy

DOE-ORO

U.S. Department of Energy, Oak Ridge Operations Office (formerly Oak Ridge Field Office)

DOE/RW

Office of Civilian Radioactive Waste Management (DOE) (also OCRWM; also RW)

DOE-SR

U.S. Department of Energy-Savannah River Operations Office

DMS

– Disassembly and Special Materials
– Division of Materials Sciences (DOE)

DMSO

dimethyl sulfoxide

DMT

dedicated microprocessor tester

DMU

Directives Management Unit (IMS)

DMW

demineralized water

DNT

dinitrotoluene

DNAP

Division of Natural Areas and Preserves (state of Ohio)

DMRHF

Dry Materials Receiving and Handling Facility

DNAPL

dense nonaqueous-phase liquid

DNBR

– departure from nucleate boiling ratio
– departure from nucleate boiling regime

DNC

delayed neutron counting

dncm

dry normal cubic meter

DNFSB

Defense Nuclear Facilities Safety Board (DOE)

DNL

day/night weighted average noise level

DNA

– Defense Nuclear Agency
– deoxyribonucleic acid
– does not apply

DFBR

Demonstration Fast Breeder Reactor

det

determinant (math)

DETA

diethylenetriamine

DETEC

Defensive Technology Evaluation Code

DEW

directed-energy weapon

DF

– dark field
– decontamination factor
– diesel fuel

DF2

diesel fuel No. 2

DFS

– deactivation furnace system
– design feature for safety

DFAMS

Defense Fuels Automated Management System

DERM

doubly excited reluctance motor

DFD

data flow diagram

DFDP

Defense Facilities Decommissioning Program

DFG

(German equivalent of NSF)

DFM

marine diesel fuel

DFO

Director's Findings and Orders

DEMO

demonstration reactor

DFA

direct fluorescent antibody

DEO

director of emergency operations

Del.

Delaware (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

DELTA

Dynamic Ecological Land Tenure Analysis (ORNL model)

DEM

– Department of Environmental Management
– Department of Environmental Monitoring

DSI

Drillers Services, Inc.

DEM/VAL

demonstration and validation

DOELAP

U.S. Department of Energy Laboratory Accreditation Program

DES

– Data Encryption Standard
– draft environmental statement (see DEA, DEIS, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

DENI

Department of Electronic and Nuclear Instrumentation

DERP

U.S. Defense Department Environmental Restoration Program

DEP

Department of Environmental Protection

DEPO

division environmental protection officer

DEQ

Department of Environmental Quality

DEQE

Department of Environmental Quality Engineering

DER

Department of Environmental Regulation (Florida)

DERA

Defense Environmental Restoration Account

DFSA

Diesel Fuel Supply Agency

DEMT

director, Emergency Management Team

DIMS

Data and Information Management System

diag

diagonal (math)

diam

diameter

DIC

dissolved inorganic carbon

DIES

Design Information Exchange System

DIFR

disabling injury frequency rate (off the job)

DIII-D

Doublet III-D Tokamak

DFP

data facility product

DIMP

diisopropyl methylphosphonate

DHS

Department of Health Services (California)

DIO

Demonstrations and Improved Operations

DIP

dual in-line package

DIPRES

direct press spheroidized feed

DIPS

Dynamic Isotope Power System

DIS

– Disruption Impact Simulator
– Distributed Information Services (IMS)

DISA

Defense Information Systems Agency

dim

dimension (math)

DH

district heating

DFSD

division facility and site decommissioning

DFT

– density functional theory
– discrete Fourier transform

DFTE

Dimensional/Functional Test Equipment Facility

DFTS

decant/filtration test system

DFWD

Dissolver Feed House Watchdog Program

dg

decigram

DHW

domestic hot water

DGP

Data Gathering Program (BPA)

DHVL

decay heat vent line

DHC

district heating and cooling

DHCD

Data Highway Communications director

DHHS

U.S. Department of Health and Human Services (also HHS)

DHHX

district heating heat exchangers

DHI

data handler and interface

DHR

Daily Headquarters Report (NRC)

DISC

direct-injection stratified charge (engine)

DGM

dissolved gaseous mercury

DTPA

diethylenetriaminepentaacetic acid

DUA

deterministic uncertainty analyses

DTFT

discrete-time Fourier transform

DTIC

Defense Technical Information Center

DTL

Decommissioning Technology Laboratory (JAERI)

DTM

– digital trip module
– division training manager

DTNSRDC

David Taylor Naval Ship Research and Development Center

DTER

Drawing Transfer Engineering Release

DTP

– Defense Technology Program (of SDT)
– desktop publishing

DTE

– data terminal equipment
– demonstration, test, and evaluation
– dissipative trapped-electron

DTR

division technical reviewer

DTRC

David Taylor Research Center (now CD/NSWC)

DTS

deficiencies tracking system

DTST

Defensive Technologies Study Team

DTWP

Defense Transuranic Waste Program (DOE)

DSO

– Disassembly and Storage Organization
– division safety officer

DTO

– deuterium tritium oxygen
– director of technical operations

DSETAP

Decentralized Solar Energy Technology Assessment Program

DSRD

Data Systems Research and Development (Program, DSEO)

DSRS

Decision Systems Research Section

DSS

decision support system

DSSEA

Division of Site Safety and Environmental Analysis (NRC)

DSSF

double-shell slurry feed

DTF

Drop Test Facility

DSW

Directed Stockpile Work

DUOF

Depleted Uranium Oxide Facility

DT&E

demonstration, testing, and evaluation

DTA

– differential thermal analysis
– Dynamic Traffic Assignment

DTB

data transfer bus

DTBS

dynamic trip bus subsystem

DTC

– differentialthermocouple
– division telecommunications coordinator

DTD

document type definition

DST

double-shell tank

dyn

dyne (also D) [convert to SI: newton (N)]

DU

depleted uranium

DWS

– Directed Stockpile Work
– drinking water standard

DWT

drop weight

DWTM

Office of Defense Waste and Transportation Management (DOE)

DX

direct expansion

DXGC

direct expansion ground coil

DWPF

defense waste processing facility

DYMCAS

Dynamic Special Nuclear Materials Control and Accountability System

DWMP

Defense Waste Management Plan

°C

degrees Celsius (Celsius scale was formerly called centigrade)

°F

degrees Fahrenheit [convert to SI: degrees Celsius (°C) or kelvins (K)]

DEIS

– Dielectric and Electrical Insulation Society
– draft environmental impact statement (see DEA, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

DBM

data base management

°R

– degrees Rankine
– degrees Reaumur

ΔP

differential pressure (also dP and D/P)

Dy

dysprosium (element, Z = 66)

DVM

distributed velocity method

DUSA

Designated Unclassified Subject Area

DUT

device under test

DUV

deep ultraviolet

DUVAS

Derivative Ultraviolet Absorption Spectroscopy

DUVPL

deep ultraviolet projection lithography

DV

– Denver Support Office (DOE)
– digital video

DWPL

Drinking Water Priority List

DVI

digital video interface

DSM

– demand-side management
– Disassembly and Special Materials

DVP

Data Validation Project (Energy Division)

DWBA

distorted-wave Born approximation

DWBM

Office of Defense Waste Byproducts Management

DWER

defense waste and environmental restoration

DWIA

distorted-wave impulse approximation

DWM

Division of Waste Management (DOE)

DVD

digital versatile disk

DPI

deuterium pellet injector

DPPR

Development, Planning, and Performance Review (formerly PPR)

DPC

– Domestic Policy Council
– Duke Power Company

DPDMO

Defense Property Disposal Management Office

DPE

demilitarization protection ensemble

DPEIS

draft programmatic environmental impact statement (see DEA, DEIS, DES, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

DPG

Document Preparation Guide

dpa

displacements per atom

DPH

diamond-pyramid hardness (test) ("dph" is preferred)

DP

– data processing
– direct procedure
– discipline procedure
– defense program
– Office of Defense Programs (DOE)

dpm

disintegrations per minute

DPM

– digital panel meter
– direct procurement method

DPMA

Data Processing Management Association

DPMM

Division of Production and Materials Management (DOE)

DPMS

– differential pressure measurement system
– direct-probe mass spectrometer

DSP

digital signal processing

dph

diamond-pyramid hardness (test) (preferred over "DPH")

DOP

dioctyl phthalate

DOEOA

Department of Energy Organization Act

DOER

Daily Operating Events Report (NRC)

DOF

– degree(s) of freedom
– depth of field

DOG

dissolver off-gas

DOI

U.S. Department of the Interior

DOJ

U.S. Department of Justice

DPAD

differential perturbed angular distribution

DOM

– dissolved organic macromolecules
– dissolved organic material

DPR

Development Planning and Review (Committee)

DOR

direct oxide reduction

DOS

– U.S. Department of State
– disk operating system

DOSAR

Dosimetry Applications Research (Group, HASRD)

DOT

U.S. Department of Transportation

doz

dozen

dP

differential pressure (also ΔP and D/P)

DOL

U.S. Department of Labor

dscm

dry standard cubic meter

DPPD

diphenyl p-phenylene diamide

DRP

Demonstration Reprocessing Plant

DRS

Daresbury Recoil Spectrometer (U.K. transferred title to DOE for HRIBF at ORNL)

DRTU

distribution remote terminal unit

DS

Dallas Support Office (DOE)

DSA

– Decision Systems Analysis (a company name)
– Documented Safety Analysis
– Doppler shift attenuation

DRMO

Defense Reutilization and Marketing Office

DSC

differential scanning calorimetry

DRM

– Data Resource Management (USN)
– dynamic resonance method
– Dynamic Retention Model

DSD

Decontamination Services Department (K-25)

DSDP

deep-sea drilling projects

DSEO

Data Systems Engineering Organization (see DSRD)

DSG

dispersed storage and generation

DSIR

Department of Scientific and Industrial Research

DSITMS

direct-sampling ion-trap mass spectrometry

DSACS

Defense Standard Ammunition Computer System (U.S. Army)

DRC

– density reactivity coefficient
– Director's Review Committee (ORNL)
– division records coordinator

DPS

dynamic pore size

DPX

DNA-protein cross-links

DQO

data quality objective

DQP

Data Quality Program (Environmental Restoration)

DR

– decay ratio
– deviation request

DRAM

dynamic random access memory

DRN

Digital Release Notes

DRBC

Delaware River Basin Commission

DOEM

Department of Energy Manual

DRDF

Director's Research and Development Fund (ORNL)

DRE

destruction and removal efficiency

DREF

dose rate effectiveness factor

DRG

diagnosis-related group

DRI

Data Resources, Inc.

DRL

Dynamics Research Laboratory (K-25 Site)

DRB

– Demonstrated Reserve Base
– dual-reflective baffle

DAVACS

DOE Automated Visitor Access Control System

DBP

dibutylphosphate

DAM

Demand Assessment Model

DAMA

Demand-Activated Manufacturing Architecture

DAP

Diallyl phthalate

DAPC

Division of Air Pollution Control (Tennessee)

DAR

Design Authority Representative

DARA

disposal area remedial action

DARCOM

Development and Readiness Command (U.S. Army)

DARE

Demand and Resource Evaluation (HRCP program)

DARPA

Defense Advanced Research Projects Agency

DAS

– data acquisition system
– Data and Analysis Section
– disturbance analysis system

DAIN

Department of the Army Information Network

DATS

Drill and Transfer System

DAF/WCTT

DOE Added Factor Tax/Waiver Criteria Task Team (WFO)

DAW

– dispense as written
– dry active waste

dB

decibel

DB

– data base (Although many authors prefer "database," most dictionaries still list it as two words.)
– Davis-Bacon (Act of 1931)
– diversion box
– dragbody
– dry-bulb (temperature)

DB/MP

data base management plan

dB(A) or dBA

decibels as recorded on the A-weighted scale of a standard sound level meter

DBA

– Data Base Administrator (U.S. Army)
– Davis-Bacon Act of 1931
– design-basis accident
– dibasic acid

DBC

d-bundle converter

DBE

– design-basis earthquake
– design-basis event
– dibasic ester

DBF

design-basis fire

DBFL

design-basis flood

dbh

diameter at breast height

dBm

decibels greater than (or less than) 1 mW

DASCAR

Data Acquisition System for Crash Avoidance Research

D/H

deuterium/hydrogen (ratio)

DEGB

double-ended guillotine pipe break

DBMS

data base management system

DUP

Depleted Uranium Production

DCRMC

Desktop Computing Resource Management Committee

3-D

three-dimensional

d

– day
– deuterium ("D" is preferred; also 2H, H2, or H2)

D

– debye
– deuterium (preferred over "d"; also 2H, H2, or H2)
– dyne (also dyn) [convert to SI: newton (N)]

D.C.

District of Columbia [use after (city of) Washingtonexcept in ZIP code addresses]

D.F.

degrees of freedom (of, e.g., error term) (math)

D.S.

Doctor of Science

D-D

deuterium-deuterium (also DD)

DAIS

Database Access Integration Services (EPRI)

D/A

digital-to-analog

D2PC

an atmospheric dispersion model computer program

D/P

differential pressure (also ΔP and dP)

D&D

– decontamination and decommissioning
– decontamination and dismantlement

D&I

– disassembly and inspection
– dosimetry and instrumentation

D&T

development and technology

D2O

heavy water

DA

– Dayton Area Office (DOE)
– U.S. Department of the Army
– Deposit Administration
– design agency

DAA

Defense Authorization Act (1993)

DAAC

Data Center for Atmospheric Trace Gas Cycling

DAC

– Daily Administrative Check
– derived air concentration
– design analysis and calculation
– digital-to-analog converter
– distribution automation and control
– dimethylacetylenedicarboxylate

DACE

design and computational experiments

DACS

data acquisition and control system

DAF

– dilution/attenuation factor
– DOE Added Factor Tax [no longer in use; use FAC (Federal Administrative Charge)]

D-T

deuterium-tritium (also DT)

DE

– Delaware (use only with ZIP code addresses)
– dose equivalent
– drum equivalent

DD&D

Defense Decontamination and Decommissioning Program

DDACS

Distributed Data Acquisition and Control System

DDC

distribution dispatch center

DDCE

design duty cycle event

DDD

direct distance dialing

DDE

dynamic data exchange

DDG

distillers' dried grains

DDGS

distillers' dried grains with solubles

DDN

Defense Data Network

DDR

decontamination, disposal, and recycle

DDRP

Direct/Delayed Response Project

DD/NSWC

Dahlgren Division, Naval Surface Warfare Center, Coastal Systems Station (formerly NCSC)

DDT

dichlorodiphenyl-trichloroethane

dE/dt

rate of evaporation

DEA

– Directorate of Housing (U.S. Army)
– draft environmental assessment (see DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– Drug Enforcement Agency

DEAR

U.S. Department of Energy Acquisition Regulation

DEC

Digital Equipment Corporation

DeCAS

Defense Contracts Administration Service

DECnet

Digital Equipment Corporation network

DECAT

Driver Energy Conservation Awareness Training (Program)

DECON

(a nuclear plant decommissioning method)

DBS

Direct Braille Slate

D&R

demolition and removal

DEFCON

Defense Readiness Condition

deg

degree (use when unit is not preceded by number)

DEFRA

Deficit Reduction Act of 1984

DDS

– development direct support
– Document Delivery Service (libraries)

DCCB

Design Configuration Control Board

DBTS

ductile-to-brittle transition strain rate

DBT

– design-basis tornado
– design-basis threat

DBW

design-basis wind

dc

direct current

DEAA

Data Extraction and Analysis Group

DD

– deuterium-deuterium (also D-D)
– division director

DC

– data concentrator (computer)
– derivative classifier
– design criteria
– direct cycle
– distribution coefficient
– District of Columbia (use only with ZIP code addresses)

DCA

– 1,1-dichloroethene
– Defense Communications Agency
– dichloroacetylene

DBTT

ductile-to-brittle transition temperature

DCC

data concentrator and controller

DCE

– data communications equipment
– dichloroethylene
– Distributed Computing Environment (computer technology)

DCF

dose conversion factor

DCG

derived concentration guideline

DCHP

dicesium hexachloroplutanate

DCP-OES

direct coupled plasma-optical emission spectroscopy

DCR

– distribution control receiver
– division classification representative

DCAA

Defense Contractors Audit Agency

DCL

Digital Command Language (VMS)

DCPD

dicyclopentadiene

DCRS

DECsystem Capacity Replacement System

DCRDR

detailed control room design review

DCPA

Defense Civil Preparedness Agency (DOD)

DCS

distributed control system

DCSO

division computer security officer

DCP

Drug Control Program (WSAP)

DCT

discrete cosine transform

DCOE

Domestic Crude Oil Entitlement

DCM

design change memorandum

EPL

enhanced photoluminescence

EPG

emergency procedure guideline

EPF

Environmental Protection Facility

EPI

– environmental priorities initiative
– Environmental Protection Initiative

EPIB

Environmental Protection Information Bulletin

EPGA

effective peak ground acceleration

EPIC

– Engineering Physics Information Center (ORNL)
– Engineering Projects Information Center
– Environmental Management Program Integrating Contractor [now Incentive Task Order (ITO)]

EPIDS

Enlisted Personnel Information Delivery System (USMC)

EPIP

Environmental Protection Implementation Plan

EPLD

electrically programmable logic device

EPM

Environmental Protection Manual

EPO

environmental protection officer

EPA

U.S. Environmental Protection Agency (preferred over "USEPA")

EPMD

Engineering Physics and Mathematics Division (ORNL)

EPNL

effective perceived noise levels

EPN

external point name

EPIDSP

Electronic Publishing and Internet Data Servers Project (IMS)

EPA-V

U.S. Environmental Protection Agency, Region V

EOLMA

Ernest Orlando Lawrence Memorial Award (DOE)

EOP

– emergency operating procedure
– Emission Offset Policy
– Equipment Operating Procedure

ERAB

Energy Research Advisory Board (DOE)

EPP

– Employee Protection Program (DOE)
– Energy Policy and Planning
– Energy Policy Project
– Environmental Protection Program

EOPTS

emergency operating procedure tracking system

EOR

enhanced oil recovery

EOY

end of year

EPACT

Energy Policy Act of 1992

EP&M

Engineering Physics and Mathematics

EPEDS

Energy Price and Expenditure Data System

EPCA

Energy Policy and Conservation Act of 1975

EPCO

Enrichment Project Coordination Office

EPCP

Equivalent Public-Cost Contract Price

EPCRA

– Emergency Planning and Community Right-to-Know Act of 1986 (SARA Title III) (40 CFR Pts. 350, 355, 370, and 372) (see CERCLA, SARA, and SITE)
– Emergency Planning and Community Right-to-Know Agency

EPD

– Emergency Planning District
– Emergency Preparedness Department (ORNL)
– Energy Programs Division

EPDC

Energy Policy Development and Conservation

EPDF

Electronic Publishing Demonstration Facility (see ADF)

EPDM

– ethylene-propylene-diene monomer
– ethylene-propylene terpolymer (also EPT)

EP

– electronic publisher
– electronic publishing
– electrophotographic
– emergency preparedness
– Employment Program
– Energy Policy
– engineering procedure
– environmental project
– environmental protection
– equilibrium partitioning
– extraction procedure (RCRA; EPA)

ERD

– Ecological Research Division (DOE OHER)
– Environmental Restoration Division (ORNL)

ERA

– ecological risk assessment
– Economic Regulatory Administration (DOE)
– expedited response action

ER

– electrorefining
– Energy-Related Health Research Laboratory
– energy research
– engineering release
– environmental report (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– environmental restoration
– Environmental Restoration (Program)
– Office of Energy Research
– Office of Environmental Restoration (DOE)

ER&D

energy research and development

ER&WM

environmental restoration and waste management

ERAA

emergency readiness assurance appraisal

ERAP

– Emergency Readiness Assurance Plan
– Environmental Remedial Action Project

ERC

– Earth Resources Corporation
– Electric Research Council
– emergency relocation center
– Emergency Response Center

equiv

equivalent

ERCS

emergency response cleanup services

EQUEL/CTM

Embedded Query Language written in C (trademark of Relational Technology, Inc.)

ERDA

U.S. Energy Research and Development Administration (succeeded AEC; now DOE)

ERDAM

Energy Research and Development Administration Manual (now Department of Energy Manual)

ERDIS

Environmental Restoration Document Information System

ERDMC

Environmental Restoration Document Management Center (ERWM)

ERDP

Environmental Review and Documentation Program

ERDS

Environmental Review and Documentation System

EOL

– end of life
– end of line

EM

– electromagnetic
– engineering mechanics
– environmental management
– environmental monitoring
– event manager

ERCP

Emergency Response Concept Plan

EPT

ethylene-propylene terpolymer (also EPDM)

EPPD

Energy Planning and Policy Development

EPPIP

Environmental Protection Program Implementation Plan

EPR

– electrochemical potentiokinetic reactivation
– electron paramagnetic resonance
– ethylene propylene rubber
– experimental power reactor

EPRI

Electric Power Research Institute (Palo Alto, California)

EPROM

– electronically programmable read-only memory
– erasable, programmable, read-only memory

EPS

– Encapsulated PostScript
– experiment protection subsystem
– expanded polystyrene

EPSCOR

Experimental Program to Stimulate Competitive Research (NSF)

Er

erbium (element, Z = 68)

EPSSC

Ecological and Physical Sciences Study Center

EPPC

Edge Physics and Particle Control

EPTT

Extraction Procedure Toxicity Test (replaced by TCLP)

EPW

– electron plasma wave
– end-point weighing/weight

EPZ

emergency planning zone

EPZGA

effective peak zero ground acceleration

EQ

environmental qualification

Eq(s).

Equation(s) (use only when followed by number)

EQAB

Environmental Quality Advisory Board (Oak Ridge)

EQUELTM.

Embedded Query Language (trademark of Relational Technology, Inc.)

EPSEP

Environmental Protection, Safety, and Emergency Planning (Office) (DOE)

EMC

– electromagnetic compatibility
– environmental monitoring and compliance
– Environmental Monitoring Center (ORNL)

EMI

electromagnetic interference

ELSS

Environmental, Life, and Social Sciences

ESFS

engineered safeguards feature system

EM/EH

Environmental Management/Environmental Health

erf

error function (math)

EMA

Emergency Management Agency

EMAC

Emergency Management Advisory Committee

ELMIRD

Electromagnetic Liquid Metal Inclusion Removal Device

EMAT

electromagnetic acoustic transducer

ELI

Environmental Law Institute

EMCASS

Expert Motor Carrier Selection System

EMCML

Electromagnetic Countermeasures Launcher

EMCOM

Environmental Management Career Opportunities for Minorities (DOE program)

EMCS

– energy monitoring and control system
– energy management control system

EMD

– Emergency Management Department (OLP)
– Environmental Management Division

EMEF

Environmental Management and Enrichment Facilities (note that the correct abbreviation is EMEF, not EM&EF)

emf

electromotive force

EM&CD

Environmental Monitoring and Compliance Department

EMAP

Environmental Monitoring and Assessment Program

EIT

Engineer-in-Training

EI

exposure index

EIA

– Economic Impact Area
– Electric Industries Associaton
– Electronic Industries Association
– Energy Information Administration (DOE)
– environmental impact assessment (see DEA, DEIS, DES, DPEIS, EA, EAW, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

EIAP

environmental impact analysis process (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

EIC

– Energy Information Center
– Environmental Information Center (DOE)

EID

Environmental Impacts Division (DOE)

EIL

environmental impairment liability

EINS

Electronic Information Network System

ELS

Eastern Lake Survey

EIS

– Economic Impact Studies (Energy Division)
– Electronic Imaging Section (ORNL Photography)
– environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– Equipment and Inspection Scheduler
– equipment interface system

EMIC

Environmental Mutagen Information Center

EIVR

– Engineering Information Visit Request
– exchange of information through visits and reports

EJ

exajoule

EK

Eklutna Project Office (DOE)

EKG

electrocardiogram

EKMA

empirical kinetic modeling approach

ELA

Enterprise License Agreement

ELCAP

End-Use Load and Consumer Assessment Program

ELF

extremely low frequency

EIR

– economic impact region
– electric input ratio
– exposure information report

ENV

equivalent noise voltage

EMF

– electromagnetic field
– electromagnetic force
– Electronics Metal Finishing Corporation
– Electron Microscope Facility (UT)

ENC

– Exxon Nuclear Corporation (Richland, Washington)
– equivalent noise current

ENI

Electro Nucleonics, Inc.

ENN

Emergency Notification Network

EnRI

Environmental Retraining and Internship (program)

ENS

Emergency Notification System

ENSO

El Nino/southern oscillation

emu

electromagnetic units ("EMU" is preferred; convert to SI)

ENTOMB

(a nuclear plant decommissioning method)

EMTP

electromagnetic transience program

ENVPD

Environmental Protection Division

EO

– environmental officer
– equal opportunity
– Executive Order

EOBS

Enrichment Operations and Business Services

EOC

– Emergency Operations Center
– end of cycle

EOCN

Emergency Operations Communications Network

EOD

– explosive ordnance disposal
– Explosives Ordnance Depot

EODT

explosive ordnance disposal technology

EOF

– emergency operations facility
– end of file
– end of frame

ENTC

Eastern Nuclear Training Center

EMPO

Emergency Management Program Organization

EMInS

Emergency Management Information System

EMIS

– Energy Management Information System
– Engineering Management Information System
– Enrichment Marketing Information System

EMJR

electronic maintenance job request

EML

Environmental Measurements Laboratory (New York) (DOE)

EML(P)

electromagnetic launch pulse

EMM

electromechanical manipulator

EMMIS

Environmental Monitoring Management Information System

EMU

– electromagnetic units (preferred over "emu"; convert to SI as follows)
  • EMU of capacitance [convert to farad (F)]
  • EMU of current [convert to ampere (A)]
  • EMU of electric potential [convert to volt (V)]
  • EMU of inductance [convert to henry (H)]
  • EMU of resistance [convert to ohm (Ω)]
– Energy Management and Utilization Division (of EPRI)

EMPD

Engineering Physics and Mathematics Division

EOI

expression of interest

EMRA

Electronics Materiel Readiness Activity

EMS

– Emergency Management System
– Emergency Medical Services
– energy management system
– Environmental Management System
– Environmental Mutagen Society
– Essential Multiplexing System
– ethyl methanesulfonate

EMSA

Electron Microscopy Society of America

EMSC

Eisenhower Mathematics/Science Consortium (AEL)

EMSL

Environmental Monitoring and Support Laboratory

EMST

enhanced multichannel tracking

EMSU

environmental monitoring systems upgrade

EMT

– electrical metallic tubing
– electromagnetic technology
– Emergency Management Team
– Emergency Medical Team
– emergency medical technician
– energy management technology

EMP

– electromagnetic pulse
– Environmental Management Programs (organization)
– environmental monitoring plan

ETIS

Environmental Technology Information Services (HAZWRAP)

ETCHPS

East Tennessee Chapter Health Physics Society

ETD

– Engineering Technology Division
– expected time of departure

ETEC

Energy Technology Engineering Center

ETF

– Engineered Test Facility
– Equipment Test Facility

ETFE

ethyl-tetrahydro-furfuryl ether

ETGS

East Tennessee Geological Society

ETI

Education Technology Institute

ETPMI

East Tennessee Project Management Institute

ETIL

East Tennessee Indian League

ETBE

ethyltertiary butyl ether

ETJ

extraterritorial jurisdiction

ETMIUG

East Tennessee MapInfo Users Group

ETMPA

East Tennessee Minority Professionals Association

ETMSDG

East Tennessee Mass Spectrometry Discussion Group

ETNG

East Tennessee Natural Gas

EtO

ethylene oxide

ESFAS

engineered safety feature actuation system

ETIC

Environmental Teratology Information Center

ESWMO

Energy Systems Waste Management Operations

ESRM

Energy Systems Records Manager

ESS

Energy Systems Standard

EST

– Edwards Systems Technology
– Energy Systems Toastmasters

estd

estimated

ESTD

– Energy Systems Telecommunications Department
– Energy Systems Training and Development (ESHR)

ESTSC

Energy Science and Technology Software Center

esu

electrostatic units ("ESU" is preferred; convert to SI)

ETCAWIS

East Tennessee Chapter of the Association for Women in Science

ESV

Energy Systems Values

ETC

– Energy Technology Center
– environmental test chamber

ESWP

Energy Systems Wellness Program

ET

evapotranspiration

ET&I

– Engineering, Test, and Inspection (Organization, K-25)
– equipment, testing, and inspection

et al.

et alii (and others)

et seq.

and the following

ETA

– engagement training aid
– estimated time of arrival

ETAC

Enrichment Technology Applications Center (became ATD; now ETD)

ETPCUG

East Tennessee Personal Computer Users Group

ESU

electrostatic units (preferred over "esu"; convert to SI as follows)
  • ESU of capacitance [convert to farad (F)]
  • ESU of current [convert to ampere (A)]
  • ESU of electric potential [convert to volt (V)]
  • ESU of inductance [convert to henry (H)]
  • ESU of resistance [convert to ohm (Ω)]

EWICS

European Workshop for Industrial Computer Systems

Eurodif

European Gaseous Diffusion Uranium Enrichment Consortium

EUT

equipment under test

EUTUG

End-User Tool User Group

EV

electric vehicle

eV

electron volt [convert to SI: joule (J); sometimes "eV" is accepted]

EVA

extra-vehicular activity

EWB

– Emergency Waste Basin
– etched wiring board

ETP

– Emergency Technology Program
– Environmental Technology Programs

EWFP

Engineered Waste Form Program (ORNL)

EURATOM

European Atomic Energy Community

EWO

Electronic Warfare Officer (DOD)

EWWW

External World Wide Web

EXAFS

extended X-ray absorption fine structure

EXELFS

extended electron energy loss fine structure

exp

– experiment
– experimental
– exponential function (math)

EXPS

extruded polystyrene

EZ

Exclusion Zone

EWDAA

Energy and Water Development Appropriations Act

eu

entropy unit

ETR

Engineering Test Reactor

ETRA

East Tennessee Resource Agency

ETRC

Engineering Test Reactor Critical (Facility)

ETS

– Emergency Telecommunications Service
– environmental tobacco smoke

ETSA

electron transport systemactivity

ETSC

Emergency Technical Services Corporation

ETSTAC

East Tennessee Special Technology Access Center

EURO

Enriched Uranium Recovery Operations

ETV

electrothermal vaporization

EURI

Enriched Uranium Recovery Improvement (Program)

Eu

europium (element, Z = 63)

EU

enriched uranium

EUCF

Enriched Uranium Conversion Facility

EUCFM

Enriched Uranium Conversion Facility Modification

EUDAT

End-User Data Access Tools (OSIM committee)

EUI

extended user interface

EUO

Enriched Uranium Operations

ESR

– electron spin resonance
– environmental surveillance report (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

ETTP

East Tennessee Technology Park (formerly Oak Ridge K-25 Site)

ES&H

environment, safety, and health (preferred over "EH&S" and "EHS")

ERRAIS

Environmental Restoration and Remedial Action Information System

ERRS

Efficiency and Renewables Research Section

ERS

– Economic Research Service (USDA)
– Emergency Radio System
– Energy Research Section (CTD)

ERTA

Economic Recovery Tax Act of 1981

ERWM

Environmental Restoration and Waste Management (Program)

ERWMP

Environmental Restoration and Waste Management Programs

ERWMTD

Environmental Restoration and Waste Management Technology Development

ESRI

Environmental Systems Research Institute

ES

– Econometric Society
– emission spectrometry
– engineering specification
– engineering standard
– Enhanced Surveillance (Initiative)

ERPG

Emergency Response Planning Guideline

ES&HC

Environment, Safety, and Health Compliance

ESA

– Ecological Society of America
– Endangered Species Act of 1973
– Energy Security Act of 1980
– Enterprise Systems Architecture
– Entomological Society of America
– Environmental and Safety Activities (ORNL organizaton)
– European Space Agency

ESAAB

Energy Systems Acquisition Advisory Board

ESAF

Energy Systems Award Fee (DOE)

ESAMS

Electronic Site Action Management System

ESAP

Energy Systems Analytical Projects (office)

ESAR

Energy Systems acquisition review

Es

einsteinium (element, Z = 99)

ERLE

excess research laboratory equipment

erfc

error function complement (math)

ERFDADS

emergency response facility data acquisition and display system

ERFU

– Environmental Restoration and Facilities Update
– Environmental Restoration and Facilities Upgrade (program)

ERFCS

emergency response facility computer system

EHX

emergency heat exchanger

ERIP

Energy-Related Inventions Program [DOE/DOC (NBS)]

ERIS

– economic resource impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– Emergency Resources Identification System
– Exoatmospheric Reentry Interceptor System

ERR

Efficiency and Renewables Research Section (Energy Division, ORNL)

ERL

emergency response level

ERPS

Environmental Restoration Program Support (WMRAD)

ERM

– Electric Research and Management (a company name)
– environmental and radiological monitoring

ERMA

Environmental Restoration Monitoring and Assessment Program

ERMC

Environmental Restoration Management Contractor

erms

electron root mean square

ERO

– Emergency Response Organization
– Environmental Response Organization
– Environmental Restoration Organization

EROM

electronically alterable read-only memory

ERP

Environmental Restoration Program

ESCA

electron spectroscopy for chemical analysis (also XPS)

ERISA

Early Retirement Income Security Act of 1974

ESLIMS

Energy Systems Laboratory Information Management System

ESARG

Energy Systems Administrative Reference Guide

ESHCH

Environmental, Safety, and Health Concerns Hotline (ORNL)

ESHECRS

Employee Safety, Health, and Environmental Concerns Response System

ESHQC

Environment, Safety, Health, and Quality Committee

ESHR

Energy Systems Human Resources

ESHU

environmental, safety, and health upgrade

ESIC

Ecological Sciences Information System

ESH&QA

environmental, safety, health, and quality assurance

ESLI

Elementary Science Leadership Institute (NSF)

ESH

environment, safety, and health ("ES&H" is preferred over "ESH" and "EH&S")

ESMP

Energy Systems Mentor Program

ESN

Energy Systems News

ESnet

Energy Systems Network

ESO

Engineering Service Order

ESP

– earth-surface potential
– electrostatic precipitation
– Energy Systems Procedure
– Enrichment Safeguards Program
– environmental sampling procedure
– Environmental Surveillance Procedure
– Exploratory Studies Program (ORNL) (now LDRDP)

ESPIP

Efficient Separations and Processing Integrated Program (DOE)

ESQIS

Energy Systems Quality Information System

ERF

emergency response facility

ESIF

Energy Systems Inventors Forum

ESEERCO

Empire State Electric Energy Research Corporation

ESRA

Envelope Systems Research Apparatus

ESCBA

escape self-contained breathing apparatus

ESCO

– energy service company
– Energy Systems Conference Office

ESD

– electrostatic discharge
– Environmental Sciences Division (ORNL)

ESDC

Environmental Sciences Division Complex

ESDI

enhanced small device interface

ESDS

Enclosed Space Detector System

ESHC

Environmental, Safety, and Health Compliance Directorate

ESECRP

Energy Systems Employee Concerns/Response Program

ESC

– Ecological Study Center
– Electrical Safety Committee

ESEGP

Energy Systems External Gopher Project

ESEO

Energy Systems Engineering Organization

ESF

– engineered safeguards feature
– engineered safety feature
– Engineering-Scale Facility
– Environmental Support Facility

ESFA

engineered safety feature actuation

ESFAC

engineered safety feature actuation cabinet

ESFC

Energy Systems Finance College

ESFSM

Energy Systems facility safety manager

ESG

– Environmental Sampling Group
– Executive Steering Group

ESE

Energy Systems Evaluation

EBS

– Elmo bumpy square
– Emergency Broadcasting System
– Emergency Broadcast Station (FEMA)
– Enrichment Business Services
– environmental baseline survey

ECR

– electron cyclotron resonance
– Employee Concerns Reporting (DOE-ORO)
– Engineering Change Request

ECA

energy conversion area

EC50

effective concentration for a specific response in 50% of a given population (see LC50, LCLO, LD50, and LDLO)

EC&A

Engineering Coordination and Analysis Section (CTD)

EC

– employee convenience (work schedule)
– Energy Concepts Company
– energy constant
– energy cost
– environmental compliance
– environmental control
– European Community
– evaporative cooling

EBWR

Experimental Boiling Water Reactor

EBTP

Elmo Bumpy Torus Proof of Principle

ECAD

electrical characterization and diagnostics

EBT

Elmo Bumpy Torus

ECAMP

Environmental Compliance Assessment and Management Program (USAF)

EBR-II

Experimental Breeder Reactor II

EBR

Experimental Breeder Reactor

EBIL

Electron Beam Injector Laboratory

EBE

evaluation basis earthquake

EBCA

U.S. Department of Energy Board of Contract Appeals

EBC

Existing Building Center (Energy Division, ORNL)

EBA

– evaluation basis audit
– Extended Batch Language

EB-I

electron beam separator (AVLIS)

EBT-S

Elmo Bumpy Torus-scale

ECIP

Energy Conservation Investment Program

ECPA

Electric Consumers Protection Act of 1986

ECP

– electron channeling pattern
– Employee Communications Program
– Employee Concerns Program
– engineering change proposal
– Environmental Compliance Program

ECOS

Environmental Compliance Online System (ORNL)

ECOR

estimate of cost and obligation requirements

ECOP

Energy Conservation Opportunity Program

ECO

energy conservation opportunity

ECMS

Employee Concerns Management System

ECAB

Elder Citizens Advisory Board (City of Oak Ridge)

ECL

– emitter control logic
– emitter-coupled logic

EATT

Evaluation and Technology Transfer (Energy Division, ORNL)

ECH

– electron cyclotronheating
– engine compartment heater

ECG

– electrochemical grinding
– Environmental Compliance Group

ECE

– electron-cyclotron emission
– Environmental Consulting Engineering (Knoxville)

ECD

– effective cutoff diameter
– electron capture detector

ECCS

emergency core cooling system

ECCP

Equivalent Cost Contract Price

ECC

– Eastman Chemical Company
– Emergency Control Center
– emergency core cooling
– Energy Conservation Coalition

ECAO

Environmental Criteria and Assessment Office (Cincinnati)

ECM

– electrochemical machining
– embedded cluster method

E-field

electric field

E&M

Engineering and Maintenance Division

E&HPD

Environmental and Health Protection Division (formed June 1988)

E&HCD

Environmental and Health Compliance Division

E&ET

Energy and Environmental Technologies (programs) (ORNL)

E/GNP

total energy divided by gross national product

E/D

encoder-to-digital

E/C

energy-to-cost ratio

EB

electron beam (also E-beam)

E-MAD

engine maintenance assembly and disassembly

E&SA

environmental and safety activity

E-CTFE

ethylene-chloro-trifluoroethylene

E-beam

electron beam (also EB)

E.M.

electromagnetic

e.g.

exempli gratia (for example) (use only in parentheses or footnotes, followed by a comma)

E

electric field

ERFIS

emergency response facility indication system

EHW

extremely hazardous waste

EB Weld NDE

Electron Beam Weld Nondestructive Examination

e-mail

electronic mail

EAL

emergency action level

EACT

Emergency Action and Coordination Team

EASC

Emergency Avoidance Solidification Campaign (ORNL)

EAS

Environmental Analysis Section (ESD)

EARS

– Electronic Authorization and Routing System
– Environmental Activities Reporting System

EARL

Environmental ALARA Review Letter

EARA

– Educational Assistance Reimbursement Application (form)
– Equipment Authorization ReviewActivity

EAR

environmental ALARA review

EAP

– Educational Assistance Program
– Employee Assistance Program

E&MT

Engineering and Manufacturing Technologies (programs) (ORNL)

EAM

– Environmental ALARA Memorandum
– exercise and monitoring

E&OSD

Environmental and Occupational Safety Division

EADS

Engineering Analysis and Design Synthesis

EAD

– electroacoustic dewatering
– environmental assessment determination

EAC

– Economic Adjustment Committee
– Employee Account Code
– Empowerment Assistance Council (IMS)
– Environmental Advisory Committee
– estimate at completion

EAAS

Environmental Analysis and Assessment Section

EAAR

Economists Allied for Arms Reduction

EA

environmental assessment (see DEA, DEIS, DES, DPEIS, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

E3

electromagnetic environmental effects

EAW

environmental assessment worksheet (see DEA, DEIS, DES, DPEIS, EA, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

EAO

Education Assistance Office

EEOAA

Equal Employment Opportunity/Affirmative Action

EFAB

Environmental Financial Advisory Board

EESC

Energy and Environment Study Conference

EES

– Electric Energy Systems
– Energy Extension Service (DOE)

EERS

elevated environmental risk summary

EERC

Energy and Environmental Response Center

EER

energy efficiency ratio

EEPROM

electrically erasable, programmable, read-only memory

EECA

Emergency Energy Conservation Act of 1979

EEOAC

Equal Employment Opportunity Advisory Council

EFPD

effective full power day

EEO/AA

Equal Employment Opportunity/Affirmative Action

EEO

Equal Employment Opportunity [Energy Systems organization now Office of Work Force Diversity (OWFD)]

EEMT

Energy Emergency Management Team

EEM

exercise evaluation methodology

EELS

electron energy loss spectral

EEI

– Edison Electric Institute
– Electrical Energy, Inc.

EEG

electroencephalogram

ehEEE

electromagnetic environmental effect

EEOC

Equal Employment Opportunity Commission

EH

– Environmental Health (DOE)
– environmental and health protection
– environmental and health site safety representative (DOE)
– Office of Environment, Safety, and Health (DOE-HQ)

EHPD

Environmental and Health Protection Division

EHS

extremely hazardous substance

EHV

extra-high voltage

EAB

– Energy Advisory Board
– exclusion area boundary

ECRH

electron cyclotron resonance heating

EHP

Office of Environmental and Health Protection (ORNL)

EHG

energy heat gain

EHD

electrohydrodynamic

EFCOG

Energy Facility Contractors Group

EH&S

environment, health, and safety (ES&H is preferred)

efg

electric field gradient

EGR

electrographic recorder

EGF

epidermal growth factor

EGCR

Experimental Gas-Cooled Reactor (obsolete)

EGCAS

Energy and Global Change Analysis Section

EGA

enhanced graphics adapter

EFPC

East Fork Poplar Creek

EFMV

estimated fair market value

EG

endoglucanase

EHC

electrohydraulic control

ECUT

Energy Conversion and Utilization Technologies

EDF

– Electricité de France
– Engineering Demonstration Facility (PNC, Japan)
– Environmental Defense Fund

EDE

effective dose equivalent

EDD

enforcement decision document

EDC

Engineering Design Center

EDB

ethylene dibromide

EDA/SQL

Enterprise Data Access/Structured Query Language

EDA

engineering design activity

ED

electrodialysis

EDF-III

Engineering Development Facility

ECW

essential cooling water

ed.

– edition [use when preceded by number (e.g., 1st ed.) in citations]
– editor or edited by (use in citations)

ECT

Environmental Control Technology

EEC

European Economic Community

EGC

equipment grounding conductor

ECRP

Employee Concerns/Response Program

ECSCK

entry control systems card key

ECS

– Employee Communication Survey

– Environmental Compliance Section (OECD)
– environmental control system

ECRS

Event Classification and Reporting System

ECRWP

East Chestnut Ridge Waste Pile

ECWS

essential cooling water system

EDPE

electronic data processing equipment

EDX

energy-dispersive X-ray analysis

EDXS

energy-dispersive X-ray spectroscopy

EDTA

– ethylene diamine tetra-acetic (acid)
– ethylenedinitrilotetraacetic acid

EE

– electrical engineering
– engineering evaluation
– equivalency evaluation

ED&C WSS

Engineering Design and Construction Work Smart Standards

EDG

emergency diesel generator

EE/CA

engineering evaluation/cost analysis

EDT

explosive detonation trench

EEA

Energy and Environmental Applications (Group of TSRS)

EDS

– energy-dispersive spectroscopy
– Engineering Development Section (CTD)

EDR

electric dispersion reactor

EDGe

Engineering, Design, and Geosciences Group

EDI

Electronic Data Interchange

EDIAP

Energy Division Information Analysis Program

EDMS

Electronic Document Management System

EEAS

Energy and Economic Analysis Section (Energy Division, ORNL)

EDM

electrodischarge machine

EDP

– electronic data point
– electronic data processing
– engineering development plan

EDIS

Engineering Design Information System

FMEA

failure mode and effects analysis

FLS

first-line supervisor

FMECAs

failure-modes effects and criticality analyses

FM

– facility manager
– Factory Mutual System
– field manager
– frequency modulation

FMECA

failure-mode effect and criticality analysis

FLRA

Federal Labor Relations Authority

FMD

Facilities Management Division (formerly MUD)

FLC

Federal Laboratory Consortium

FMCS

Federal Mediation and Conciliation Service

Fm

fermium (element, Z = 100)

FLPMA

Federal Land Policy and Management Act

FLP

fixed log periodical

FLOT

front line of own troops

FLOPS

floating-point operations per second (measure of computer processing ability)

FLES

facility local emergency supervisor

FLA

full-load amperes

Fla.

Florida (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Miami)

FL

Florida (use only with ZIP code addresses)

FMEF

Fuels and Materials Examination Facility

FOAM

Fates of Aromatics Model

FIR

– far-infrared
– finite impulse response

FIVRS

Financial Information Variance Reporting System

FIS

– federal interim storage
– Financial Information System (data base)
– fluoroimmunosensor (fiber-optic based)
– fuel identification system
– Funding Information System

FIT

– field investigation team
– Fix-It Team
– flight instrument trainer

FLM

federal land manager (e.g., National Park Service)

FNARS

FEMA National Radio System

FORET

Forest of East Tennessee (model)

FORCM

Fiber Optic Refrigeration Cycle Monitor

FeS

iron sulfide

FIPS

Federal Information Processing Standards (NIST)

FORAST

Forest Response to Anthropogenetic Stress (model)

FOR

Fiber Optics Ring (computer system)

FONSI

finding of no significant impact

FOIA

Freedom of Information Act of 1966

FOF

Factory of the Future

FOCI

foreign ownership, control, or influence

FOB

federal office building

FO

fiber-optic

FN/GSO

Foreign National/Guest Services Office

FNATS

FEMA National Teletype System

FMF

Federal Methanol Fleet

FNAL

Fermi National Accelerator Laboratory

FNA

French National Academy

FN/GSO

Foreign National/Guest Services Office

FMT

field monitoring team

FMS

– Finance, Materials & Services Division (PGDP)
– flexible manufacturing system

FMR

Field Material-Handling Robot

FMPC

Feed Materials Production Center (now Fernald Environmental Management Project)

FMP

– Facility Management Plan
– friction microprobe
– U.S. Navy Fleet Modernization Program

FMLA

Family and Medical Leave Act of 1993

FMIT

Fusion Material Irradiation Test

FMIS

Facility Management Information System

FMFIA

Federal Managers Financial Integrity Act

FNO

Foreign National Office

FENDL

Fusion Evaluated Nuclear Data Library

FEWA

Finite Element of Water Flow through Aquifers

FEW

Federally Employed Women

FEVARI

Facility Environmental Vulnerability Assessment Recommendations Implementation

FEVA

Facility Environmental Vulnerability Assessment

FETS

Facilities Energy Technology Service (U.S. Army)

FETEP

Fossil Energy Technology Environmental Program

FET

– field-effect transistor
– folded entry type

FESEM

Forced Entry Safeguards Effectiveness Model

FeS2

– iron disulfide
– pyrite

FES

– Federal Executive Schedule
– final environmental statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

FERN

Fernald Site Office (DOE)

FESA

– Front-End System Analysis
– U.S. Army Facilities Engineering Support Agency

FEP

– fluorinated ethylene-propylene copolymer
– Fossil Energy Program
– tetrafluoroethylene-hexafluoropropylene copolymer

FFCA

– Federal Facility Compliance Act
– Federal Facility Compliance Agreement

FEMP

– Federal Energy Management Program
– Fernald Environmental Management Project (formerly FMPC)
– Fossil Energy Materials Program

FEMA

– Finite Element Model of Material Transport Through Aquifers
– U.S. Federal Emergency Management Agency

FEM

finite element method

FEL

free-electron laser

FEIS

final environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

FEIC

Fossil Energy Information Center

FEI

Financial Executives Institute

FEEP

Fossil Energy Environmental Project

Fed. Regis.

Federal Register (use in reference lists; use "FR" in text with numbers)

FEDC

Fusion Engineering Design Center

FORPS

Forth-based production system

FTP/A

field task proposal/agreement

FERC

Federal Energy Regulatory Commission

FHS

fuel handling system

FIN

– financial (plan)
– financial identification number (NRC)
– Fish Information Network (data base)

FIMS

Facility Information Management System

FIMIS

Fire Inspection Management Information System

FIMA

fissions per initial metal atom

FIM-AP

field-ion-microscope atom probe

FIM

– field-ion microscopy
– Fluidization Indicator Module

FII

Foreign Intelligence Information

Fig(s).

Figure(s) [use when followed by number(s); spell out at beginning of sentence]

FIFRA

Federal Insecticide, Fungicide, and Rodenticide Act of 1947 (USDA)

FIFO

first in first out (buffer)

FIFA

fissions per initial fissile atom

FICA

Facility Interface Capability Assessment

FF

flip-flop (or bistable multivibrator)

FHWA

Federal Highway Administration

FFA

Federal Facilities Agreement

FHAA

Fair Housing Amendments Act of 1988

FGGE

First Global GARP Experiment

FGD

flue gas desulfurization

FFTF

Fast-Flux Test Facility

FFT

fast Fourier transform

FFRDC

federally funded research and development center

FFP

firm fixed price (contract)

FFM

Fuel Failure Mockup

FFE

Federal Field Exercise

FFDCA

Federal Food, Drug, and Cosmetic Act

FIP

federal implementation plan

FI

flow increase

ft-c

footcandle [convert to SI: lux (lx)]

FTMS

Fourier transform mass spectometer

FTRC

Federal Telecommunications Records Center

FTR

– Fast Test Reactor
– federal travel regulations

FIC

Federal Identification Card

FTP

– Fast Track Program (SDI)
– field task proposal
– File Transfer Protocol (computer term)

FED ISX

Fusion Energy Research and Development Program Impurity Study Experiment

FTIR

Fourier transform infrared

FTE

– full-time employee
– full-time equivalent

FTCA

Federal Tort Claims Act

FTC

Federal Trade Commission

FTA

field task agreement

FTU

– first training unit
– flight test unit
– Formazin turbidity unit
– Frascati Tokamak Upgrade

ft-L

footlambert [convert to SI: candelas per square meter (cd/m2)]

FTW

Flying Training Wing (USAF)

FT

– Fourier transform
– full time

ft3

cubic foot [convert to SI: cubic meter (m3), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

ft2

square foot [convert to SI: square meter (m2)]

ft

foot [convert to SI: meter (m)]

FSV

Fort St. Vrain (location of reactor)

FSO

full-scale output

FSN

federal stock number

FSM

Facility Safety Management/Manager

FSI

– ull-scale input
– furnace sorbent injection

FSEV

Full-Scale Experimental Voloxidizer (facility)

FSET

Facility Safety Evaluation Team

FSER

facility safety evaluation report

ft-lb

foot-poundal [convert to SI: joule (J)]

FWCD

fast-wave current drive

°F

degrees Fahrenheit [convert to SI: degrees Celsius (°C) or kelvins (K)]

FZ

float zoned

FYTD

fiscal year to date

FYI

for your information

FY

fiscal year

FWS

U.S. Fish and Wildlife Service

FWPCA

Federal Water Pollution Control Act of 1972

FWP/A

Field Work Package/Agreement

FWP

field work proposal

FWMS

Federal Waste Management System

FWM

food web model

FTS

– Federal Telecommunications System
– Flight Telerobotic Servicer

FWG

– folded waveguide
– functional working group

FSD

Foundation for Science and Disability (AAAS affiliate)

FWCA

Fish and Wildlife Coordination Act of 1958

FWB

first wall and blanket

FWA

Fish and Wildlife Agency

FW

feedwater

FVS

Fighting Vehicle System (DOD)

FVCA

frit vent cup assembly

FVA

frit vent assembly

fvcl

vacancy cluster fraction

FUSRAP

Formerly Utilized Sites Remedial Action Program

FUIT

Federal Unemployment Insurance Tax

FUA

Fuel Use Act of 1978

FTX

field training exercise

FWHM

full width at half maximum

FPEIS

final programmatic environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

FPSC

fixed-price subcontractor

FPS

– Fine Particle Society
– Floating Point System

fps

– foot-pound-second (measurement system) (replaced by SI)
– frames per second

FPR

– Federal Procurement Regulations
– Fuel Processing Restoration

FPPU

first pilot production unit

FPPC

fixed-price prime contractor

FPPA

Farmland Protection Policy Act of 1981

FPP

field planning proposal

FPO

– File Purpose Only (internal document)
– Fleet Post Office

FPMR

Federal Property Management Regulation

FPMCS

Four-Plant Medical and Industrial Hygiene Computer System

FSEAG

Facility Safety Evaluation Application Guide

FPICE

free-piston internal-combustion engine

FPSEHP

free-piston Stirling engine heat pump (also FPSE/HP)

FPED

Fire Protection Engineering Department (OLP)

FPDL

Fission Product Development Laboratory

FPDF

Finishing Process Development Facility

FPD

Fort Peck District (DOE)

FPC

Federal Power Commission

FPA

– Federal Power Act of 1920
– focal plan array
– Fusion Power Associates

FP

– fire protection
– flash point
– fuzzy (logic) production

fp

freezing point

FOV/WIMC

Fiber-Optic Vehicle Weigh-in-Motion and Classification (system)

FOS

Funding Opportunities System

FORTRAN

formula translation

FPM

Federal Personnel Manual

FRG

Federal Republic of Germany

FORSCOM

Forces Command (U.S. Army)

FSAR

final safety analysis report

FSA

Food Security Act of 1981

FS

– feasibility study
– firearms safety
– Food Services
– Forest Service (USDA)
– fractional savings
– full scale

FRRPA

Forest and Rangeland Renewable Planning Act of 1974

FRPCC

Federal Radiological Preparedness Coordinating Committee

FRP

– fiber-reinforced plastic
– fiberglass-reinforced plastic (tanks)

FRMS

facility radiation monitoring system

FRMAP

Federal Radiological Monitoring and Assessment Plan

FRMAC

Federal Radiological Monitoring and Assessment Center

FRLP

fast reciprocating Langmuir probe

FPSE

free-piston Stirling engine

FRHOB

flame-retention-head oil burner

FPSE/HP

free-piston Stirling engine heat pump (also FPSEHP)

FRERP

Federal Radiological Emergency Response Plan

FRD

– Formerly Restricted Data (classification)
– Fuel Recycle Division [now Robotics and Process Systems Division (RPSD)] (ORNL)

FRC

– Federal Regional Center
– Federal Response Center

FRACAS

facility radiation and contamination alarm system

FRA

– Federal Railroad Administration
– Formerly Restricted Area

FR

– facility representative
– frame reset

FR

Federal Register (use with numbers in text; use "Fed. Regis." in reference lists)

Fr

– francium (element, Z = 87)
– franklin [convert to SI:coulomb (C)]

FQA

facilities quality assurance

FPU

– first production unit
– floating point unit

FPT

first production train

FSE

– facility safety engineer
– facility safety evaluation

FRK

fiberglass-reinforced kraft paper

FB

Federal Building

FAR

– Federal Acquisition Regulation
– Federal Aviation Regulations

FARS

Future Armor Rearm System

FARV

Future Armored Resupply Vehicle (U.S. Army)

FAS

French Academy of Sciences

FAST

Flow and Analysis System for Transportation (Model)

FASTER

Fluorocarbon Absorption System for Effluents from Reprocessors

FAT

– factory acceptance test
– functional acceptance test

FBT

Fused Biconically Tapered (coupler)

FAX

facsimile transmission

FAF

facility antialiasing filter

FBA

Federal Bar Association

FBC

fluidized bed combustion

FBH

flat-bottom hole

FBI

Federal Bureau of Investigation

FBI SAC

FBI special agent in charge

FBM

field bus module

FBR

Fast Breeder Reactor

FATLC

Fernald Atomic Trades and Labor Council

FA

Fermi National Accelerator Laboratory

FIRP

Facilities and Infrastructure Recapitalization Program

FYNSP

– Future Years Nuclear Security Plan
– Future Years Nuclear Security Program

FWE

Field Welding Engineer

FED

Fusion Energy Division

FID

– field interface device
– flame ionization detector

FIWG

Feedback and Improvement Working Group

F

– Fahrenheit
– farad
– fluorine (element, Z = 9)

FAO

Food and Agriculture Organization

F&B

Finance and Budget (Division) (ORNL); sometimes used as F&BD

FI&S

Facilities, Infrastructure and Services

FAA

– Federal Aviation Administration
– Food Additives Amendment of 1958 (FDCA)

FAAPC

Field Artillery Ammunition Processing Center

FAB

Fabrication (Division)

FAC

– Federal Administrative Charge
– final acceptance of construction
– free available chlorine
– fuel adjustment charge
– full avoided cost

FACE

free-air CO2 exposure

FACTS

flexible ac transmission

FADC

facility analog-to-digital converter

FAQs

frequently asked questions

f.o.b.

free on board

FDS

fuel disassembly system

FD

– Fire Department (CS&H)
– fuel damage
– functional description

FDA

– facility disposal area
– U.S. Food and Drug Administration (HHS)

FDAR

facility data and approval record

FDCA

Food, Drug, and Cosmetics Act of 1938

FDDI

Fiber Distributed Data Interface

FDER

Florida Department of Environmental Regulation

FDI

Fluor Daniel, Inc.

FDNY

frequency-doubled neodymium YAG (yttrium-aluminum-garnet)

FCTL

Forced Convection Test Facility

FDOP

Facility Description and Operations Plan

FDF

Feed Demonstration Facility

FDU

fluorescent display unit

FBTF

Flow Blockage Test Facility (Advanced Neutron Source)

FaME

Financial Automated Management Environment

FEC

Federal Express Corporation

FEARTDP

Fossil Energy Advanced Research and Technology Development Program (DOE)

Fe

iron (element, Z = 26)

FE

– facility engineering
– finite element
– fossil energy
– Fossil Energy Program (DOE)

FEA

– Federal Energy Administration
– final environmental assessment (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– finite-element analysis

FDO

fee determination official

FCCV

Future Command and Control Vehicle

FCAP

Facilities Capability Assurance Program

FCB

forms control buffer

FDM

finite difference method

FCC

– Federal Communications Commission
– Federal Construction Council
– fluid catalytic cracking

FC

– fluorine and carbon (refrigerant)
– fuel cost

FCA

– Flood Control Act of 1944
– functional configuration audit

FCCSET

Federal Coordinating Council for Science, Energy, and Technology

fcc

face-centered cubic

FCD

– feed conversion demonstration (AVLIS)
– Flaw Calibration Device

FCP

– field command post
– funding change proposal

FCG-TEM

field commission gun transmission electron microscope (HTML, ORNL)

FCRF

Field Change Request Form

FCI

fuel-coolant interaction

FCO

final change order

FCR

fixed change rate

FCF

– Feed Conversion Facility
– Fuel Cycle Facility

FCPA

Foreign Corrupt Practices Act

GES

– Generator Entry System
– Ground Engineering Systems

GESS

General Escape System Simulation (U.S. Navy)

GET

General Employee Training (see GER)

GFHP

gas-fired heat pump

GFCI

ground fault circuit interrupter

GFDL

Goddard Fluid Dynamics Laboratory

GFLOPS

billions of floating-point operations per second (measure of computer processing capability)

GFI

ground-fault interrupter

GFBFPLICE

gas-fueled Braun free-piston linear internal combustion engine

GERT

General Employee Radiological Training

GEIS

generic environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

GERP

General Employee Radiological Protection

GEM

– (not an abbreviation; word derived from "gammas, electrons, and muons")
– Graduate Degrees for Minorities in Engineering, Inc.

GeMSDOE

General Medical Sciences (DOE)

GEP

good engineering practice

GEOSECS

Geochemical Ocean Sections Study

GEOM

geographically detailed model

GFM

government-furnished materials

GJPO

Grand Junction Project Office (also GJ) (DOE)

GER

General Employee Retraining (see GET)

GIS

geographic information system

GLB

greatest lower bound (preferred over "glb" and "g.l.b.") (math)

glb

greatest lower bound ("GLB" is preferred) (math)

gc

gigacycle [spell out; convert to SI: gigahertz (GHz)]

GLAS

Goddard Laboratory of Atmospheric Sciences

GL

General Linear (math)

GKS

Graphical Kernel System

GJ

– gigajoule
– Grand Junction Project Office (also GJPO) (DOE)

GISS

Goddard Institute for Space Studies

GIT

– gastrointestinal tract
– Georgia Institute of Technology

GISC

Generic Intelligent Control System (SNL)

GFMDL

Gas Flow Metrology Development Laboratory

gigacycle

[do not abbreviate this word; convert to SI: gigahertz (GHz)]

GIF

Gamma Irradiation Facility

GIDEP

Government-Industry Data Exchange Program

GIC

Guaranteed Insurance Contract

GIAS

geographic information and analysis system

GI

gastrointestinal

Gi

gilbert [convert to SI: ampere (A)]

GHz

gigahertz

GHTD

Geothermal and Hydropower Technologies Division

GISP

Greenland Ice Sheet Program

GC

– Garrett Corporation
– gas chromatograph/chromatography

GC-MS

gas chromatograph - mass spectrometer

GCHP

– ground-coil heat pump
– ground-coupled heat pump

GCFR

gas-cooled fast reactor

GCEP

Gas Centrifuge Enrichment Plant/Project

GCD

– greater confinement disposal (technology)
– greatest common divisor ("gcd" is preferred) (math)

gcd

greatest common divisor (preferred over "GCD") (math)

GCCP

Global Climate Change Program (DOE)

GCC

– gasification combined cycle
– generalized consistency checking

GCMC

Global Climate Modeling Code (CHAMMP)

GLCA

Great Lakes Colleges Association

GCO

– Generation Certificate Official (waste generation)
– generator certification official
– generator-certified official

grain

[do not abbreviate this word; convert to SI: kilogram (kg)]

gc

gravitational constant

GBR

gas breeder reactor

GBL

Government Bill of Lading

GBD

gas bubble disease

GB

– chemical nerve agent (Sarin)
– gigabyte
– glove box

GAX

– generator-absorber heat exchange (cycle)
– generator-absorber-heat exchanger
– generator-absorber heat pump exchange

GAUGE

General Automation Users Group Exchange

GATT

General Agreement on Tariffs and Trade

GC/MS

gas chromatography/mass spectrometry

GDE

gaseous diffusion enrichment

GEDI

guided electromagnetic defensive interceptor

GEC

Government Enrichment Corporation

GEAT

General Employee Access Training (RRD)

GE

General Electric Company

Ge

germanium (element, Z = 32)

GDS

Graphics Development Section (C&TS)

GDR

giant dipole resonance

GDP

– gaseous diffusion plant
– Geoecology Data Project
– gross domestic product

GCM

General Circulation Model (Department of Energy/Department of Agriculture)

GDG

generation data group (computer term)

GEEI

Global Energy Efficiency Initiative

GDC

– General Design Criteria (DOE 6430.1A)
– General Dynamics Corporation
– glow discharge cleaning

GDA

Generalized Dataset Allocator (computer program)

Gd2O3

gadolinium oxide

Gd

gadolinium (element, Z = 64)

GCT

Ground Challenge Code (PFS)

GCRP

– Gas-Cooled Reactor Program
– Global Change Research Program

GCR

gas-cooled reactor

GCPO

Gas Centrifuge Project Office

GCP

generator-certified person

gdp

gallons per day per person [convert to SI: cubic meters per second per person (m3/s per person), which is preferred over liters per second per person (L/s per person); see restrictions listed under "L" for "liter"]

GSO

– goods and services on order
– Guest Services Office

grad

– vector operation (math)
– gradient (math)

GTF

– Ground Test Facility
– Grout Treatment Facility

GTDA

general technical data available

GTCRP

Global Temperature Change Research Program

GTCC

greater than Class C (nuclear waste)

GtC

gigatons (or gigatonnes) of carbon

GTA

gas tungsten arc (welding)

GT

– gas turbine
– gigatonne

GTO

gate turn-off (thyristor)

GST

Gunite storage tank

GTS

global trip subsystem

GSMNP

Great Smoky Mountains National Park

GSI

– Gesellschaft für Schwerionenforschung
– gonadal somatic index

GSFC

Goddard Space Flight Center

GSF

– Gesellschaft fÜr Strahlen und UmweltforschungmbH MÜnchen
– gross square feet

GSBCA

General Services Board of Contract Appeals

GSA

– General Services Administration
– generator station area
– Geological Society of America
– Government Services Administration
– group snapshot analyzer

GS

General Schedule (U.S. Army)

GRS

Gesellschaft fÜr Reaktorsicherheit

Grms

root-mean-square acceleration

GSU

Gulf States Utilities

GWP

global warming potential

GZ

ground zero

Gy

gray (absorbed dose, energy)

GWU

George Washington University

GWSS

Groundwater Supply Survey

GWTF

Groundwater Treatment Facility

GWPS

groundwater protection standard

GWPP

– Groundwater Program Plan
– Groundwater Protection Program

GWPO

Groundwater Program Office

GTID

geologically targeted infield drilling

GWPA

Groundwater Protection Act

GRGL

groundwater residual guidance level

GWM

groundwater monitoring

GWh

gigawatt-hour

GWd

gigawatt-day

GW(e)

gigawatt (electrical)

GW

– gigawatt
– groundwater

GVW

gross vehicle weight

GUI

graphical user interface

Guam

(spell out unless used with ZIP code addresses)

GU

Guam (use only with ZIP code addresses)

GWPM

Groundwater Protection Plan Management Plan

GMR

Graduated Mobilization Response

GPA

grade point average

GP

general purpose

GOP

Government of Pakistan

GOOSE

Generalized Object-Oriented Simulation Environment (computer language)

GOH

Government of Haiti

GOCO

government-owned, contractor-operated (facility/installation)

GOC

government-owned container

GNSI

General Nuclear Systems, Inc.

GRIDSS

Global Resource Intelligent Decision Support System

GMT

Greenwich mean time

GPE

– general plant equipment
– general-purpose equipment

GMD

geomagnetic disturbance

GMCC

Geophysical Monitoring for Climatic Change

GMA

Great Miami Aquifer

GM

– gain margin
– Geiger-MÜller (Geiger-Mueller if Ü is not available)
– General Merit (U.S. Army)
– General Motors Corporation

gm

gigameter

GLP

good laboratory practice

GLOBE

Global Legislators for a Balanced Environment

GLGP

Geothermal Loan Guaranty Program

GLEEP

Graphite Low-Energy Experimental Pile (U.K.) (see BEPO)

GNP

gross national product

GPS

– general plant services
– geopositioning satellite
– Global Positioning System

GLCA/ACM

Great Lakes Colleges Association/Associated Colleges of the Midwest

GRF

global reference frame

GRESS

Gradient Enhanced Software System (ORNL)

GRAS

generally recognized as safe

Ga

gallium (element, Z = 31)

GRAIL

Gene Recognition and Analysis Internet Link (system)

GATF

Graphic Arts Technical Foundation

gr/scf

grains per standard cubic foot [convert to SI: kilograms per cubic meter (kg/m3)]

GQR

giant quadrupole resonance

GPCGP

Great Plains Coal Gasification Plant

GPU

General Public Utilities Corporation

gpd

gallons per day [convert to SI: cubic meters per second (m3/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

GPR

ground-penetrating radar

GPP

general plant project

GPO

Government Printing Office

GPM

– generalized perturbation method
– gradient projection method

gpm

– gallons per mile [convert to SI: cubic meters per kilometer (m3/km), which is preferred over liters per kilometer (L/km); see restrictions listed under "L" for "liter"]
– gallons per minute [convert to SI: cubic meters per second (m3/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

GPIB

general-purpose interface bus

GPHS

general-purpose heat source

GPF

– general plant facility
– General Protection Fault
– general-purpose facility

GRI

Gas Research Institute (Chicago, Illinois)

GQM

groundwater quality monitoring

g.l.b.

greatest lower bound ("GLB" is preferred) (math)

GATERS

ground-air telerobotics system

G

– gauss [convert to SI: tesla (T)]
– giga [billion, prefix (109)]
– gilbert [convert to SI: ampere (A)]

GA

– chemical nerve agent (Tabum)
– General Atomic (a company name)
– Georgia (use only with ZIP code addresses)

g-cm

gram-centimeter

G-M

Geiger-MÜller

G-M C

Geiger-MÜller counter

g/kg

grams per kilogram

g/t

grams per metric ton

G/O

goals and objectives

G&A

general and administrative (refers to cost accounting)

G&A/GPS

general and administrative and general plant services (refers to cost accounting)

G&W

Gulf and Western

ga.

gauge

GAMETAG

Global Atmospheric Measurements Experiment of Tropospheric Aerosols and Gases

g

– acceleration due to gravity
– gram

GATE

GARP Atlantic Tropic Experiment

Ga.

Georgia (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Atlanta)

GAO

– General Accounting Office
– goal achievement objective

GAT

Goodyear Atomic Corporation

gal/min

gallons per minute [convert to SI: cubic meters per second (m3/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

gal

gallon [convert to SI: cubic meters (m3), which is preferred over liters (L); see restrictionslisted under "L" for "liter"]

GAIA

GUI-Driven Application Interchange Architecture

GAF

glass absorption filter

GAC

– General Advisory Committee
– Goodyear Aerospace Corporation
– granulated activated carbon

GaAs

gallium arsenide

GAAP

generally accepted accounting principles

GARP

Global Atmosphere Research Project

HFIR

High Flux Isotope Reactor

hfs

hyperfine structure

HFT

heat flux transducer

Hg

mercury (element, Z = 80)

HGA

high-gain array

HGDM

Highway Gasoline Demand Model (ORNL)

HGMIS

Human Genome Management Information System

HFFU

hold for future use

HPAS

Hybrid Pollution Abatement System

3HF

3-hydroxyflaverone

HGMS

high-gradient magnetic separation

HFEF

Hot Fuel Examination Facility

HFC

hydrofluorocarbon (refrigerant)

HFBR

– High-Flux Beam Reactor (BNL)
– High Flux Breeder Reactor

HFAF

high-frequency antaliasing filter

HF

– helical field
– hindrance factor
– hydrogen fluoride

hf

high frequency

HEW

– high enriched uranium
– U.S. Department of Health, Education, and Welfare (now HHS)

HEUR

heating energy use rate

HEU

highly enriched uranium

HCl

hydrogen chloride

HPC

– heat pump capacity
– high-performance computing

Hf

hafnium (element, Z = 72)

HS&GW

health, safety and general welfare

HPTF

High Power Test Facility

HPT

– health physics technician
– high-pressure turbine

HPSI

high-pressure safety injection

HPS

– Health Physics Society
– high-pressure sodium (lighting systems)

HPRT

hypoxanthine-guanine phosphoribosyl transferase

HPRR

Health Physics Research Reactor

HPRA

Hydroelectric Power Resources Assessment (FERC)

HPP

– Health Physics Procedures
– hydrolyzed plant protein (see HP and TPP)

HPOF

high-pressure oil-filled

HPO

high phase order

HPLC

– high-performance liquid chromotograph/chromotography
– high-pressure liquid chromotograph/chromotography

HPMS

Highway Performance Monitoring System

HPCA

High-Performance Computing Act of 1991

HPIMS

Health Physics Information Management System

HPIC

Health Physics Instrument Committee

HPIA

Hewlett-Packard Impedance Analyzer

HPGL

Hewlett-Packard Graphics Language

HPGe

high-purity germanium

HPFL

High Performance Fuel Laboratory

HPERC

High-Pressure Equipment Review Committee

HPCRC

High Performance Computing Research Center (ORNL)

HPCI

high-pressure coolant injection

HPCC

High Performance Computing Center (ORNL)

HELB

high-energy line break

HDF

hierarchical data format

HEMT

high-electron mobility transistor

HE

– Hanford Environmental Health Foundation
– heating system conversion efficiency
– high explosive
– human error

He

helium (element, Z = 2)

HDTV

– high-density television
– high-definition television

HDS

hydrostatic design stress

HDR

horizontal drive

HDPO

HEU Disposition Program Office

HDPEX

cross-linked, high-density polyethylene (also PEHX and XHDPE)

HDPE

high-density polyethylene (also PEH)

HDO

– dilute heavy water
– half-heavy water

HEAST

Health Effects Assessment Summary Table

HDL

Harry Diamond Laboratories

HECP

Herbaceous Energy Crops Program

HDDR

high-density digital recorder

HDD

heating degree-day

HD

– chemical blister agent (distilled mustard)
– high density

HCW

hazardous chemical waste

HCTL

hot-cell test loop

HCTC

Heating and Cooling Technology Center (Energy Division, ORNL)

HCS

Hazard Communications Standard

HCP

– Hearing Conservation Program
– Heating Conservation Program
– homocast propylene

hcp

hexagonal close packed

HCLR

heating collector load ratio

HDM

Hedonic Demand Model

HRLCDL

High-Radiation-Level Chemistry Development Laboratory

HETS

height equivalent to a theoretical stage

HETP

height equivalent to a theoretical plate

HETF

Hot Engineering Test Facility (Japan PNC)

HESR

heating energy supply rate

HERMIES

Hostile Environment Robotic Machine Intelligence Experiment Series (ORNL)

HEPA-F

high-efficiency particulate air filter

HEPA

– high-efficiency particulate absolute (filter)
– high-efficiency particulate air (filter)
– high-efficiency particulate arrestance

HEP

Habitat Evaluation Procedures

HEMP

high-altitude electromagnetic pulse

HEMTT

Heavy Enhanced Mobility Tactical Truck

HEA

– health and environmental assessment
– health effects assessment

HELSTF

High Energy Laser System Test Facility

HETUP

Harmonic Energy Transformed to Useful Power

HEL

– high-energy laser
– Human Engineering Laboratory (U.S. Army)

HEI

– Higher Education Institute
– Hawaiian Electric Industries, Inc.

HEGL

high-energy gas laser

HEF

Hot Experimental Facility

HEEP

Health and Environmental Effects Profile

HeE

helium embrittlement

HEDRP

Hanford Environmental Dose Reconstruction Project

HEDL

Hanford Engineering Development Laboratory

HEDI

high-endoatmospheric defense interceptor

HED

Human Engineering Laboratory (U.S. Army)

HPV

high production volume

HVI

high-volume impactor

HWEAHRT

Hazardous Waste Expert Advisor and Hypertext Reference Tool

HWDU

hazardous waste disposal unit

HWDMS

Hazardous Waste Data Management System

HWCVD

heavy water collection, venting, and draining

HWC

hazardous waste code

HWBF

high-water base fluid

HWBEG

Headwater Benefits Energy Gains (FERC model)

HW

– heavy water
– hot water

HVP

hydrolyzed vegetable protein

HRLAF

High-Radiation-Level Analytical Facility

HVIC

high-voltage integrated circuit

HWIE

Hazardous Waste Information Evaluation (Subcommittee of CCEHRP)

HVEM

high-voltage electron microscopy

HVDC

high-voltage direct current

HVAL

High-Voltage Accelerator Laboratory

HVAC

– heating, ventilating, and air-conditioning
– high-voltage alternating current

hv

high voltage

HUT

hold-up tank

HUR

Huron District Office (DOE)

HUD

U.S. Department of Housing and Urban Development

HTU

– heat transfer unit
– height of transfer unit

HTTR

High-Temperature Test Reactor (Japan)

HVL

– half-value layer
– High-Voltage Laboratory

HWSF

Hazardous Waste Storage Facility

HGN

Human Genome News

Hz

hertz

HYPO

Los Alamos (high-power) Boiling Water Reactor

HX

heat exchanger

HWVP

Hanford Waste Vitrification Plant

HWU

hot water usage

HWUDF

heavy water upgrading and detritiation facility

HWUDB

heavy water upgrading and detritiation building

HWTS

Hazardous Waste Tracking System

HWTP

Hazardous Waste Technology Program (ORNL)

HWERL

– Hazardous Waste Engineering Research Laboratory
– Hazardous Waste Environmental Research Laboratory

HWSTS

heavy water storage and transfer system

HWGWTF

Hazardous Waste Ground Water Task Force

HWSA

Hazardous Waste Storage Area

HWRAP

Hazardous Waste Remedial Actions Program

HWR

heavy-water reactor

HWP

Hazardous Waste Program

HWOG

Hazardous Waste Operations Group

HWOCR

heavy-water-moderated organic-cooled reactor

HWMA

hazardous waste management area

HWM

hazardous waste management

HWLDS

heavy water leak detection system

HTR

high-temperature reactor

HWTC

Hazardous Waste Treatment Council

HRIBF

Holifield Radioactive Ion Beam Facility (ORNL)

HTSPC

High Temperature Superconductivity Pilot Center

HS

hazard screening

Hs

hassium (element, Z = 108)

HRT-2

Homogeneous Reactor Test Number 2

HRT

Homogeneous Reactor Test

HRS

Hazard Ranking System (EPA)

HRPD

high-resolution powder diffractometer

HRP

– Homogeneous Reactor Project
– Human Reliability Program

HRO

Human Resources Organization )

HRLEL

High-Radiation-Level Experimental Laboratory

HSA

– Health Studies Agreement (between Tennessee and DOE, effective August 15, 1992)
– Historic Sites Act of 1935

HRIN

Human Resources Information Network

HSD

Health and Safety Division

HRE

Homogeneous Reactor Experiment (impoundment)

HRDF

High-Temperature Gas-Cooled Reactor Reprocessing Demonstration Facility

HRD

Human Resource Development Department

HRCQ

highway route controlled quantities

HRCP

Hood River Conservation Project

HRB

horizontal radiant barrier

HR

– heart rate
– highly reflective
– high reflectance

HQ/SMT

Headquarters/Supply Maintenance and Transportation

HQ

headquarters

HRLAL

High-Radiation-Level Analytical Laboratory

HSSI

Heavy-Section Steel Irradiation (Program) (ETD, ORNL)

HPWH

heat pump water heater

HTO

tritiated water

HTML

– High Temperature Materials Laboratory (ORNL facility; new in 1987)
– HyperText Markup Language (subset of SGML used with WWW)

HTHSFC

high-temperature, high-sensitivity fission counter

HTGR

high-temperature gas-cooled reactor

HTFS

Highway Traffic Forecasting System (DOT)

HTC

heated thermocouple

HTA

hypothetical thermal accident

HT-UPS

high-temperature-ultrafine-precipitate-strengthened (steel)

HT

– chemical blister agent (distilled mustard and an inorganic compound)
– hydrogen-tritium

HS&E

health, safety, and environment

HSST

Heavy-Section Steel Technology (Program) (ETD, ORNL)

HTS

high-temperature superconductivity/superconductor

HSS

handling, storage, and shipping

HSRR

Health and Safety Readiness Review

HSRD

Health Sciences Research Division [formerly Health and Safety Research Division (HASRD)]

HSPF

heating seasonal performance factor (also SPFH)

HSL

Hazardous Substance List (EPA)

HSI

Habitat Stability Indices

HSF

heating solar fraction

HSEOS

hard-sphere equation of state

HSEED

Hispanic Summer Educational Experience for the Disadvantaged (program)

HSEA

– Health, Safety, and Environmental Affairs
– health, safety, and environment assessment
– Health, Safety, Environment, and Accountability (Organization)

HSWA

Hazardous and Solid Waste Amendments of 1984 (amendments to RCRA)

HJTC

heated junction thermocouple

HMC

hazardous materials coordinator

HM

hazardous material (MSDS)

HER

Hazard Evaluation Report

HLW

high-level waste

HLUT

horizontal look-up table

HLQ

holocellulose:lignocellulose quotient

HLW

high-level waste

HLLW

high-level liquid waste

HLLV

Heavy Lift Launch Vehicle

HLLMS

hot leg level monitor system

HLLM

hot leg level monitor

HLCS

high-level control station

HIAA

Health Insurance Association of America

HIPAA

Health Insurance Portability and Accountability Act of 1996

HMCRI

Hazardous Materials Control Research Institute

HIWDC

Hydrometeorological Information - World Data Center (Obninsk, Russia)

HIV

human immunodeficiency virus

HISTRAP

Heavy-Ion Storage Ring for Atomic Physics

HISS

Hazelwood Interim Storage Site

HIR

heating input ratio

HIOS

hardware-independent operating system

HIMAC

Heavy-Ion Medical Accelerator (Japan)

HILI

Heavy Ion/Light Ion

HILAC

Heavy Ion Linear Accelerator (UCRL)

HIFI

HFIR Irradiation Facility Improvement

HID

– helium ionization detector
– high-intensity discharge

HIC

high-intergrity container

HIBP

heavy-ion beam probe

HL&P

Houston Lighting and Power Company

HMWMC

Hazardous Materials and Waste Management Consortium

HCFC

hydrochlorofluorocarbon (refrigerant)

HSC

– Health Services Center
– heating seasonal cost

HPAC

high-pressure air compressor

HP&RE

Health Physics and Radiological Engineering

hp·h

horsepower hour [convert to SI: watts per second (W/s)]

HP

– health physics/physicist
– heat pump
– Hewlett Packard
– high performance
– high pressure
– hydrolyzed protein (see HPP and TPP)

hp

horsepower [convert to SI: watt (W)]

HOV

high-occupancy vehicle

hom

homology (math)

HOE

Homing Overlay Experiment (U.S. Army)

HOB

height of burst

Ho

holmium (element, Z = 67)

HNO3

nitric acid

HMC&M/HMIS

hazardous materials data base that includes HMIS (DOD repository for MSDS information), SHML, and HMUG

HMRB

Hazardous Materials Regulations Board (DOT)

HOA

hands-off-automatic

HMFSA

Home and Motel Fire Safety Act of 1988

HMI

– hazardous materials incident
– human-machine interface

HMIS

– Hazardous Material Information System
– Hazardous Material Inventory System

HMMWV

high-mobility multipurpose wheeled vehicle

HNEI

Hawaiian Natural Energy Institute

HMR

Hazardous Materials Regulations

HMWPE

high-molecular-weight polyethylene

HMT

hazardous materials transport

HMTA

Hazardous Materials Transportation Act of 1975 (Amendments of 1976)

HMTUSA

Hazardous Materials Transportation Uniform Safety Act

HMUG

Hazardous Material Users Guide

HMW

– hazardous and mixed waste
– high molecular weight

HMCHP

heat-of-mixing chemical heat pump

HMO

health maintenance organization

HARM

Hazard Assessment Rating Methodology

Ha

hahnium (element, Z = 105)

HAWT

horizontal-axis wind turbine

Hawaii

(spell out unless used with ZIP code addresses; state name is not needed with Honolulu)

HAW

high-activity waste

HASRD

Health and Safety Research Division (now HSRD) (ORNL)

HASL

Health and Safety Laboratory

HAZCOM

– hazardous compound
– hazardous communication

HARM II

Hazardous Airborne Release Monitor, Version II

HAZMAT

hazardous material

HAP

hazardous air pollutant

HAN

hydroxylamine nitrate

HaMTES

Hazardous Materials Transportation Expert System

HALO

high-altitude large optics (DARPA)

HAD

health assessment document

HA

–Drinking Water Health Advisory
– heat amplifier

HAS

heat-actuated system

HBT

heterojunction bipolar transistor

HOC

– hydrophobic organic compound
– halogenated organic compound

HI

– Hawaii (use only with ZIP code addresses)
– heavy ion

HCF

– Hydroclave Curing Facility
– hydrofluorocarbon (refrigerant)

HCCP

Healy Clean Coal Project

HCBS

– hexachlorobenzene
– hexachlorobutadiene

HCBP

hexachlorobiphenol

HAZ

heat-affected zone

HBV

hepatitis B virus

HAZWRAP

Hazardous Waste Remedial Actions Program

HBRR

high bit-rate recorder

HBCU

historically black colleges and universities

HAZWOPER

Hazardous Waste Operations and Emergency Response

HAZWDDD

hazardous waste development, demonstration, and disposal

HAZTRAK

Hazardous Materials Tracking Program

HAZOP

hazard and operability study

HC

hydrocarbons

3H

hydrogen or tritium (also T, t, H3, or H3)

ha

hectare

HHRA

human health risk assessment

HHMS

– Hydrostatic Head Measuring Station
– Hydrostatic Head Monitoring Station (program)

HHIRF

Holifield Heavy Ion Research Facility

HHV

high heat value

HHF

high heat flux

HGP

Human Genome Project

HHS

U.S. Department of Health and Human Services (formerly HEW) (also DHHS)

2H

hydrogen gas or deuterium (also D, d, H2, or H2)

h

– coefficient of heat transfer
– hour [when used with SI, convert to SI: seconds (s)]

H

– chemical blister agent (mustard)
– henry
– histone (e.g., H2A, H3A,...)
– hydrogen (element, Z = 1)
– magnetic field
– magnetizing force

H/A

hand/automatic

H&AO

Honors and Awards Office

H2

hydrogen gas or deuterium (also D, d, 2H, or H2)

H3

hydrogen or tritium (also T, t, 3H, or H3)

H&R

hoisting and rigging

H2O

water

H2H

highest, second highest

H2S

hydrogen sulfide

H3

hydrogen or tritium (also T, t, 3H, or H3)

H2

hydrogen gas or deuterium (also D, d, 2H,or H2)

H&V

heating and ventilating

H&SRR

health and safety readiness review

H&S

health and safety

INIRC

International Non-Ionizing Radiation Protection Association

INTOR

International Tokamak Reactor

INMM

Institute of Nuclear Materials Management

INMS

Integrated Network Management System

INM

Integrated Network Management (Project)

INMTS

International Nuclear Material Tracking System

INTECOL

International Association for Ecology

INT

p-iodonitrotetrazolium

INS

– International News Service
– U.S. Immigration and Naturalization Service

int

interior (math)

INFCE

International Nuclear Fuel Cycle Evaluation

IN

Indiana (use only with ZIP code addresses)

INPO

Institute of Nuclear Power Operations

INF

Intermediate-Range Nuclear Forces (Treaty)

inf

– inferior (math)
– infimum (math)

INEEL

Idaho National Engineering and Environmental Laboratory (Idaho Falls, Idaho) [previously INEL, Idaho National Engineering Laboratory; as of Feb. 1, 2005, INEEL and Argonne National Laboratory-West (ANL-W) became the Idaho National Laboratory (INL)]

INE

National Energy Institute (of Ecuador)

Ind.

Indiana (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Indianapolis)

Inc.

Incorporated

in.3

cubic inch [convert to SI: cubic meter (m3)]

in.

inch [convert to SI: centimeter (cm) or meter (m)]

IPA

Institut für Produktionstechnik und Automatisierung

In

indium (element, Z = 49)

IMTT

– Information Management Task Team
– Inorganic Membrane Technology Transfer (program at K-25 Site)

IMSL

Intelligent Measurement Systems Laboratory

IMS

Information Management Services (now Communications Services)

IMRC

Interdivision Minority Recruiting Committee

in.2

square inch [convert to SI: square meter (m2)]

IPC

– Institute of Paper Chemistry
– integrated protection cabinet
– Isotopes Processing Complex

IPFMD

Implementation Planning and Facilities Management Division (K-25)

IPG

immediate participation guarantee

IPM

(p-iodophenyl) maleimide

IPET

Integrated Prototype Equipment Test

IHX

intermediate heat exchanger

IMR

Internal Management Review

IPP

– Independent Power Producer
– Industry Participation Program
– International Plant Pathogen

IPP Garching

Max Planck Institut für Plasmaphysik, Garching, Germany

IPR

– In-Project Review
– Interdepartmental Purchase Request

IPDP

Isotopes Production and Distribution Program

IPD

Integrated Process Demonstration

ipd

pipe diameter, inches [convert to SI: pipe diameter, meter (m); or pipe diameter, centimeters (cm)]

Iowa

(spell out unless used with ZIP code addresses; state name is not needed with Iowa City)

IPCC

Intergovernmental Panel on Climate Change

inv

inverse (math)

IPBB

Interplant Broadband (network)

IPACS

Inertial Power Advanced Concept System

IP

– implementation plan
– industrial participant
– information processing
– institutional plan
– Internet Protocol
– ionization potential
– Office of Industrial Progress (DOE)

IPEEE

individual plant examination of external events

IOU

investor-owned utility

IOR

ion exchange resin

IOP

input/output processor

ips

inches per second [convert to SI: centimeters per second (cm/s)]

IOC

– initial operational capability
– inorganic chemical
– Interplant Operating Committee

IO

– Information Flow and Operation
– information owner
– initial(s) only
– Institute of Oceanology
– Iowa (use only with ZIP code addresses)

INZ

immediate notification zone

IPS

– Intel Paragon supercomputer (ORNL)
– International Pipe Standard
– interim pumping station
– interim pumping system
– iron pipe size

IPCS

integrated plant control system

IGO

Inspector General's Office

IHP

– Industrial Heat Pump Program
– Industrial Hygiene Procedure

IHMM

Institute of Hazardous Materials Management

IHEMSC

In-House Energy Management Steering Committee

IHEM

– in-house energy management
– In-House Energy Management (Program)

IHD

Industrial Hygiene Division

IH

– industrial hygiene
– Information Highway

IGY

International Geophysical Year

IGUA

International Guards Union of America

IGU

International Geographical Union

IGT

– Institute of Gas Technology
– insulated gate transistor

IGSCC

intergranular stress-corrosion cracking

IIASA

International Institute for Applied Systems Analysis

IGORR

International Group on Research Reactors

IID

intermittent ignition device/intermittent pilot ignition device

IGES

International Graphics Exchange System

IGCC

– Institute of Global Climate Change
– integrated coal gasificationcombined cycle
– intermediate gasificationcombined cycle

IPSO

integrated process status overview

ISSO

information system security officer

IGC

Intermagnetics General Corporation

IGBT

insulated gate bipolar transistor

IGBP

International Geosphere-Biosphere Programme

IGAS

integrated gas analysis and sensing

IFSM

installation facility safety manager

IFSMTF

International Fusion Superconducting Magnet Test Facility (ORNL)

IG

– inspector general
– Interpretation Guide

IFSP

Isotopes Facilities Shutdown Program

IGRIP

Interactive Graphics Robot Instruction Program

IM

– intermodulation
– information maintainter

IMPAC

– Integrated Management Planning and Control (project)
– ion implantation perturbed angular correlation

IMP

intramembranous protein particle

IMOG

Interagency Mechanical Operations Group

Imm or IMM

modified Mercalli intensity

IMIS

– Integrated Marketing Information System
– Inventory Management Information System

IMI

infield methanol immersion

IMHP

ice-maker heat pump

IMGA

Irradiated Microsphere Gamma Analyzer

IMET

irradiated materials examination and test

IMEASY

Integrated Management and Economic Analysis System

IMD

Interim Management Directive

IMAC

individual microcomputer access control

IHSS

International Humic Substances Society

IM-Al

inorganic monomeric aluminum

IIA

Institute of Internal Auditors

Im

imaginary (math)

ILWAS

Integrated Lake-Watershed Acidification Study (EPRI)

ILW

intermediate-level waste

ILSR

Institute for Local Self-Reliance

ILL

– Institute Laue-Langevin (Grenoble, France)
– Interlibrary Loan (Department) (ORNL)

Ill.

Illinois (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Chicago)

ILF II

Industrial Landfill II

ILE

inspection-level earthquake

ILCT

International Large-Coil Task

IL

Illinois (use only with ZIP code addresses)

IIE

Institute of Industrial Engineers

IMPP

Improved Multisite Production Program

IMA

Institute of Management Accountants

ISX

Impurity Study Experiment

ITOS

inspection, test, and operating status

ITO

– Incentive Task Order (formerly EPIC)
– Installation Traffic Office

ITMS

ion-trap mass spectrometer

ITIS

Integrated Technical Information System

ITER

– International Thermonuclear Experimental Reactor
– International Tokomak Experimental Reactor

ITE

Institute for Transuranium Elements (Karlsruhe, Germany)

ITDS

Integrated Traffic Data System

ITCC

International Communications Conference (now STCAC)

ITC

– Interagency Testing Committee
– International Trade Commission

ITAE

integral of the time-weighted absolute error

ITA

– International Television Association
– International Trade Administration (U.S. Department of Commerce)

ISSCO

Integrated Software SystemsCorporation

IT-C

Information Technology Configuration Management System

ITR

information technology resources

ISWA

International Solid Wastes Management and Public Cleansing Association

ISV

– in situ vitrification
– independent software vendor

ISTIG

intercooled steam-injected gas turbine

ISTP

Integrated System Test Plan

ISTM

inspection, surveillance, testing, and maintenance

ISTF

Ice Storage Test Facility

ISTEA

Intermodal Surface Transportation Efficiency Act of 1991

IST

– in-service testing
– in situ treatment

ISSP

Information System Security Plan

ITS

– important to safety
– Information Technology Services
– Intelligent Transportation Systems

ISSM

– Information System Security Site Manager
– Integrated Safeguards and Security Management

IFS

– integrated file storage
– Integrated Forest Study (on the Effects of Atmospheric Deposition)

IT

– information technology
– Information Technology, when used as name of organization (e.g., Information Technology Organization)
– International Technology Corporation
– Internet Technologies

IUUPGWA

International Union, United Plant Guard Workers of America

IXR

intelligent transfer restore

IX

ion exchange

IWTP

industrial waste treatment plant

IWS

– Institute for Water Resources
– ionized wet scrubbers

IWP

International Information/Word Processing

IWO

interim waste operation

IWMF

Interim Waste Management Facility

IWCP

Industrial Waste Control Plan (ORNL)

IWC

– inches of water column (units of pressure)
– instream waste concentration

IVP

Integrated Value-Based Planning (project of EPRI)

IVI

interactive videodisk instruction

IVHS

intelligent vehicle highways system

ITP

– integrated test plan
– interface and test processor
– International Technology Programs (K-25 division)

IV

intravenous

ITPE

Interzone Temperature Profile Estimation

IUR

International Union of Radioecologists

IUPAP

International Union of Pure and Applied Physics

IUPAC

International Union of Pure and Applied Chemistry

IUFRO

International Union of Forest Research Organizations

IUCN

International Union for Conservation of Nature and Natural Resources (Switzerland)

IUC

integrated utility communications

ITWG

Internet Technologies Working Group

ITSS

Information Technology Systems and Services

ITRI

Inhalation Toxicology Research Institute

ITRE

Institute for Transportation Research and Education

ITRB

Independent Technical Review Board

ISPO

International Safeguards Project Office

IVFS

in-vessel fuel storage

IRD

Instituto de Radioprotecao e Dosimetria (Brazil)

ISS

Industrial Safety Section

IROXS

impact response of oxide scales (technique)

IRMSC

Information Resource Management Steering Council

IRMS

– Information Resource Management System
– Integrated Resources Management System

IRML

Isotope Research Materials Laboratory

IRMD

Information Resource Management Division

IRM/SP

Information Resource Management Strategic Plan

IRM

Information Resources Management

IRIS

– Image Retrieval Information System
– Integrated Risk Management Facility
– Intellectual Resources Information System

IRIG

interrange instrumentation group

IRI

Industrial Research Institute

IRHQ

Institut de Recherche d' Hydro Quebec

IRPA

International Radiation Protection Association

IRG

Independent Review Group

IRPM

Information and Records Program Management (now PAD)

IRCEE

Information Resource Center for Energy and Environment

IRC

– Information Resource Center
– Internal Revenue Code

IRB

– Internal Review Board
– internal review budget

IRA

– Information Resources and Administration (predecessor to IMS)
– interim response action

IR&D

independent research and development

IR&A

– independent review and appraisal
– Information Research and Analysis (Section) [became Biomedical and Environmental Information Analysis (Section) (BEIA) September 1989] (HASRD, ORNL)

IR

– heat resistance
– incident reporting
– infrared ("ir" is preferred)
– infrastructure reduction
– inspection record
– inspection request
– insulation resistance

Ir

iridium (element, Z = 77)

ir

infrared (preferred over "IR")

IQ

intelligence quotient

IPV

instrument pressure vessel

IPTS

International Practical Temperature Scale

IRGRC

International Research Group on Risk Communication

ISDD

Integrating System Design Description

IPT

International Power Technology

ISP

– incremental sales proposal
– Information Systems Plan

ISOO

Information Security Oversight Office

ISOL

isotope separation on-line

ISO

International Organization for Standardization (preferred over "International Standards Organization")

ISMS

Integrated Safety Management System

ISM

Integrated Safety Management

ISI

– in-service inspection
– Integrated Systems, Inc.

ISFSI

independent spent-fuel storage installation

ISFMTF

International Fusion Superconducting Magnet Test Facility

ISEM

– Inside Safeguards Effectiveness Model
– International Society for Ecological Modelling

ISEATRA

International Symposium on Ecological Aspects of Tree-Ring Analysis

IRP

– Installation Restoration Program
– Integrated Resource Planning

ISDN

Integrated Services Digital Network

ISRM

International Society for Rock Mechanics

ISD

– Information Services Division (now part of IMS)
– instrument system diagram

ISCST

Industrial Source Complex, Short-Term [air pollution dispersal model (EPA)]

ISCP

installation spill and contingency plan

ISCC

intergranular stress corrosion cracking

ISC

– industrial source complex
– intelligent system computer

Isc

short-circuit current

ISAM

Indexed Sequential Access Method

ISA

– information security audit (DOE)
– Instrument Society of America

IS&T

innovative science and technology

IS&AHP

Industrial Safetyand Applied Health Physics Division

IS

– industrial safety
– interim site

IRS

Internal Revenue Service

ISE

– integral of the square error
– Integrated Space Experiment
– International Submarine Engineering

IB

– Idaho Branch Office (DOE)
– incipient boiling

IBW

ion Bernstein wave

IBS

– Integrated Booking System
– internal bremmstrahlung spectrum

IBM

International Business Machines

IBL

incipient boiling level

ibid.

ibidem (Latin: in the same place)

IBI

index of biotic integrity

IBD

Ion Beam Deposition

IAQP

Indoor Air Quality Program

IBA

Industrial Biotechnology Association

IC/DRS

Information Center Data Reports System

IAW

in accordance with

IATA

International Air Transport Association

IASTED

International Association of Science and Technology for Development

IASCC

irradiation-assisted stress-corrosion cracking

IAS

– Information Architecture Specification
– isobaric analog state (see SIL)
– International Association of Theoretical and Applied Limnology

IARC

International Agency for Research on Cancer

ICGG

Illinois Coal Gasification Group

IMPRB

Issues Management Prioritization and Risk Board

ICCB

Intergovernmental Consultation Coordination Board

ICF

inertial confinement fusion

ICET

Institute for Certified Engineering Technicians

ICESUG

Integrated Civil Engineering System Users Group

ICENET

Instrumentation and Controls Division Computer Network

ICE

– independent cost estimate
– internal combustion engine

ICDB

Integrated Cargo Database

ICD

interface control document

IBWC

International Boundary and Water Commission

ICCI

inadequate core cooling instrumentation

IC

– impractical to certify
– incident commander
– inductance capacitance
– industrial cooperation
– institutional control
– instructional control
– integrated circuit
– internal combustion
– ion chromotography

ICC

– inadequate core cooling
– Information Center Complex
– Insulated Conductors Committee (IEEE PES)
– Interstate Commerce Commission

ICBM

Intercontinental Ballistic Missile

ICB

Industrial Cooperation Bulletin

ICAP

inductively coupled argon plasma

ICAM

integrated control and measurement

ICADD

International Committee for Accessible Document Design

ICA

– interim corrective action
– International Communications Association
– Inventors Club of America

IAQCR

Intrastate Air Quality Control Region

ICCT

innovative clean coal technology

I-CASE

integrated computer-aided software engineering

IA

– Independent Assessment
– Interagency Agreement
– Iowa (use only with ZIP code addresses)

I2

iodine

I&R

inspection and repair

I&M

installation and materials

I&E

inspection and evaluation

I&C

– impact and capability
– instrumentation and control
– Instrumentation and Controls Division

I/O

input/output

IAR

isobaric analog resonance

I/A

intelligent automation

IAC

Information Analysis Center

i.f.

intermediate frequency

i.e.

id est (that is) (use only in parentheses or footnotes, followed by a comma)

I

iodine (element, Z = 53)

ITUG

Internet Technologies Users Group

IFR

integrated fast reactor

IMB

Issues Management Board

IWMS

Integrated Work Management System

I/I

inject/inhibit

IAL

Internal Approval Listing

IAQ

indoor air quality

IAPSO

International Association for the Physical Sciences of the Ocean

IAPMO

International Association of Plumbing and Mechanical Officials

IAPI

Office of Intergovernmental Affairs and Public Information

IAP

imaging atom probe

IAN

instrument application name

IAMAP

International Association of Meteorology and Atmospheric Physics

IAAS

Integrated Analysis and Assessment Section

IALLW-CAT

isotope area liquid low-level waste collection and transfer

IABC

International Association of Business Communicators

IAHE

International Alliance for Higher Education (ORAU)

IAH

International Association of Hydrogeologists

IAG

interagency agreement

IAEA

International Atomic Energy Agency

IAE

integral of the absolute value of the error

IAD

– Immediate Action Directive
– instrument application diagram

IACCB

Indirect Allocations Configuration Control Board

IBEW

International Brotherhood of Electrical Workers

IAM

International Association of Machinists

IDY

Interim Drum Yard

IEEE

Institute of Electrical and Electronics Engineers, Inc.

IEE

– Information Engineering Environment
– Institute of Electrical Engineers

IEDMS

Integrated Electric Distribution Management Systems

IECEC

Intersociety Energy Conversion Engineering Conference

IEC

– International Electric Commission
– International Electrotechnical Commission

IEB

International Environment Bureau

IEA/ORAU

Institute of Energy Analysis/Oak Ridge Associated Universities

IDL

– instrument development loop
– Interactive Data Language
– Internal Dosimetry Laboratory (ORP)

IE

instrument engineering

IEHR

Institute for Evaluating Health Risks

IDW

investigation-derived waste

IDSA

Industrial Designers Society of America

IDOD

Interdivisional/Intercompany Operations Directive

IDO

Isotope Dilution Office

IDMS

– Integrated Database Management System
– isotope dilution mass spectrometry

IDMA

isotopic dilution and mass analysis

IDLH

immediately dangerous to life or health

IEA

– Institute of Energy Analysis (ORAU)
– International Energy Agency (of OECD)

IBC

Institutional Biosafety Committee (ORNL)

IFPE

Idaho Fuel Processing Facility

IFP

Integrated Forest Program

IFORS

International Federation of Operations Research Societies

IFIPS

International Federation of Information Processing Systems

IFIM

Instream Flow Incremental Methodology (FWS)

IFFS

Intermediate Future Forecasting System (EIA)

IFEL

Irradiated Fuels Examination Laboratory

IEF

– Information Engineering Facility
– Isotope Enrichment Facility

IFAC

International Federation on Automatic Control

IEG

Independent Evaluation Group

IF&S

integrated fire and security

ICH

ion cyclotron heating

IET

Integrated Equipment Test

IES

Illumination Engineering Society of North America

IER

independent expert review

IEPCP

Institute of Energy Problems of Chemical Physics

IEI

International Environmental Institute (Hanford)

IF

– intermediate frequency
– intermittent frequency
– Inventors' Forum

IFCAM

Industrial Fuel Choice Analysis Model

ICPAEMC

International Commission for Protection Against Environmenal Mutagens and Carcinogens

ICRP

International Commission on Radiological Protection

ICRH

ion cyclotron resonance heating

ICRF

ion cyclotron range of frequencies

ICREMS

Instrumentation and Controls Research Engineering Management Systems

ICR

– internal control review
– irradiation control room

ICPS

inductively coupled plasma spectrophotometry

ICPP

– Idaho Chemical Processing Plant
– Integrated Construction Program Plan

ICRU

International Commission on Radiation Units and Measurements

ICPC

International Congress of Pesticide Chemistry

ICP-MS

inductively coupled plasma - mass spectrometer

ICP-OES

inductively coupled plasma - optical emission spectroscopy

ICP

– incident command post
– inductively coupled plasma (emission, spectroscopy)
– Innovative Concepts Program
– Institutional Conservation Program

ICNS

Information Center on Nuclear Standards

ICM

interim corrective measure

ICI

in-core instrumentation

ICIS

Intelligent Configuration Identification System (I&C development for NASA)

IDIM

inverter-driven induction motor

IFA

information flow architecture

ICPM

Institute of Certified Professional Managers

IDCS

Integrated Distribution Control System

IDHA

International District Heating Association

IDF

induced draft fan

ICOLP

– Industry Cooperative for Ozone Layer Protection
– Information Center on Nuclear Standards

ICS

– Incident Command System
– individual control strategy
– integrated control system
– Intelligent Cognitive Systems (Group of TSRS)

IDES

Intelligent Document Evaluation System

IDEA

International Desalination and Environmental Association

IDE

Integrated Drive Electronics

IDCA

International Development Cooperation Agency

IDC

– InfoDesign Corporation
– integrated demonstration coordinator

ID

– Idaho (use only with ZIP code addresses)
– Idaho Operations Office (DOE)
– identification
– inside diameter
– inventory difference

ICSB

Instrumentation and Control Systems Branch (NRC)

ICSU

International Council of Scientific Unions

ICT

International Critical Tables

ICWM

Institute of Chemical Waste Management

IDB

– Industrial Development Bond
– instrument database
– integrated database

IDA

Institute for Defense Analysis

IDADS

Interim Data Acquisition and Display System

Idaho

(spell out unless used with ZIP code addresses)

JASPER

Japanese-American Shielding Program of Experimental Research

JFET

junction field-effect transistor

JENER

Joint (Norwegian-Dutch) Establishment (Nuclear Energy Research) Environmental Pile (see JEEP)

J.D.

Doctor of Jurisprudence

JET

ORNL-Joint European Torus

JESS

Joint Exercise Support System

JCS

Joint Chiefs of Staff

JCP

Joint Committee on Printing

JFCP

joint field command post

JCL

Job Control Language (VMS)

JCIST

Joint Center for Information Security Technology (U.S. Department of State)

JCAE

Joint Committee on Atomic Energy, U.S. Congress (now dissolved)

JEDI

joint electromagnetically launched defensive impactor

JASPAS

Japan Support Program for Agency Safeguards

JAS

Job Advertising System (exempt job listings) (see JOS)

JART

Japan Amphibious Robot

JARM

JAERI Amphibious Robot Manipulator

JAICS

Joint Institute for Applications of Computational Sciences

JAERI

Japan Atomic Energy Research Institute

JAD

Joint Analysis Directorate

J

joule

JIMO

Jupiter Icy Moons Orbiter

JPEG

Joint Photographic Experts Group

JFTR

Joint Federal Travel Regulations

JPSS

Joint Planning Staff for Space

JHA/JHI

Job Hazard Analysis/Job Hazard Identification

JACADS

Johnston Atoll Chemical Agent Disposal System

JOS

Job Opportunity System (nonexempt job listings) (see JAS)

JDT

Joint Development Team

JWT

Joint Working Team

JWS

joint work statement

JUA

Joint Use Agreement

JTU

Jackson turbidity unit

JTLS

Joint Theatre Level Simulation

JTAETU

joint test assembly early training unit

JTA

– job task analysis
– Joint Test Assembly

JSSAP

Joint Services Small Arms Program

JSA

Job Safety Analysis

JPL

Jet Propulsion Laboratory (Pasadena, California)

JPDR

Japan Power Development Reactor

JPIC

Joint Public Information Center

JOWOG

Joint Working Group

JIc

fracture toughness

JOD

joint occupancy date

JNPT

Johnson Noise Power Thermometer

JNCP

justification for noncompetitive procurement

JNACC

Joint Nuclear Accident Coordination Center

JMS

Job Management System

JIT

Just-In-Time

JIO

Joint Integration Office (TRU waste management)

JILA

Joint Institute for Laboratory Astrophysics

JIHIR

Joint Institute for Heavy Ion Research

JIEE

Joint Institute for Energy and the Environment

JID

Joint Institute Dormitory

JIC

Joint Information Center

JP

jet propulsion

JEEP

Joint (Norwegian-Dutch) Establishment (Nuclear Energy Research) Environmental Pile (see JENER)

kg·m3

kilogram cubic meter

ker

kernel (math)

KES

knowledge engineering system

keV

kiloelectron volt [convert to SI: joule (J); sometimes "eV" is acceptable]

KEW

kinetic energy weapon

KFA

Kernforschungsanlage (JÜlich, Germany)

KfK

Kernforschungszentrum Karlshrue (Germany)

kg

kilogram

Kans.

Kansas (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

kg·m2

kilogram square meter

kg-wt

kilogram-weight

kHz

kilohertz

KHQ

Kerr Hollow Quarry

KI

stress intensity factor

KIa

crack-arrest fracture toughness Ka for a crack that arrests under conditions of crack front plain strain

KIc

plain-strain fracture toughness

kip

kilopound (thousand pounds, force) [convert to SI: newton (N)]

KIRC

K-25 Site ERWM Information Resource Center (formerly ATL)

kg·m

kilogram meter

kbyte

kilobyte ("kB" is preferred)

KAPL

Knolls Atomic Power Laboratory

KAR

Kentucky Administration Regulations

KAS

Kentucky Academy of Sciences

KAS-KSNPC

Kentucky Academy of Sciences and Kentucky State Nature Preserves Commission

KATIE

Knowledge-Based Assistant for Troubleshooting Industrial Equipment

kB

kilobyte (preferred over "KB" and "kbyte")

KB

kilobyte ("kB" is preferred)

Kbps

thousand bits per second

KEP

kinetic energy penetrator

KBTC

Knoxville Building Trades Council

KEMA

Keuring van Electrotechnische Materialen

KC

Kansas City Area Office (DOE)

kcal

kilocalorie [convert to SI: joule (J)]

kCi

kilocurie [convert to SI: becquerel (Bq); sometimes "curie" is acceptable]

KCPA

Kentucky College Placement Association

KDEP

Kentucky Department for Environmental Protection

KDWM

Kentucky Department of Waste Management

KE

– Kesselring Site Office (DOE)
– kinetic energy

KJc

fracture toughness calculated from the J-integral Jc at the point of cleavage

KBS

Knowledge-Based Systems (section of C&TS)

kVp

kilovolts peak

KSR

Kendall Square Research

KSU

Kansas State University

kt

kiloton (or kilotonne) [convert to SI: kilogram (kg) for mass, joule (J) for energy, or newton (N) for force]

KUB

Knoxville Utilities Board

kV

kilovolt

kV/m

kilovolts per meter

kVA

kilovolt-ampere

KISMET

Kinematic Simulation, Monitoring, and Off-Line Programming Environment for Telerobotics

kvar

kilovar (kilovolt-ampere reactive)

KSA

Knowledge, Skills, and Abilities (U.S. Army)

kW

kilowatt

kWh

kilowatt-hour

kWh(e)

kilowatt-hour (electrical)

kWh(t)

kilowatt-hour (thermal)

KWU

Kraftwerk Union

KY

Kentucky (use only with ZIP code addresses)

Ky.

Kentucky (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Louisville)

kilohm

kVm

kilovoltmeter

KOSW

Knoxville Office of Solid Waste

KS

– Kansas (use only with ZIP code addresses)
– Kansas City Support Office (DOE)

KKR

Korringa-Kohn-Rostoker approximation method

KLT

Karhunan-Loéve transform

km

kilometer

km2

square kilometer

KMCFMT

K-25 Site Microcomputing Cross-Functional Management Team

KMS

K.M.S. Fusion (a company name)

knot

[do not abbreviate this word; convert to SI: meters per second (m/s)]

KSNPC

Kentucky State Nature Preserves Commission

KOM

kilometric wavelength

ksi

kilopounds per square inch [convert to SI: pascal (Pa)]

Kow

octanol-water partition coefficient

KPDES

Kentucky Pollutant Discharge Elimination System

Kr

krypton (element, Z = 36)

KRC

Knoxville Recycling Coalition

KrF

krypton-fluorine

KRITIC

Knowledge-Based Review and Intervention to Impose Constraints (SNL)

KRW

Kellogg-Rust-Westinghouse

kJ

kilojoule

Ko

stress intensity factor at crack initiation

KSC

Kennedy Space Center

KAFB

Kirtland Air Force Base

KACCD

Knoxville Area Community Center for the Deaf

Ka

value of stress intensity factor shortly after arrest

kA

kiloampere

K-25 Site

Oak Ridge K-25 Site (now known as East Tennessee Technology Park)

K·m

kelvin meter

K

– kelvin [plural is kelvins; SI unit of thermodynamic temperature and temperature intervals; do not use degrees or degree sign (°) with K for kelvin or kelvins (i.e., 273 K, not 273°K)]
– potassium (element, Z = 19)
– thousand(s) [when used with dollars, use only when preceded by dollar sign and one or more numbers; use no space between number and K (e.g., $3K = $3000 or three thousand dollars)]

k

– kilo [thousand, prefix (103)]
– thermal conductivity

KAFaD

K-25 Auxiliary Facility Demolition

lm

lumen

LM

– Laramie Projects Office (DOE)
– laser melting
– liquid metal
– logic modeling

LM-DAC

load management and distribution automation control

LMA

laboratory monitor (alpha)

LMB

laboratory monitor (beta)

LMCR

liquid-metal-cooled reactor

LMF

Laboratory Microfusion Facility

LLWPSS

Low-Level Waste Processing and Shipping System

LMR

liquid-metal reactor

LLRWPAA

Low-Level Radioactive Waste Policy Amendments Act of 1985

LMFBR

Liquid Metal Fast Breeder Reactor

LLWDF

– Low-Level Waste Demonstration Facility
– Low-Level Waste Disposal Facility

LLWDDD

Low-Level Waste Disposal Development and Demonstration Facility

LLWDD

Low-Level Waste Disposal and Demonstration Program

LLWD

low-level waste disposal

LMTD

logarithmic mean temperature difference

LLW

low-level (radioactive) waste

LOAEL

lowest observed adverse effect level

LLRWPA

Low-Level Radioactive Waste Policy Act

LLRW

Low-Level Radioactive Waste (Disposal Facility)

LLRAG

Low-Level Radiochemical Analysis Group (ACD)

LLNL

Lawrence Livermore National Laboratory

LLW-CAT

low-level waste collection and transfer

LOEP

loss of electric power

LOIS

loss of interim status

LOI

letter of intent

LOHS

loss of heat sink

Log

principal log (math)

log

common logarithm (math)

LOFWS

– loss of flow without scram
– loss-of-flow-without-scram (test)

LOFT

loss-of-fluid test

LOFP

loss of flow path

LOFC

loss of forced convection/circulation

LNG

liquefied natural gas

LOF

loss of flow

LMTO

linear muffin-tin orbital

LODE

Large Optical Demonstration Experiment

LOCA

loss-of-coolant accident

LOC

– letter of credit
– loss of coolant

LOB

Laboratory Operations Branch

LLE

Laboratory for Laser Energetics (University of Rochester)

LOAD

low-altitude defense

LLLWC

liquid low-level waste concentrate

LN2

liquid nitrogen

ln

natural logarithm (math)

LMU

– LincolnMemorial University
– local multiplexing unit

LOFF

loss of forced flow

LIBS

laser-induced breakdown spectroscopy

lim

limit (math)

LIGO

Laser Interferometer Gravitational Wave Observatory

LIF

Logistics Intelligence File (U.S. Army)

LIEAP

Low-Income Energy Assistance Program (DOE)

LIDT

laser-induced damage threshold

lidar

light detection and ranging

LIDS

Laboratory Issues Database System

LID

laser imaging device

LICS

local instrument and control subsystem

LLFM

low-level flux monitor

LIC

liquid incinerator

lim sup

limit superior (math)

Li3PO4

lithium orthophosphate

Li2Mn2O4

lithium manganese oxide

Li-SO2

lithium-sulfur dioxide

Li-MnO2

lithium-manganese dioxide

Li/FeS

lithium iron sulfide

LI

line item

Li

lithium (element, Z = 3)

LHRE

low-heat rejection engine

LHL

long half-life

LHH

lower hybrid heating

LiCoO2

lithium cobalt oxide

LIS

laser isotope separation

LLI

lower large intestine

LOM

Laboratory Operating Manual

LLEA

local law enforcement agency

LORC

loss of reflector coolant

LLCE

limited life component exchange

LLC

Lessons Learned coordinator

LLB

Lessons Learned Bulletin

LL

Lesson(s) Learned

LKP

Lee-Kesler-PlÖcker (model)

LITR

Low-Intensity Test Reactor

LIMB

limestone injection multistage burner

LISP

list processing

lim inf

limit inferior (math)

LiPON

lithium phosphorous oxynitride

LIP

line item project

LION

Library System On-Line Network (replaced by OASIS)

LINC

Local Information Network Connection

LiNbO3

lithium niobate

linac

linear acceleration/accelerator

lin ft

linear foot [convert to SI: meter (m)]

LIN

line item number

LIMS

Laboratory Information Management Systems

LLLW

liquid low-level (radioactive) waste

LIT

Laser Isotope Technology (program)

LHe

liquid helium

LSI

– large-scale integration
– listing site inspection

LTNIF

Low-Temperature Neutron Irradiation Facility

LTM

– Laboratory Telerobotic Manipulator (ORNL)
– long-term monitoring

LTI

linear time invariant

LTHWSF

Long-Term Hazardous Waste Storage Facility

LTH

lethality target hardening

LTF

– letter to file
– lysimeter test facility

LTER

Long-Term Ecological Reserve (NSF)

Ltd.

Limited (used with company name; comma not needed)

LTR

– loop transfer recovery
– low-temperature recycling

LTBA

likely to be available

LTRI

level and temperature recording indicator

LSV

– large-scale vehicle
– low-signature vehicle LT

L/D ratio

length-to-diameter ratio

LSU

load survey unit

LSSS

limiting safety system settings

LSSC

lump-sum subcontractor

LSS

– laboratory shift superintendent
– large-scale system

LSPTS

large-scale procurement of temperature sensors

LSPT

limited scope performance test

LSN

long- and short-normal resistivity (geophysical logging)

LOPO

Los Alamos (low-power) Boiling Water Reactor

LTC

load-tap changing

LUST

leaking underground storage tank

LWR

light-water reactor

LWOP

leave without pay

LWIR

longwave infrared

LWIC

lost-work injury case

LWD

Liquid Waste Disposal, Inc.

LWCIR

lost-workday case incidence rate

LWC

Lost Workday Cases

LWA

Lee Wan and Associates, Inc. (now Radian Corporation)

LVDT

linear variable differential transformer

LTO

– landing-takeoff
– Long-Term Operations

LUT

look-up table

LSDA

local spin density approximation

LULU

locally undesirable land use

LULAC

League of United Latin American Citizens

LUA

lead use assembly

LUFT

leaking underground fuel tank

LUB

least upper bond (preferred over "lub" and "l.u.b.") (math)

lub

least upper bond ("LUB" is preferred) (math)

Lu

lutetium (element, Z = 71)

LTT

lymphocyte transformation test

LTSF

Lid Tank Shielding Facility

LTS

Limited Technical Standard

LUTI

learn, use, train, inspect (model)

LPCE

liquid-phase catalytic exchange

LSIC

large-scale integrated circuit/circuitry

LPS

Launch Processing System

LPRM

local power range monitor (see APRM)

LPR

– lithium process replacement
– lithium process restoration
– load profile recorder

LPI

– lines per inch
– low-pressure impactor

LPGS

liquid pathway generic study

LWSP

Liquid Waste Solidification Project

LPG

– liquid propane gas
– liquified petroleum gas

lx

lux (plural is "lux" or "luxes")

LRD

Laboratory RecordsDepartment

LPD

Laboratory Protection Division (now OLP)

LR

– line recorder
– low range

LP

– linear programming
– link processor
– liquid propellant
– loop processor
– low pressure

LOX

liquid oxygen

LOV

Loveland Area Office (DOE)

LOTO

lock out/tag out

LOSC

loss of secondary coolant

LOS

– level of service
– line of sight

LORF

loss of reflector flow

LOR

low reiteration (genomic frequency sequence)

LOPC

loss-of-coolant pressure control

LOP

– Landfill Operating Permit
– loan of personnel

LPDO

Leasing Policy Development Office (DOE)

LRW

liquid radioactive waste

LSD

– least significant difference
– local spin density

LSCT

Large Superconducting Coil Task

LRMP

location referencing message protocol

LSCS

Large-Scale Climate Simulator (ORNL)

LSCME

large-scale climate-moderating envelopes

LSC

Life Safety Code

LSB

least-significant bit

LSA

– limited security area
– low specific activity

LPSI

low-pressure safety injection

LRM

long-reach manipulator

LPSRA

limited probabilistic seismic risk asssessment

long.

longitude

LRP

– Landscape Research Project (DOE)
– Local Release Point
– long-range plan

LROP

Long-Range Operating Plan

LRO

long-range order

LPT

– low-pressure turbine
– lymphocyte proliferation test

LPZ

low-population zone

LQ

linear quadratic

LQG

linear-quadratic-Gaussian

LQG/LTR

linear-quadratic-Gaussian with loop transfer

LQR

linear-guadratic regulator

Lr

lawrencium (element, Z = 103) (not "Lw")

LS

– least significant
– load specification (computer term)
– lump sum

LC

– Library of Congress
– line-commutated (inverter)
– liquid chromatographic
– load characteristics (computer term)

LCM

life cycle management

LATA

Los Alamos Technical Associates

LAW

low-activity waste

lb

– pound, avoirdupoise (16 oz) [convert to SI: kilogram (kg)]
– pound, troy (12 oz t) [convert to SI: kilogram (kg)]
– pound, apothecary (12 oz ap)[convert to SI: kilogram (kg)]

lb-ft

pound-foot [convert to SI: kilogram-meter (kg-m) or newton meter (N m)]

lb/ft3

pounds per cubic foot [convert to SI: kilograms per cubic meter (kg/m3)]

lb-in.

pound-inch [convert to SI: kilogram-centimeter (kg-cm)]

lb-mol

pound-mole [convert to SI: kilogram-mole (kg-mol)]

lbf

pound force [convert to SI: newton (N)]

lbm

pound mass [convert to SI: kilogram (kg)]

LBAD

Lexington-Bluegrass Army Depot

LBL

Lawrence Berkeley Laboratory (University of California) (now LBNL)

LASL

Los Alamos Scientific Laboratory (now Los Alamos National Laboratory)

LBU

Laboratory Business Unit

LASER

light amplification by stimulated emission of radiation

LC50

median lethal concentration (lethal concentration for 50% of a given population) (see EC50, LCLO, LD50, and LDLO)

LCA

– life-cycle analysis
– Logistic Control Activity (U.S. Army)

LCAM

Life Cycle Asset Management

LCB

Laboratory Coordination Board

LCBWS

load-cell-based weighing system

LCC

– Laboratory Communication Center
– Large Cavitation Channel (USN)
– life cycle cost

LCCDAAS

Large Cavitation Channel Data Acquisition and Analysis System (ORNL developed for USN)

lcd

least common denominator ("LCD" is preferred) (math)

LCD

– least common denominator (preferred over "lcd") (math)
– limiting conditions document
– liquid crystal display

LCF

latent cancer fatality

LCFS

last closed flux surface

LCLO

lethal concentration low (lowest concentration that is lethal) (see EC50, LC50, LD50, and LDLO)

lcm

least common multiple (math)

LBNL

Lawrence Berkeley National Laboratory (University of California) (formerly LBL)

LAB

Library Advisory Board

La

lanthanum (element, Z = 57)

LHD

Large Helical Device

LC-SEM

Large Chamber Scanning Electron Microscope

LENS

laser-engineered net shape

L

– chemical blister agent (Lewisite)
– lambert [convert to SI: candelas per square meter (cd/m2)]
– liter [cubic meter (m3) is preferred; a liter is equivalent to a cubic decimeter (dm3); the use of liter is discouraged and is restricted to volumetric capacity, dry measure, and measure of fluids (both gases and liquids); use only milli- (m) or micro- (µ) as prefixes with liter (L); sometimes "liter" is acceptable]

L.M.

load management

l.u.b.

least upper bond ("LUB" is preferred) (math)

L-G

line to ground

L-L

line to line

L&GWOD

Liquid and Gaseous Waste Operations Department (ORNL)

LA

Louisiana (use only with ZIP code addresses)

La.

Louisiana (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with New Orleans)

lat

latitude

LAAO

Los Alamos Area Office (DOE)

LANDSAT

land satellite (photographs of ground)

LABCOM

U.S. Army Laboratory Command

LACE

Light-Water Reactor Aerosol Containment Experiment

LAE

least absolute error

LAER

lowest achievable emissions rate

LAF

Lake Acidification and Fisheries (EPRI)

LAI

leaf area index

LAM

local air monitor

LAMP

–Lake Acidification Mitigation Project (EPRI)
– LODE Advanced Mirror Program

LAN

local area network

LANL

Los Alamos National Laboratory (formerly Los Alamos Scientific Laboratory)

LANMAS

Local Area Network Material Accounting System

LANTIRN

low-altitude navigation targeting infrared night

LAP

Laboratory Accreditation Program (DOE)

LAA

limited access area

lf

low frequency

LED

– Laboratory emergency director
– light-emitting diode

LEED

low-energy electron diffraction

LEFM

linear elastic fracture mechanics

LEHR

Laboratory for Energy-Related Health Research

LEL

– lower explosive limit
– lower exposure limit

LEMF

laser-excited molecularfluorescence

LEP

– Large Electron Positron (Collider) (CERN)
– low-energy photon LEPC

LEPS

low-energy photon detectors

Leq

equivalent sound level

LER

Licensee Event Report

LERC

Laboratory Emergency Response Center (ORNL)

LeRC

Lewis Research Center (NASA at Cleveland) (now known as Glenn Research Center)

LECS

local economic consequences study

LETC

Law Engineering Testing Company

LET

linear energy transfer

LF

line feed

LFA

– lead federal agency
– Leader Feedback and Action

LFABB

Laboratory Facility Authorization Basis Board

LFAO

lead federal agency official

LFFTT

load-following free terminal time

LFL

lower flammability limit

LFT

Library Functional Team

LGHR

low-grade heat recovery

LGP

Laboratory Graduate Participation

LCMM

Least Cost Mix Model

LAMPRE

Los Alamos Molten Plutonium Reactor Experiment

LH2

liquid hydrogen

LHCD

lower hybrid current drive

LES

– linear expenditure system
– local emergency supervisor

LCS

limiting control setting

LDAP

Lightweight Directory Access Protocol

LDA

– laser Doppler anemometer
– local density approximation

LD50

median lethal dose (lethal dose for 50% of a given population) (see EC50, LC50, LCLO, and LDLO)

LD

– Legionnaires' disease
– low density

LCU

– load control unit
– local control unit

LDB

legislative data base

LCT

Large Coil Task (ORNL)

LD/DCC

laser diagnostic/data concentrater and controller

LEAP

– Large Einsteinium Activation Program
– Large Experimental Aquifer Program
– Low-Weight Exoatmospheric Projectile Program

LEU

low enriched uranium

LCRS

Leachate Collection and Removal System

LCR

– load collector ratio
– load control receiver

LCP

– Large Coil Program
– liquid crystalline polymer (molecular composite)

LCO

– laboratory certification official
– limiting conditions for operation

LCTF

Large Coil Test Facility (ORNL)

LDPEX

cross-linked, low-density polyethylene (also PELX and XLDPE)

LDRO

low-data-rate operation

LDRDP

Laboratory-Directed Research and Development Program (ORNL) [formerly Exploratory Studies Program (ESP)]

LCUP

Least-Cost Utility Planning Division (of DOE)

LDC

less-developed country

LDRD

Laboratory Director's Research and Development (ORNL)

LDS

leak detection system

LDR

– land disposal regulation
– land disposal restrictions
– Land Disposal Restrictions of 1984

LDPE

low-density polyethylene (also PEL)

LEAF

Legal Environmental Assistance Foundation

Ldn y-avg

yearly average day/night sound level

Ldn

average day/night sound level

LDLO

lethal dose low (lowest dose that is lethal) (see EC50, LC50, LCLO, and LD50)

LDF

Laser Demonstration Facility (LLNL)

LDV

laser Doppler velocimeter/velocimetry

mA

milliampere

MACS

– Marine Air Corps Station
– Mobile Automated Characterization System

MA

– management and administration
– Management Assessment
– Massachusetts (use only with ZIP code addresses)
– measurement and assessment
– mechanically alloyed

MAA

– material access area
– Mathematical Association of America
– Mutual Assistance Agreement

m3

cubic meter [preferred over liters (L); see restrictions listed under "L" for "liter"]

MAACS

MELCOR Accident Consequence Code System

m2

square meter

MAADS

Modular Artillery Ammunition Delivery System (U.S. Army)

MAB

– Man and the Biosphere
– Marine Amphibious Brigade

MAC

– Management Advisory Council
– Manufacturing Analysis Center
– Military Airlift Command

MAGPI

Multi-Agency Working Group on Power Sector Innovation

MACT

– maximum achievable control technology
– maximum available control technology

MAGIC

Model of Acidification of Groundwater in Catchment

M&S

– Magnetics and Superconductivity
– maintenance and surveillance ("S&M" is preferred)

m·K

meter kelvin

MAD

– maintenance assembly and disassembly
– Measurement Applications and Development (ORNL office)

MAG

Marine Air Group

MACES

Measurement and Controls Engineering Section (I&C)

m/s

meters per second

m.

meridiem (12:00 noon)

M.A.

Master of Arts (also A.M.)

MATCS

Marine Air Traffic Control Squadron

MAILS

Multiple-Aircraft Instantaneous Line Source (model)

M.S.

Master of Science

M.D.

Doctor of Medicine

M-G

motor-generator

M-Region

Maunder region

M&TE

measuring and test equipment

M/U

maintenance/upgrade

M&C

Metals and Ceramics (Division)

M&E

material and equipment

M&I

management and integration

M&IE

meals and incidental expenses

M&H

Mason & Hanger

M&O

– maintenance and operating
– management and operating

m·kg

meter kilogram

MATD

maximum allowable time delay

MARF

Mechatronics Applied Research Facility (PNC, Japan)

MARMA

Mid-Atlantic Regional Air Management Association

MARS

Management Analysis Reporting System

MAS

– Microbeam Analysis Society
– Military Air Service

MASP

mobile automatic scanning photometer

MASS

Mobilization Automated Support System

MAT-WING

Medium Attack Wing

MATCO

Military Air Traffic Coordinating Office

MAPTIC

Manufacturing and Processing Technology Integration Center

MATEX

Matrix Extraction Code

MATMO

Medical Advanced Technologies Management Office

MATS

Military Air Transport Service

MAUC

Materials Analysis User Center (HTML)

MAW

Military Airlift Wing

M

– mega [million, prefix (106)]
– million(s) [when used with dollars, use only when preceded by dollar sign and one or more numbers; use no space between number and M (e.g., $2M = $2,000,000 or two million dollars)]

MOA

– Memorandum of Agreement
– Military Operation Area

Mass.

Massachusetts (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Boston)

MAP

– Maintenance Administrative Procedure
– Manufacturing Automation Protocol
– Mercury Assessment Program
– multielement imaging atom probe
– municipal airport

MAINS

Maintenance Information System

MAJCOM

Major Command

MAJIC

Maintenance, Accountability, Jobs, and Inventory Control System

MALS

Marine Aircraft Logistics Squadron

MAN

Molecular Anatomy (Program)

man-hour

[use "work-hour" (do not abbreviate)]

MANCOVA

multivariate analysis of covariance

MARCOR

U.S. Marine Corps

man-year

[use "work-year" (do not abbreviate)]

MAR

– major assembly release
– material at risk

MAP3S

Multistate Atmospheric Power Production Pollution Study

MAP3S/PCN

Multistate Atmospheric Power Production Pollution Study/Precipitation Chemistry Network

MAPA

Middle Atlantic Placement Association

MAPE

mean absolute percent model

MAPP

Modern Aids to Planning Program

MAPS

manpower analysis and planning survey

Maine

(spell out unless used with ZIP code addresses)

MANOVA

multivariate analyses of variance

MONT

Montrose District Office (DOE)

MOGAS

motor gasoline

MOHIS

Medical Occupational Health Information System

MOI

– management, organization, institution
– Memorandum of Intent

mol

mole

mol %

mole percent

mol. wt

molecular weight

MOSIS

– Metal-Oxide-Semiconductor Implementation System
– modular survey instrument system

MONOB

Mobile Noise Barge

MOD

motor-operated disconnect

Mont.

Montana (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

month

(do not abbreviate this word)

MORT

Management Oversight and Risk Tree

MORT/A-I

Management Oversight and Risk Tree Accident Investigation

MOS

– metal-oxide semiconductor
– military occupational specialty

MOSC

Mobil Oil Sludges

MOCA™

compound 4,4-4'-methylenebis-(2-chloroani-line) (trademark of E. I. du Pont de Nemours and Company)

MONAL

Mobile Nondestructive Assay Laboratory

Mo

molybdenum (element, Z = 42)

mmu

milli-mass-unit

MMUS

Martin Marietta Utility Services

Mn

manganese (element, Z = 25)

MN

Minnesota (use only with ZIP code addresses)

MNCV

National Capacity Variance (EPA)

MNL

multinomial logit model

MNNAS

Multichannel Narrowband Noise Analysis System (now MAX)

MODIL

Manufacturing Operations Development and Integration Laboratory

MNS

master nuclear schedule

MoD-Std

Ministry of Defense Standard (U.K.)

MO

Missouri (use only with ZIP code addresses)

Mo.

Missouri (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with St. Louis)

MO&CA

mission operations and cost analysis

MOC

– memorandum of cooperation
– mobile operations center

MOCVD

metal organic chemical vapor disposition

mod

modulus (math)

MÖss

MÖssbauer

MNP

Microcom Network Protocol

mrad

millirad [convert to SI: gray (Gy); sometimes "rad" is acceptable]

MPRE

Medium Power Reactor Experiment

MPRSA

Marine Protection, Research, and Sanctuaries Act

MPS

– microprocessor status
– Minimum Property Standards (HUD)

MPST

modified pair-selected ternary

MPT

Manpower, Personnel, and Training (USN)

mR

milliroentgen [convert to SI: coulombs per kilogram (C/kg); sometimes "roentgen" is acceptable]

MOSFET

metal-oxide-semiconductor field-effect transistor

MRAC

model reference adaptive controller

MPM

– mechanical properties microprobe
– microscopic process monitoring

MRAL

Mobile Radionuclide Analysis Laboratory

MRB

– Management Review Board
– Material Review Board

MRBM

Medium-Range Ballistic Missile

max

maximum (math)

3MSP

Medicare Major Medical Supplement Plan

m

molal

m

– meter
– milli [one-thousandth, prefix (10-3)]

MR

Material Request (AVID)

MPD

– maximum permissible dose
– Metal Preparation Division

MOTA

Materials Open Test Assembly [Facility (of FFTF)]

MOTEL

Motorola Intel

MOU

Memorandum of Understanding

MOV

– metal oxide varistor
– motor-operated valve

MOX

mixed-oxide fuel (uranium and plutonium)

MP

– major project
– melting point

MP&T

modified purge and trap vial

MPP

– massively parallel processing
– Massively Parallel Processor
– Modular Power Plant (library)
– multipinned phase

MPC

– main process cell
– maximum permissible concentration
– Metal Properties Council
– multimedia personal computer
– multipurpose canister

MPOB

maximum permissible organ burden

MPDAC

Mechanical Properties Data Analysis Center

MPE

manager of product excellence

MPF

– maximum probable flood (flooding without dam break; see PMF)
– metal parts furnace
– Metal Processing Facility

mpg

miles per gallon [convert to SI: kilometers per cubic meter (km/m3), which is preferred over kilometers per liter (km/L); see restrictions listed under "L" for "liter"]

mph

miles per hour [convert to SI: kilometers per hour (km/h) or meters per second (m/s)]

MPI

maximum permissible intake

M

molar

MPa

megapascal

MS/MS

– mass spectrometry/mass spectrometry
– tandem mass spectrometry

MSE

– molten-salt extraction
– Mountain States Energy, Inc.

MSDS

– Materials Safety Data Sheet
– Market Shares Data System

MSD

– Marketing Support Division (MMES)
– Material Sciences Division
– matrix spike duplicate

MSCR

Molten Salt Converter Reactor

MSCO

Military Sealift Command Office (Norfolk, Virginia)

MSC

– Manufacturing Skills Campus
– Military Sealift Command

MSBR

Molten Salt Breeder Reactor

MSB

most-significant bit

MSTS

microwave signal transmission system

MS&E

Materials Science and Engineering

MSEL

Master Sequence of Events List

MS

– mail stop
– mass spectroscopy
– matrix spike
– Mississippi (use only with ZIP code addresses)
– most significant
– Richter magnitude

Ms

– martinsite start temperature
– megasecond

ms

millisecond

MRSF

Monitored Retrievable Storage Facility

MRSC

maintenance and rebuild support definition

MRS

– man-robot symbiosis
– Materials Research Society
– monitored retrievable storage

mRNA

messenger RNA

MRMC

Medical Research and Material Command

MSA

– major systems acquisition
– management self-assessment
– mean-square ampere
– Metropolitan Statistical Area
– Microscopy Society of America

MSMO

major site maintenance organization

MLC

Military Liaison Committee

MSTIMP

Management of Scientific and Technical Information Management Program (DOE)

MSSE

Mathematics and Science Summer Experiences (program)

MSSA

Master Safeguards and Security Agreement

MSS

– Management Services Section (IMS)
– Mass Storage System
– multispectral scanner

MSRS

Material Safety Reference Sheet

MSRP

Molten Salt Reactor Program

MSREF

Molten Salt Reactor Experiment Facility

MSRE

Molten Salt Reactor Experiment

MSEB

Mathematical Sciences Education Board (National Research Council)

MSPB

Merit Systems Protection Board

MSEC

Materials Science and Engineering Complex

MSM

– master slave manipulator
– multivariable stability margin

MSL

– Management Systems Laboratories
– Mass Spectrometry Laboratory (ORNL)
– mean sea level (see AMSL and NGVD)
– minimum safe level

MSIV

main steam isolation valve

MSI

– motion sickness incidence
– multisensor integration

MSHA

Mine Safety and Health Administration (DOL)

MSG

– Management Services Group
– monosodium glutamate

MSFC

Marshall Space Flight Center

MSF

multistage flash

mrem

millirem (use same for plural) [convert to SI: sievert (Sv); sometimes "rem" is acceptable]

MSR

– Maintenance Service Request
– moisture separator reheater
– Molten Salt Reactor

MLRS

Multiple Launch Rocket System

MRI

magnetic resonance imaging

MMC

Martin Marietta Corporation (now Lockheed Martin Corporation)

MMARC

Martin Marietta Amateur Radio Club

MMAD

mass median aerodynamic diameter

MM-Al

total monomeric aluminum

mm3

cubic millimeter

mm2

square millimeter

MM

– Modified Mercalli
– monomethylmercury

MMCFS

Martin Marietta Corporation Foundation Scholarship

mm

millimeter

MMD

– Maintenance Management Department (I&C Division) (now TSD)
– mass median diameter

MLR

– maximum lifetime risk
– multiple linear regression

MLP

mobile launch platform

MLO

Mauna Loa Observatory, Hawaii

MLM

maintenance line management

MLLW

mixed low-level radioactive and hazardous waste

MLIS

Molecular Laser Isotope Separation

MLI

Microwave Laboratories, Inc.

MLGW

Memphis Light, Gas, and Water

MLE

– maximum likelihood estimate
– most likely exposure

mM

millimole

mmol

millimole

MSV

– mean square voltage
– modular storage vault

MRE

medical review entities

MRDL

– Measurement Research Development Laboratory (I&C Division)
– Metrology Research and Development Laboratory

MRCA

Midwest Roofing Contractor's Association

MRC

– Marine Review Committee
– Microcomputer Resource Center (ORNL)
– Mission ResearchCorporation

MRBT

multirod burst test

MMT

– Materials and Manufacturing Technology (Laboratory)
– Molten Metal Technology, Inc.

MMSC

Martin Marietta Specialty Components

MMS

– Materials Management System (ORNL)
– Minerals Management Service (DOI)
– modular modeling system

MMCF

Martin Marietta Corporation Foundation

MMPR

Maintenance Management Program Rule (also known as the Maintenance Rule)

MRF

Metal Recovery Facility

MMO

– Material Management Organization
– monooxygenase

MMMSP

Medicare Major Medical Supplement Plan

MMMS

Minerals, Metals and Materials Society

MMLC

Mobile Manufacturing Learning Center (CMT)

MMIS

Materials Management Information System

MMIC

millimeter-wave integrated circuit

MMI

– man/machine interface
– material manager's inventory
– Modified Mercalli Intensity

mmf

magnetomotive force

MMEF

Macromolecule Mapping and Engineering Facility

MMR

Massachusetts Military Reservation

MWR

maintenance work request

MYR

middle year of relicense

MYL

middle year of license

Mx

maxwell [convert to SI: weber (Wb)]

MWTF

Mixed Waste Treatment Facility

MWTC

Mountain Warfare Training Center

MWS

Missile Warning System

MW-year

megawatt-year

MW(t)

megawatt (thermal) [see MW(e)]

MSTMC

Materials and Structures Technology Management Center

MWs

megawatt-second

µA

microampere

MWPP

municipal water pollution prevention

MWPD

multiwire proportional detector

MWMF

Mixed Waste Management Facility

MWL

municipal waste leachate

MWIP

Mixed-Waste Integrated Program (DOE-EM, OTD, ORNL)

MWI

Mixed Waste Inventory

MWh

megawatt-hour

MW(e)

megawatt (electrical) [see MW(t)]

MWd

megawatt-day

MWSEP

Mixed Waste Storage Expansion Program (K-25)

µm

– micrometer
– micron (do not use "µ" alone)

MAX

Multichannel Narrowband Noise Analysis System Extension (formerly MNNAS)

MPEG

Moving Picture Experts Group

MEDR

mid-energy digital radiography

µΩ

microhm

µW

microwatt

µV

microvolt

µs

microsecond

µR

microroentgen

µN

nuclear magneton

milliohm

µM

micromolar

megohm

µL

microliter [cubic meter (m3) is preferred over liter; see restrictions listed under "L" for "liter"]

µin.

microinch

µH

microhenry

µg

microgram

µF

microfarad

µCi

microcurie [convert to SI: becquerel (Bq); sometimes "curie" is acceptable]

µC

microcoulomb

µA·h

microampere-hour

mW

milliwatt

µmol

micromole

MTG

methanol to gasoline

MWC

municipal waste combustor

MTRMPC

Middle Tennessee Regional Minority Purchasing Council, Inc.

MTR

– Materials Testing Reactor
– Military Training Route
– minimum technological requirements

MTPP

Military Traffic Management Command's Personal Property Directorate

Mton

megaton (spell out to avoid confusion with "metric ton") (see Mt)

MTMC

Military Traffic Management Command

MTM

million-ton-miles

MTL

maximum tolerable level

MTIHM

metric tons of initial heavy metal

MTSS

Metallic Thermal Storage System

MTHM

metric tons of heavy metal

MTTF

mean time to failure

MTF

– Memorandum to File
– modulation transfer function

MTDC

Manufacturing Technology Deployment Center

MTBF

mean time between failures

MTBE

methyl tertiary butyl ether

MT

– Montana (use only with ZIP code addresses)
– muffin-tin approximation

Mt

– metagon [do not abbreviate; spell out to avoid confusion with "metric ton" (see Mton)]
– meitnerium (element, Z = 109)

mT

millitesla

MSWU

million separative work units

MSW

municipal solid waste

MTI

Mechanical Technology, Inc.

MURR

Missouri University Research Reactor

MV

megavolt

MVST-CIP

Melton Valley Storage Tank Capacity Increase Project

MVST

Melton Valley storage tanks

MVS

Multiple Virtual Storage

MVMA

Motor Vehicle Manufacturers Association

MVIP

Machine Variables Instrument Package

Mvar

megavar (megavolt-ampere reactive)

mV/m

millivolts per meter

mV

millivolt

MTS

methyltrichlorosilane

MUSC

Medical University of South Carolina

MW

– megawatt
– mixed waste
– molecular weight
– monitoring well

MUOM

monolithic uranium oxide material

MUG

meter-under-glass (method)

MUF

materials unaccounted for

MUDSO

Maintenance and Utilities Standing Order

MUD

Maintenance and Utilities Division (now FMD)

MU

measurement unit

MTX

Microwave Tokamak Experiment

MTU

– materials test unit
– metric ton unit
– metric tons of uranium
– mobile treatment unit

MTTR

mean time to repair

MUX

multiplexer

MDNR

– Maryland Department of Natural Resources
– Missouri Department of Natural Resources

MECS

Minnesota Energy Conservation Service

MECL

Motorola emitter coupled logic

MEC

Model Energy Code

ME

– Maine (use only with ZIP code addresses)
– Metairie Site Office (DOE)

MDU

modular disposal unit

MDSU

Mobile Diving Salvage Unit

MDS

monitoring and display system

MDRL

Metrology Research and Development Laboratory

mF

millifarad

MDP

Methanol Demonstration Program

MEHC

metallurgical examination hot cell

MDMS

Maintenance Data Management System

M&PS

Micrographics and Printing Services (IMS) (formerly P&DS)

MDL

– Mechanical Development Laboratory
– method detection limit

MDIF

metal-dielectric interference filter

MDEG

Model and Data Evaluation Group

MDD

modified direct denitration

MDB

Munitions Demilitarization Building

MDAC

McDonnell Douglas Astronautics Company

MDA

– Material Disposal Area
– minimum detectable activity

MDRC

Multichannel Digital Recorder Controller

MER

medium reiteration (genomic frequency sequence)

mf

medium frequency

MeV

megaelectronvolt (million electron volts or 106 volts) [convert to SI: joule (J); sometimes "eV" is acceptable]

MEU

– multiport Ethernet unit (computer term)
– medium-enriched uranium

METS II

Mechanized Export Traffic System II

METS

Mechanized Export Traffic System

METR

Man Equivalent Telerobot

METF

Medium Energy Test Facility

METC

– Medium Energy Technology Center
– Morgantown Energy Technology Center

MET

Monitoring Engineering Team

MED

Manhattan Engineering District

MERL

Municipal Environmental Research Laboratory

MEE

maximum expected earthquake

meq

milliequivalent

MEPAS

Multimedia Environmental Pollutant Assessment System

MEP

– Maintenance Engineering Procedure
– mobile electric power

MEOR

microbially enhanced oil recovery

MEL-FS

Multiprogram Energy Lab - Facilities Support Programs MENS

MEL

– master equipment list
– modular electromagnetic levitator

MEK

methyl ethyl ketone

MEI

– maximum exposed individual
– minority educational institution

Md

mendelevium (element, Z = 101)

MESA

Mining Enforcement and Safety Administration (DOI)

MBM

model-based manufacturing

Md.

Maryland (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Baltimore)

MC

– major component
– Management Council
– military characteristic
– mirror coil
– Monte Carlo

Mbyte

megabyte ("MB" is preferred)

MBWA

management by walking around

MBTTC

Minority Business Technology Transfer Consortium

MBtu

million British thermal units [convert to SI: joule (J)]

MBR

material balance report

Mbps

million bits per second

MBP

monobutyl phosphate

MCA

– Manufacturing Competitiveness Alliance (DOE, TVA)
– maximum credible accident
– Metropolitan Calling Area
– multichannel analyzer

MBMA

Metal Building Manufacturers Association

MCAGCC

Marine Corps Air Ground Combat Center

MBE

molecular beam epitaxy Mbit

MBD

million barrels per day [convert to SI: million cubic meters per second (m3 × 106/s)]

MBCHDM

Mouse Breeding Center for Human-Disease Models

MBC

model-based compensator

MBA

material balance area

MB

megabyte (preferred over "Mbyte")

mb or mb

body-wave magnitude

ML

material list

MVA

megavolt-ampere

MBO

management by objective

MCLG

maximum contaminant level goal

MCFC

molten carbonate fuel cell

MCV

model containment vessel

MCU

– master control unit
– meter control unit

MCSC

multichannel scaler chip

MCSA

motor current signature analysis

MCS

– Maneuver Control System (U.S. Army)
– Medco Containment Services
– model conservation standards
– multiple chemical sensitivity

MCRD

Marine Corps Recruit Depot

MCRC

Marine Corps Recruiting Center

MCPA

Midwest College Placement Association

MC&A

material control and accountability

MCM

multichip module

MD

– machine design
– Maintenance Division (K-25)
– Maryland (use only with ZIP code addresses)

MCL

– maximum concentration limit
– maximum contaminant level
– maximum contaminant limit

mCi

millicurie [convert to SI: becquerel (Bq): sometimes "curie" is acceptable]

MCFH

million cubic feet per hour [convert to SI: million cubic meters per second (m3 × 106/s)]

MCF

million cubic feet [convert to SI: million cubic meters (m3 × 106), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

MCDEC

Marine Corps Development and Education Command

MCCI

molten-core - concrete interaction

MCCB

machine configuration control board

MCC

– master control card
– Materials Characterization Center
– Microelectronics and Computer Technology Center (Austin, Texas)
– module control computer
– Motor Control Center

MCB

– main control board
– Marine Corps Base

MCP

– Military Construction Program
– mobile commandpost

MIL-STD

military standard

MINSY

Mare Island Naval Ship Yard

Minn.

Minnesota (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Minneapolis or St. Paul)

min

– minimum (math)
– minute

MIMO

multiple input/multiple output

MIME

Multipurpose Internet Mail Extension

MIMD

multiple instruction, multiple data

mils/year

mils per year [do not abbreviate either of these words; convert to SI: meters per year (m/year)]

mill

(do not abbreviate this word)

MILES

Multiple Integrated Laser Engagement System

microequivalent

(do not abbreviate this word)

mile

[do not abbreviate this word; convert to SI: kilometer (km)]

MIPS

millions of instructions per second

Milspec

military specification

mil

[do not abbreviate this word; convert to SI:meter (m)]

MIG

– maintenance importance generator
– metal inert gas

MIF

Materials Radiation Facilities (HFIR)

MIE

major item of equipment

MIDP

Management Intern Development Program

MIDAS

Maintenance Information and Data Acquisition System

MIDAC

Michigan Digital Automatic Computer

MID

– Mechanical Inspection Department
– Merced Irrigation District
– momentum-induced discrimination

mile2

square mile [do not abbreviate either of these words; convert to SI: square meter (m2)]

MIUS

Modular Integrated Utility Systems

mL

milliliter [cubic meter (m3) is preferred; see restrictions listed under "L" for "liter"]

MKSA

meter-kilogram-second-ampere (measurement system; replaced by SI) ("mksa" is preferred)

MCE

– maximum credible event
– Metrology Center of Excellence

MFA

multifunctional appraisal

mksa

meter-kilogram-second-ampere (measurement system; replaced by SI) (preferred over "MKSA")

MKS

meter-kilogram-second (measurement system; replaced by SI) ("mks" is preferred)

mks

meter-kilogram-second (measurement system; replaced by SI) (preferred over "MKS")

MK-F

MK-Ferguson of Oak Ridge Company

MJR

Maintenance Job Request

MIP

Maintenance Implementation Plan (I&C Division)

MIVRML

Mobile In-Vitro Radiation Monitoring Laboratory

MIPR

Military Interdepartmental Purchase Request

MITI

Ministry of International Trade and Industry (Japan)

MIT

– Massachusetts Institute of Technology (Cambridge, Massachusetts)
– mechanical integrity test

MIST

Minor Isotopes Safeguards Technique

Miss.

Mississippi (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

MISM

Major Item System Mapping (project)

MIS

– Major Item System
– management information system
– Mobile IncinerationSystem (EPA)

MIRT

minority institution research travel

MIRACL

mid-infrared advanced chemical laser

MIR

– major impact report
– maximum individual risk
– Medical Incident Report

MIRV

multiple independently targeted reentry vehicle

MJ/m3

megajoules per cubic meter MJ

MFO

mixed-function oxidase (enzyme system)

Mg(NO3)2

magnesium nitrate

MgCl2

magnesium chloride MgF2

Mgd

million gallons per day [convert to SI: million cubic meters per second (m3 × 106/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

MGA

Mitchell and Gauthier Associates

mG

milligauss

Mg

– magnesium (element, Z = 12)
– megagram (or megaton)

mg

milligram

MFTF

Mirror Fusion Test Facility (LLNL)

MFT

Manufacturing Evaluation Team

MgO

magnesium oxide

mfp

mean free path

MFSS

Master Fan Shutdown System (ORNL)

MFLOPS

millions of floating-point operations per second (measure of computer processing capability)

MFI

multifamily energy-use index

Mfg.

Manufacturing (spell out in text; abbreviate in references, lists, tables, footnotes, bibliographies, and indexes)

MFEP

Magnetic Fusion Energy Program

MICOM

Missile Command (U.S. Army)

MIS-CD

Major Item System Code

MFE

magnetic fusion energy

MFD

magnetic flux density

MFC

mass flow controllers

MFCDL

Mass Flow Controller Development Laboratory (I&C Division)

Mfr.

Manufacturer (spell out in text; abbreviate in references, lists, tables, footnotes, bibliographies, and indexes)

MHLQR

multiple-hazard, limited-quantity, radioactive

MI

– Michigan (use only with ZIP code addresses)
– mineral insulated

MIA

– Missing in Action
– Multivendor Integration Architecture

MFR

– Memo for Record
– U.S. Navy multifunction RADIAC instrument

MGMS

matrix-induced-gradient magnetic separation

MIBK

methyl isobutyl ketone

MHz

megahertz

MICA

Modular Integrated Control Architecture (ORNL)

MHTGR

modular high-temperature gas-cooled reactor

mho

[do not abbreviate this word; convert to SI: siemens (S)]

MHDM

– materials handling demonstration module
– materials handling development module

Mich.

Michigan (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Detroit)

MHD

magnetohydrodynamic(s)

MH

– mail handler (UNIX)
– maintenance hole (formerly "manhole")

mgpd

million gallons per day

MGPF

multiprogram general-purpose facility

mH

millihenry

mgr.

manager

MHD-EMP

magnetohydrodynamic electromagnetic pulse

MHRS

Modified Hazard Ranking System (DOE)

mgt.

management

NORM

naturally occurring radioactive material

NOPI

notice of program interest

NOPR

Notice of Proposed Rulemaking

NORA

National Oil Recyclers Association

NORAD

North American Defense Command

NORC or NoRC

nonrecord copy

NOTS

Naval Ordnance Test Station

NOS

– Naval Ordnance Station
– not otherwise specified

NOO

naturally occurring organism

NORS

National Organics Reconnaissance Survey

NOEL

no observed effect level

NORPAX

North Pacific Expedition

NOTU

Naval Ordnance Test Unit

NODC

National Oceanographic Data Center

NOAEL

no observed adverse effect level

NOBCChE

National Organization for the Professional Advancement of Black Chemists and Chemical Engineers

NOC

Naval Ordnance Center

NOAC

Nuclear Operations Analysis Center (formerly NSIC)

NPL

National Priorities List

NOUE

notification of unusual event

NOI

– notice of intent
– Notice of Involvement

NOD

– nitrogenous biochemical oxygen demand
– notice of deficiency

NONRAD

nonradioactive

NOEC

no-observed-effect concentration

NOF

Nuclear Orientation Facility

NOL

Naval Ordnance Laboratory

NOM

natural organic matter

NOA

notice of availability

NOMS

National Organics Monitoring Survey

NON

notice of noncompliance

NOAA

National Oceanic and Atmospheric Administration

NPR-HWR

New Production Reactor - Heavy-Water Reactor

NPET

natural phenomena evaluation team

NPMA

National Purchasing Managers Association

npn

negative-positive-negative (transistor)

NPO

– National Waste Terminal Storage Program Office
– Naval Petroleum and Oil Shale Reserves

NPP

– National Photovoltaics Program
– Net Primary Production
– net primary productivity
– nuclear power plant

NPPC

Northwest Power Planning Council

NPEO

nuclear plant equipment operator

NPR

– Naval Petroleum Reserves in California
– new production reactor

NPE

– natural phenomena evaluation
– Nuclear Plant Experience (report)

No(s).

number(s) [use only when followed by number(s)]

NLS

National Launch System (NASA)

NPRA

National Petroleum Refiners Association

NPRDC

Navy Personnel Research and Development Center (San Diego)

NPRM

notice of proposed rulemaking

NPRDS

Nuclear Plant Reliability Data System

NPPHSL

National Priority Pollutant and Hazardous Substance List

NPB-GTF

Neutral Particle Beam - Ground Test Facility

NOX

oxides of nitrogen

Np

– neper
– neptunium (element, Z = 93)

NP

– natural phenomena
– neutron porosity (geophysical logging)

NPA

– National Planning Association
– neutral particle analyzer
– Nuclear Plant Analyzer

NPAP

Nuclear Plant Aging Program

NPAR

Nuclear Plant Aging Research (program, NRC)

NPH

normal paraffin hydrocarbon

NPB

neutral particle beam

NOV

Notice of Violation

NPC

– National Petroleum Council
– National Prototype Center

NPCA

National Parks and Conservation Association

NPCS

nuclear power control system

NPDES

National Pollutant Discharge Elimination System

NPDWR

National Primary Drinking Water Regulations

NPDWS

National Primary Drinking Water Standards

NPARP

Nuclear Plant Aging Research Program (NRC)

NM

– nautical mile
– New Mexico (use only with ZIP code addresses)

NLTNIF

National Low-Temperature Neutron Irradiation Facility

NLDP

National Laboratory Discount Program

NLM

National Library of Medicine

NLO

National Lead of Ohio

NLRB

National Labor Relations Board

NJI&I

New Jersey, Indiana, and Illinois Railroad

nm

nanometer

NJDEP

New Jersey Department of Environmental Protection

NMA

– National Management Association
– National Microfilm Association
– National Micrographic Association

NMAS

National Map Accuracy Standards

NMC

– Network Management Center (C&TS)
– network management console (computer term)

NMC&A

– nuclear materials control and accountability
– Nuclear Materials Control and Accountability Organization

NMEID

New Mexico Environmental Improvement Division

NMF

Navy Management Fund

NLT

no later than

NIRS

National Inorganics and Radionuclides Survey

NIPDWR

National Interim Primary Drinking Water Regulations

NIPDWS

National Interim Primary Drinking Water Standards

NTTIS

National Truck Trip Information Survey

NPRP

New Production Reactor Program

NIPER

National Institute for Petroleum and Energy Research (Bartlesville, Okla.)

NLC

– National Laboratory Consortium
– National League of Cities

NIRP

National Institute for Radiation Protection

NMFS

National Marine Fisheries Service

NISS

not in sources searched (MSDS)

NIST

National Institute of Standards and Technology (formerly NBS)

NITT

National Institute for Technology Training (Mississippi State University)

NIU

network interface unit (computer term)

NIVHS

National Intelligent Vehicle Highway System

NJ

New Jersey (use only with ZIP code addresses)

NIR

nonionizing radiation

NNS

nonnuclear safety

NMSSS

nuclear material safeguarded shipping and storage

NMWQCCR

New Mexico Water Quality Control Commission Regulations

NNAPB

nearest-neighbor antiphase boundary

NNET

neural network

NNI

nonnuclear instrumentation

NMFECC

National Magnetic Fusion Energy Computer Center

NNNAPB

next-nearest-neighbor antiphase boundary

NMR

nuclear magnetic resonance ("nmr" is preferred)

NNSA

National Nuclear Security Administration

NNSR

nonattainment new source review (see NSR)

NNWSI

Nevada Nuclear Waste Storage Investigation (project)

No

nobelium (element, Z = 102)

NO

nitrogen oxide

NO2

nitrogen dioxide(s)

NNK

nonnuclear kill (weapon)

NMM

nuclear materials management

NOx

nitrogen oxide(s)

NMHA

National Mental Health Association

NMHC

nonmethane hydrocarbon

NMIA

Nuclear Material Inventory Assessment

NMIS

– Nuclear Material Information System (now NMMSS)
– Nuclear Materials Inventory System

NML

New Material Laboratory

NMSS

Office of Nuclear Material Safety and Safeguards (NRC)

NMLT/SFT

New Material Laboratory Test/Surveillance Flight Test

NMS&MC

Nuclear Monitoring Systems and Management Corporation

NMMSS

Nuclear Materials Management and Safeguards System (formerly NMIS)

NMOS

nonvolatile metal-oxide semiconductor

NMP

Nuclear Materials Production (DOE)

NMPC

Naval Military Personnel Command

nmr

nuclear magnetic resonance (preferred over "NMR")

NMFFS

Navy Mobility Fuels Forecasting System

NMLT

New Material Laboratory Test

NTSB

National Transportation Safety Board

NSPP

Nuclear Safety Pilot Plant

NTLL

Nevada Test Site, Lawrence Livermore National Laboratory

NTM

– Nevada Test Site, Mercury
– nonterrestrial materials

NTN

National Trends Network

NTP

–National Toxicology Program
– Network Time Protocol
– normal temperature and pressure (see STP)
– notice to proceed
– nuclear thermal propulsion

NTK

need to know

NTS

– Nevada Test Site [now known as Nevada National Security Site (NNSS)]
– not to scale

NTIS

National Technical Information Service (Springfield, Virginia)

NTTC

Naval Technical Training Center

NTU

– National Technological University
– nephelometric turbidity unit
– Nuclear Test Unit

NUFS

National Utility Financial Statement (model)

NUHOMS

Nutech Horizontal Modular System

NUMAC

nuclear measurement, analysis, and control

NUMARC

Nuclear Management and Resources Council

NTRC

National Transportation Research Center

NSWI

National Safe Workplace Institute

NTSC

National Television Standard Code

NSR

new source review (see NNSR)
Nuclear Safety Review

NSRR

– Nuclear Safety Research Reactor
– Nuclear Safety Review Request

NSS

– National Scoring System
– National Stockpile Site
– National Stream Survey

NSSI

Nuclear Source Services, Inc. (Houston)

NTLA

Nevada Test Site, Los Alamos National Laboratory

NSWC

Naval Surface Warfare Center (see CD/NSWC and DD/NSWC)

NUREG

Nuclear Regulatory Guide (NRC reports category)

NSWMA

National Solid Waste Management Association

NSWS

National Surface Water Survey (EPA)

NT

not tested

NTACS

National Truck Activities and Commodities Survey

NTC

– National Toxics Campaign
– Naval Training Center

NTEP

National Teacher Enhancement Program

NSSS

nuclear steam supply system

NY

– New York (state) (use only with ZIP code addresses)
– New York Support Office (DOE)

NWPA

Nuclear Waste Policy Act of 1982 (see NWPPA)

NWPPA

Nuclear Waste Policy Act Amendments of 1987 (see NWPA)

NWR

national wildlife refuge

NWS

– National Water Survey (NAPAP)
– National Weather Service
– National Wilderness System
– Naval Weapons Station

NWTP

Nonradiological Wastewater Treatment Project

NUMEC

Nuclear Materials and Equipment Corporation

NWWA

National Water Well Association

NWF

National Wildlife Federation

NYMEX

New York Mercantile Exchange

NYSDEC

New York State Department of Environmental Conservation

NYSERDA

New York State Energy Research and Development Administration

NZ

noise zone

NIOSH

National Institute for Occupational Safety and Health

NDR

Norris Dam Reservation (TVA)

NWTS

National Waste Terminal Storage

NWA

national wilderness area

NSPO

National Security Program Office

NUREPO

National Uranium Resource Evaluation ProjectOffice

NUSC

Naval Underwater Systems Center

NUS

Nuclear Utility Services Corporation

NUWES

Naval Undersea Warfare Engineering Station

NV

– Nevada (use only with ZIP code addresses)
– Nevada Operations Office (DOE)

NWIS

Nuclear Weapons Information System

NVLAP

National Voluntary Laboratory Accreditation Program

NWIG

Nuclear Weapons Information Group

NWAC

Naval Weapons Assessment Center

NWC

Nuclear Weapons Complex (replaced by NSE, Nuclear Security Enterprise)

NWCF

New Waster Calcining Facility

NWCRS

Nuclear Weapons Complex Reconfiguration Site (Complex 21)

NWEA

National Wood Energy Association

NURE

National Uranium Resources Evaluation

NVI

normalized difference vegetation index

NRL

Naval Research Laboratory

NSPS

– New Source Performance Standards (EPA)
– New Source Protection Standards (EPA)

NREL

National Renewable Energy Laboratory (Golden, Colo.)

NREP

National Registry of Environmental Professionals

NRF

Naval Reactors Facility

NRHP

– National Register of Historic Places
– National Research Home Park (NAHB)

NRDC

– National Resources Defense Council
– Natural Resources Defense Council

NRI

– National Resource Inventory
– National Rivers Inventory

NRDA

Natural Resources Damage Assessment

NRMMA

Nonradioactive Materials Management Area

NRNL

National Register of Natural Landmarks

NRP

National Resource Plan

NRPB

National Radiological Protection Board

NRR

Office of Nuclear Reactor Regulation (NRC)

NRRC

Nuclear Research Review Committee (National Academy of Sciences)

NRHS

National Register of Historic Sites

NQAA

National Quality Assurance Agency

NPSD

– noise power spectral density
– normalized power spectral density

NPSH

net positive suction head

NPSRC

National Park Service Research Center (University of Wyoming)

NPTS

Nationwide Personal Transportation Survey

NPV

net present value

NRECA

National Rural Electric Cooperative Association

NQA-1

Quality Assurance Standards for Nuclear Facilities (ANSI/ASME NQA-1)

NRS

nonreactor safety

NQR

nuclear quadrupole resonance

NRA

– National Rifle Association
– nuclear reaction analysis
– Nuclear Regulatory Agency

NRAS

neutron resonance absorption spectroscopy

NRC

– National Research Council (NAS)
– National Response Center
– Nuclear Regulatory Commission
– Nuclear Research Corporation

NRCA

National Roofing Contractors Association

NRCC

National Research Council of Canada

NQA

nuclear quality assurance

NSN

national stock number

NSE

– Nuclear Security Enterprise
– neutron spin echo

NSF

– National Sanitation Foundation
– National Science Foundation
– Neutron Scattering Facility

NSFO

Naval Special Fuel Oil

NSI

National Security Information

NSIC

Nuclear Safety Information Center (now NOAC)

NRRI

National Regulatory Research Institute

NSMS

Network Security Management System

NSC

– National Safety Council
– National Security Complex
– National Security Council
– Naval Supply Center

NSNS

National Spallation Neutron Source (currently known as Spallation Neutron Source)

NSO

Nuclear Safety Organization

NSP

Northern States Power Company, Inc. (also NSPC)

NSPC

Northern States Power Company, Inc. (also NSP)

NSPE

National Society of Professional Engineers

NSPI

National Society for Performance and Instruction

NSLS

National Synchrotron Light Source (BNL)

Ns

nielsbohrium (element, Z = 107)

NPS

– National Park Service
– National Permit Strategy
– Nuclear Packaging Systems

NRT

– National Response Team
– NEPA Review Team

NRTA

near-real-time accounting

NRTS

National Reactor Testing Station (Idaho)

NRWTF

Nonradiological Wastewater Treatment Facility

NRWTP

nonradiological wastewater treatment plant/program (ORNL)

NSDWR

National Secondary Drinking Water Regulation

ns

nanosecond

NSCANS

National Steering Committee for an Advanced Neutron Source

NS

– nuclear safety
– nuclear ship

NSA

– National Security Agency
– national security area

NSAC

Nuclear Safety Analysis Center (EPRI)

NSBE

National Society of Black Engineers

NSBE-AE

National Society of Black Engineers - Alumni Extension

NRRPT

National Registry of Radiation Protection Technologists (see also RRPT)

NRZI

nonreturn-to-zero, inverted

NAVORD

Naval Ordnance Laboratory

NATTS

Naval Air Turbine Test Station

NAV

Norton Anti-Virus

NAVAIR

Naval Air Systems Command

NAVFAC

Naval Facility(ies)

NAVMAS

Navy Management Systems

NB

Nebraska (use only with ZIP code addresses)

NAVMIS

Navy Manpower Information System

NATAS

National Appropriate Technology Assistance Service

NAVSEA

Naval Sea Systems Command

NAVSUP

Naval Supply Systems Command

NAVWESA

Naval Weapons Engineering Systems Activity

NAWAS

National Warning System

NAWQA

national water quality assessment

NAPM

National Association of Purchasing Management

NAVMASSO

Navy Management Systems Support Office

NAS

– National Academy of Sciences
– Naval Air Station
– neutron assay system

NCP

– National Contingency Plan
– National Oil and Hazardous Substances Pollution Contingency Plan (referred to as "National Contingency Plan")

NARDAC

Naval Regional Data Automation Center

NARL

Naval Arctic Research Laboratory

NARM

– naturally occurring and accelerator-produced radioactive materials
– nonazeotropic refrigerant mixture

NARS

National Archives and Records Service

NARU

Naval Air Reserve Unit

NATTC

Naval Air Technician Training Center

NaS

sodium sulfide

NATO

North Atlantic Treaty Organization

NASA

National Aeronautics and Space Administration

NASAP

Nonproliferation Alternatives Systems Assessment Program

NASP

national aerospace plane

NASQUAN

National Stream Water Quality Accounting Network

NAT

nuclear assembly test

NBAR

nonbinding preliminary allocations of responsibility

NARUC

National Association of Regulatory Utility Commissioners

NCI

National Cancer Institute

NCBR

Near-Commercial Breeder Reactor

NCC

– National Climatic Center
– National Computing Center (Woodlawn, Maryland)

NCCEM

National Coordinating Council on Emergency Management

NCEL

Navy Civil Engineering Laboratory

nCFS

Network Central File Server

Nb

niobium (element, Z = 41)

NCHGR

National Center for Human Genome Research

NCAR

National Center for Atmospheric Research (NOAA)

NCL

– National Contract Laboratory (EPA)
– U.S. Navy Calibration Laboratory

NCLAN

National Crop Loss Assessment Network (EPA)

NCMA

– National Concrete Masonry Association
– National Contract Management Association

NCMS

National Center for Manufacturing Science

NCN

nonconformance notice

NCO

noncommissioned officer

NCG

– National Committee on Geology (National Academy of Sciences)
– noncondensible gas

NC

– noncarcinogenic
– North Carolina (use only with ZIP code addresses)
– numerical control

NBC

nuclear, biological, and chemical

NBECS

Nonresidential Buildings Energy Consumption Survey

NBI

– neutral beam injection
– nuclear burst indicator

NBL

New Brunswick Laboratory

NBMI

National Building Materials Inventory (program)

NBP

normal boiling point

NCATH

National Campaign Against Toxic Hazards

NBSR

National Bureau of Standards Reactor

NCASI

National Council on Air and Stream Improvement

NCA

– National Coal Association
– National Command Authority
– Noise Control Act

NCA&TSU

North Carolina A

NCAI

National Congress of American Indians

NCAM

National Center for Advanced Materials (LBL)

NCAMP

National Coalition Against the Misuse of Pesticides

NAPL

nonaqueous phase liquid

NBS

National Bureau of Standards (now NIST)

NACB

National Academy of Clinical Biochemistry

NAA

– National Association of Accountants
– neutron activation analysis
– Neutron Activation Analysis [Laboratory (facility at HFIR)]

NAACP

National Association for the Advancement of Colored People

NAAF

Naval Auxiliary Air Facility

NAAQS

National Ambient Air Quality Standards

NAB

Naval Amphibious Base

NADC

Naval Air Development Center

NACA

– National Advisory Committee for Aeronautics
– National Agricultural Chemicals Association

Na

sodium (element, Z = 11)

NACE

National Association of Corrosion Engineers

NACEPT

National Advisory Council for Environment Policy and Technology

NACETT

National Advisory Council for Environmental Technology Transfer

NACHP

National Advisory Council on Historic Preservation

NACIP

Naval Assessment and Control of Installation Pollutants

NARA

– National Archives and Record Administration
– Network Address Registration and Assignment

NAC

– National Asbestos Council
– Naval Avionics Center
– Nuclear Assurance Corporation

N.Y.

New York (state) [use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Buffalo or New York (City)]

N

– density (number of particles per unit of volume)
– neutron number [neutron number = mass number - atomic number (N = A - Z)]
– newton
– nitrogen (element, Z = 7)

N

normal (concentration)

n. (nn.)

footnote(s) [use when followed by number(s) in citations]

N.C.

North Carolina (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

N.D.

North Dakota (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

N.H.

New Hampshire (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

NA

– North America(n)
– not applicable
– not available

N.M.

New Mexico (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

Na/S

sodium sulfur

N·m

newton meter

n-type

negative electrical carrier

N/A

not applicable (also NA)

N2

nitrogen gas

N2O

nitrous oxide

NADEP

Naval Air Depot

N.J.

New Jersey (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

NaNO3

sodium nitrate

NIMBY

Not in My Back Yard!

NaK

sodium-potassium eutectic

NALC

Naval Aviation Logistics Center

NALDA

Naval Aviation Logistics Data Analysis

NALMS

North American Lake Management Society

NAD

nuclear accident dosimeter

NAM

National Association of Manufacturers

NAHB

National Association of Home Builders

NaOCl

sodium hypochlorite

NAPAP

National Acid Precipitation Assessment Program

NAPC

Nonradioactive Air Pollution Control

NAPCA

National Air Pollution Control Administration

NAPCE

North American Phillips Consumer Electronics

NAPCTAC

National Air Pollution Control Technologies Advisory Committee

NALR

National Acid Lake Registry

NAEP

National Association of Environmental Professionals

NADP

– National AtmosphericDeposition Program (EPA)
– nicotinamide adenine dinucleotide phosphate

NADTP

National Association of Desktop Publishers

NAE

National Academy of Engineering

NAEC

Naval Air Engineering Center

NAECA

National Appliance Energy Conservation Act

NAEG

Nevada Applied Ecology Group

NAIC

National Association of Insurance Commissioners

NAEM

National Association for Environmental Management

NDT

– nil-ductility - transition temperature
– nondestructive testing

NAERC

North American Electric Reliability Council

NAF

– nonappropriated fund
– number, address, function code

NAFTA

North American Free Trade Agreement

NAG

Numerical Algorithm Group

NAGRA

National Cooperative for the Storage of Radioactive Waste

NAIRFA

Native American Indian Religious Freedom Act

NAEIC

Nevada Applied Ecology Information Center

NG

newly generated

NFMA

National Forest Management Act of 1976

NFP

National Fusion Program

NFPA

National Fire Protection Association

NFPC

National Fire Protection Code

NFS

– Network File Server
– Network File Services
– Network File System
– Nuclear Fuel Services

NGS

– National Geodetic Survey (formerly U.S. Coast and Geodetic Survey)
– National Geographic Society
– neutral gas shielding
– nuclear generating station

ng

nanogram

NFA

no further action

NGA

National Governors' Association

NGB

National Guard Bureau

NGL

natural gas liquid

NGP

National Group Process

NGPA

National Gas Policy Act of 1978

NESC

– National Electric Safety Code
– National Energy Software Center
– National Environmental Supercomputing Center

NFTCP

Nuclear Facility Training Coordination Program

NETP

Nuclear Engineering Training Program

NESCAUM

Northeast States for Coordinated Air Use Management

NESDIS

National Environmental Satellite Data and Information Service (NOAA)

NESHAP

National Emission Standards for Hazardous Air Pollutants

NEST

nuclear emergency search team

NET

Nuclear Engineering Technologies

NETA

National Environmental Training Association

NFIP

National Flood Insurance Program

NETL

National Energy Technology Laboratory

NFD

no fuel damage

NETPEM

Network Performance Evaluation Model

Nev.

Nevada (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Las Vegas)

NEVOO

Nevada Operations Office (DOE)

NEWMA

Northeast Waste Management Alliance

NF

national forest

NGVD

National Geodetic Vertical Datum (replaces mean sea level)

NETG

National Education Training Group

NIGS

National Institute of General Sciences

NICLM

noninvasive coolant level indicator

NIEHS

National Institute of Environmental Health Sciences

NIER

National Institute for Environmental Renewal

NIF

National Ignition Facility (world's largest laser, proposed for LLNL)

NIFS

Nagoya Institute for Fusion Science (Japan)

NGPM

new-car gallons per mile

NIGMS

National Institute of General Medical Sciences

NIBS

National Institute of Building Sciences

NIH

National Institutes of Health

NiH2

nickel hydride

NII

Nuclear Installation Inspectorate (U.K.)

NIM

nuclear instrument module

NCPC

Navy Civilian Personnel Center

NAHB/RF

National Association of Home Builders Research Foundation

NIGEC

National Institute for Global Environmental Change

NHPP

National Heat Pump Program

NH

– New Hampshire (use only with ZIP code addresses)
– Northern Hemisphere

NH3

ammonia

NHBA

National Home Builders Association

NHE

National Housing Endowment

NHF

New Hydrofracture Facility

NHM

National Historical Monument

NICHHD

National Institute of Child Health and Human Development

NHPA

National Historic Preservation Act of 1966 (Amendments of 1980)

NIC

– Network Interface Card
– newly industrialized country

NHTSA

National Highway Traffic Safety Administration

Ni

nickel (element, Z = 28)

Ni3Al

nickel aluminide

NIAID

National Institute for Allergy and Infectious Diseases

NIAS

Neutron Interrogation Assay System (LANL)

NHLBI

National Heart, Lung, and Blood Institute

NHP

New Hope Pond

NDAA

National Defense Authorization Act

NDRO

nondestructive readout

NCWP

Nuclear and Chemical Waste Program

nd

– no date
– not detected

Nd

neodymium (element, Z = 60)

Nd:YAG

neodymium:yttrium-aluminum-garnet (laser)

NCST

Nuclear Criticality Safety Training

NDA

– national defense area
– nondestructive assay

NCSO

Nuclear Criticality Safety Organization [replaces Nuclear Criticality Safety Department (NCSD)]

NDC

nondestructive cleaning

NDD

normal dodecane

NDE

– nondestructive evaluation
– nondestructive examination

NDGS

Nelson Dewey Generating Station (Wisconsin)

NDI

nondestructive inspection

NDP

– neutron depth profile/profiling
– Nuclear Data Project
– numeric data package

ND

North Dakota (use only with ZIP code addresses)

NCRPM

National Council on Radiation Protection and Measurements

NCPDI

National Coastal Pollutant Discharge Inventory

NCPDS

Navy Civilian Personnel Data System

NH4NO3

ammonium nitrate

NES

– National Energy Strategy
– National Eutrophication Survey

NCR

– Near-Commercial Reactor
– nonconformance report

NCTTA

National Competitiveness Technology Transfer Act of 1989 (Pub. L. 100-189)

NCRP

– National Commission on Radiological Protection
– National Committee on Radiation Protection
– National Council on Radiation Protection

NCTR

National Center for Toxicological Research

NCS

– National Communications System
– net control station
– nuclear criticality safety

NCSA

– National Center for Superconducting Applications
– nuclear criticality safety analysis

NCSASR

National Center for Small-Angle Scattering Research

NCSC

U.S. Naval Coastal System Center [now Naval Surface Warfare Center, Dahlgren Division, Coastal Systems Station (DD/NSWC)]

NCSD

Nuclear Criticality Safety Department [replaced by Nuclear Criticality Safety Organization (NCSO)]

NCSL

National Conference of Standards Laboratories

NCRC

National Cave Rescue Commission

NEPA

– National Environmental Policy Association
– National Environmental Policy Act of 1969 [40 CFR Pts. 1500-1508; DOE Order 5400.1C (revision 199C)]
– National Environmental Protection Agency
– Nuclear Energy for the Propulsion of Aircraft

NEIDA

National Estuarine Inventory Data Atlas

NEIS

National Energy Information System

NEITDO

New Energy and Industrial Technology Development Organization (Japan)

NELAC

National Environmental Laboratory Accreditation Conference

NEPP-V

National Energy Policy Plan V

NEMA

– National Electrical Manufacturers Association
– National Environmental Management Academy (ERWM)

NEIC

National Enforcement Investigations Center

NEP

– National Energy Plan
– nuclear electric propulsion
– Nuclear Energy Program (DOE)

NELAP

National Environmental Laboratory Accreditation Program

NEPP

National Energy Policy Plan

NCSP

network communications software package

NERC

– NEPA environmental review and compliance
– North American Electricity Reliability Council

NERFR

nonionizing electromagnetic radio-frequency radiation

NERP

National Environmental Research Park

NERVA

Nuclear Engine for Rocket Vehicle Application

NEO

New Employee Orientation

NEDA

National Environmental Development Association

NEMT

National Emergency Management Team

NE

– nuclear energy
– Office of Nuclear Energy (DOE)

NEA

– National Endowment for the Arts
– Nuclear Energy Act of 1977
– Nuclear Energy Agency (OECD)

NEAT

National Energy Audit

Nebr.

Nebraska (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Omaha)

NEHC

Naval Environmental Health Center

NECTL

National Education Commission on Time and Learning (U.S. Congress)

NEC

National Electrical Code

NEDA CAAP

National Environmental Development Association Clean Air Act Project

NEDO

New Energy Development Organization

NEESA

U.S. Naval Energy and Environmental Support Activity

Ne

neon (element, Z = 10)

NEHA

National Environmental Health Association

NECPA

National Energy Conservation Policy Act of 1978

ORNL

Oak Ridge National Laboratory (preferred over "X-10")

ORNL/TM

Oak Ridge National Laboratory/Technical Memorandum

ORO

Oak Ridge Office (DOE) (formerly Oak Ridge Operations Office)

ORO-PAD

Oak Ridge Operations Office, Paducah (DOE), historical term

ORO-PORT

Oak Ridge Operations Office, Portsmouth (DOE), historical term

ORHSP

Oak Ridge Hydrology Support Program

ORPD

Oak Ridge Police Department

ORP

– Occurrence Reporting Program (ORNL)
– Office of Radiation Protection (ORNL)
– On-Site Remediation Program
– Operational Readiness Process

ORMWI

Oak Ridge Mixed Waste Incinerator (K-25 Site)

ORMMP

Oak Ridge Materials Management Plan

ORMAK

Oak Ridge Tokamak

ORISE

Oak Ridge Institute for Science and Education

ORION

Oak Ridge Isochronous Observation Network

ORINS

Oak Ridge Institute for Nuclear Studies (now ORAU)

ORIAD

Oak Ridge Immediate Action Directive

ORIC

Oak Ridge Isochronous Cyclotron

ORPM

Occurrence Reporting Program Manager

ORIM

Oak Ridge Industrial Model (for chemicals and petroleum)

ORIGEN

Oak Ridge Isotope Generation and Depletion Code

ORM

– occurrence reporting manager (ORNL)
– other regulated material

ORRSS

Oak Ridge Reservation Swap Shop

ORSOAR

Oak Ridge Synchrotron Organization for Advanced Research

ORSERS

Oak Ridge Science and Engineering Research Semester

ORSENS

Oak Ridge Systems for Enhancing Nuclear SafeguardsTM

OR

– Oak Ridge (Tennessee)
– odds ratio
– operating reactor
– Oregon (use only with ZIP code addresses)

ORHS

Oak Ridge Health Studies Agreement

ORSEC

Oak Ridge Science Education Center

ORSAM

ORNL spatial analysis model

ORSA

Operations Research Society of America

ORRWTB

Oak Ridge Research Web Test Bed

ORS

Occurrence Reporting System

ORPS

Occurrence Reporting and Processing System

ORRSF

Oak Ridge Reservation Site Facility

ORRMIS

Oak Ridge Regional Molding Information System

ORRI

Oak Ridge Research Institute

ORRHAGS

Oak Ridge Reservation Hydrology and Geology Study

ORREMSSAB

Oak Ridge Reservation Environmental Management Site-Specific Advisory Board (ORREMSSAB Web Site)

ORREC

Oak Ridge Regional Education Center (ORNL)

ORRDAC

Oak Ridge Research Reactor data acquisition system

ORR

– Oak Ridge Research Reactor
– Oak Ridge Reservation
– Operational Readiness Review

ORSORT

Oak Ridge School of Reactor Technology

OPSM/UG

Optical Sensing Manufacturers/Utilities Group

ORCHID

Oak Ridge Center for Healthcare Industry Development

ORCC

Oak Ridge City Council

ORC

Office of Regional Counsel

ORBRFUR

Oak Ridge Bioprocessing Research Facility User Resource

ORAU

Oak Ridge Associated Universities

ORACLE

Oak Ridge Automatic Computer and Logic Engine

OR gate

["OR" is not an abbreviation (see AND gate)]

ORA

– Oak Ridge Area
– Office of Risk Analysis (DOE)

OPTS

– Office of Pesticides and Toxic Substances (EPA)
– Order Processing and Tracking System

ORCMTD/UF

Oak Ridge Centers for Manufacturing Technology Deployment/User Facility

OPSEC/CI

Operations Security/Counterintelligence

OPSEC

Operations Security (Program)

OPS

– Office of Pipeline Safety
– operating system (computer term)

OPRR

Office of Protection from Research Risks

ORT

Operational Readiness Team

OWR

Omega West Reactor

OPPPE

Office of Policy, Planning and Program Evaluation (DOE)

OPRM

– Office of Plans and Resources Management
– oscillation power range monitor

OQPI

Office of Quality Programs and Inspection (formerly QD)

ORELA

Oak Ridge Electron Linear Accelerator

ORGSBS

Oak Ridge Graduate School of Biomedical Sciences

ORGDP

Oak Ridge Gaseous Diffusion Plant (now East Tennessee Technology Park)

ORG

Operations Review Group

ORFTF

Oak Ridge Filter Test Facility

ORFEA

Oak Ridge Federal Employees Association

ORF-ICN

Oak Ridge Federal-Integrated Communications Network

OREQAB

Oak Ridge Environmental Quality Advisory Board

OREPA

Oak Ridge Environmental Peace Alliance

ORCHIS

Oak Ridge Computerized Hierarchical Information System

OREN

Oak Ridge Educational Network

ORCMT

Oak Ridge Centers for Manufacturing Technology

OREIS

Oak Ridge Environmental Information System

Oreg.

Oregon (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

OREA

Office of Economic Adjustment

ORDTN

Oak Ridge Dataphone Teletypewriter Network

ORDC

Oak Ridge Detector Center (ORNL, established January 1990)

ORD

Office of Research and Development (EPA)

ORCWDF

Oak Ridge Central Waste Disposal Facility (proposed)

ORHASP

Oak Ridge Health Agreement Steering Panel

OREOC

Oak Ridge Emergency Operations Center

OTSP

Office of Transportation Systems Planning

OVT

operational verification testing

OVEC

Ohio Valley Electric Corporation

OVA

organic vapor analyzer

OUST

Office of Underground Storage Tanks

OURE

Office of Uranium Resources and Enrichment (DOE)

OUO

Official Use Only

OU

operable unit

OWP

Office of Weapons Production

OTT

– Office of Technology Transfer
– Office of the Treasurer

OWI

Office of Waste Isolation

OTSG

once-through steam generator

OTS

– Office of Toxic Substances (EPA)
– Office of Transportation Systems (DOE)

OTO

one-third octive

OTM

– Oil Tank Model
– Oil Trade Model

OTF

optical transfer function

OTEC

ocean thermal energy conversion

OTDR

optical time-domain reflectometry

OTD

Office of Technology Development (DOE)

OTV

Orbital Transfer Vehicle

oz t

ounce, troy (12 oz t = 1 lb) [convert to SI: kilogram (kg) for solids; cubic meter (m3) for liquid, which is preferred over liter; see restrictions listed under "L" for "liter"]

OECM

Office of Enforcement and Compliance Monitoring

OPPE

– Office of Policy, Planning, and Evaluation (EPA)
– Office of Program Planning and Evaluation

OMD

Operations Management (Division of YSO)

OTP

operational test plan

OPC

other project costs

ORMC

Oak Ridge Metrology Center

Ω · m

ohm meter

Ω-ft

ohm foot [convert to SI: ohm centimeter (Ω · cm)]

OWCP

Office of Workers Compensation Program

Ω

ohm

OWFD

Office of Work Force Diversity (formerly EEO organization)

oz ap

ounce, apothecary (12 oz ap = 1 lb) [convert to SI: kilogram (kg) for solids; cubic meter (m3) for liquid, which is preferred over liter; see restrictions listed under "L" for "liter"]

oz

ounce, avoirdupois (16 oz = 1 lb) [convert to SI: kilogram (kg) for solids; cubic meter (m3) for liquid, which is preferred over liter; see restrictions listed under "L" for "liter"]

Oy

oralloy

OWS

oil/water separator

OWRT

Office of Water Research and Technology (DOI)

OWRDP

Office of Waste Research and Development Programs (ORNL)

OWPE

Office of Waste Programs Enforcement

OTA

– Office of Technology Alliances
– Office of Technology Applications (DOE)
– Office of Technology Assessment (U.S. Congress)

Ω · cm

ohm centimeter

OSB

Operational Safety Board (sometimes Operations Safety Board)

OTC

Office of the Controller

OSFRI

Open Software Foundation Research Institute

OSF

Open Software Foundation (consortium)

OSEPER

Office of Science Education Programs and External Relations

OSEER

Office of Science Education and External Relations (ORNL)

OSE

– Office of Safeguards Evaluations
– Office of Security Evaluation

OSD

– Office of Standards Development (NRC)
– Office of the Secretary of Defense

OSCP

on-scene command post

OSH/WPP

Occupational Safety and Health Worker Protection Pilot (program of DOE)

OSAE

on-site architect-engineer

OSHA

– Occupational Safety and Health Act of 1970
– Occupational Safety and Health Administration

OSA

Optical Society of America

OS&H

operations safety and health

Os

osmium (element, Z = 76)

ORWMA

Oak Ridge Waste Management Association

ORVIP

Oak Ridge Valley Industrial Park

ORV

off-road vehicle

ORTRAN

Oak Ridge Transportation Technology Center

ORTI

Oak Ridge Transportation Initiative

OSC

– Office of Scientific Computing (DOE)
– on-scene coordinator
– open-space conservation
– operational support center
– operations support center

OSR

– Operational Safety Report
– operational safety requirement

ORTA

Office of Research and Technology Applications

OSWRA

Office of Solid Waste and Remedial Actions

OSWP

Operations Safety Work Permit

OSWER

Office of Solid Waste and Emergency Response (EPA)

OSW

– Office of Saline Water
– Office of Solid Waste (EPA)

OSTS

Office of Storage and Transportation Systems

OSTP

Office of Science and Technology Policy

OSTI

Office of Scientific and Technical Information (DOE) (formerly TIC)

OSH

occupational safety and health

OSS

– Office of Safeguards and Security
– Office of Statistical Standards (DOE)
– off-the-shelf software
– Order Status Screen

OT&E

Operations Training and Evaluations

OSPIC

Oil Spill Public Information Center

OSM

Office of Surface Mining (DOI)

OSLAP

Office of State and Local Assistance Programs (DOE)

OSL

Operation Source Language

OSIM

Open Systems Implementation and Migration (C&TS)

OSI

– Office of Special Investigations
– open system interconnect

OSHRKS

Occupational Safety and Health Record Keeping System

OSHP

Office of Safety and Health Protection

OSTC

Office of Scientific and Technical Computing

OCUS

– Office Computing User Services
– Office Computing User Support

OEBBS

Operating Experience Bulletin Board System [OESH, Office of Nuclear Safety (DOE)]

OEA

–Office of Economic Adjustment
– Office of Environmental Analysis (DOE)

ODW

Office of Drinking Water (EPA)

ODSR

optical disk storage and retrieval

ODRS

Optics Damage and Radiation Studies

ODP

ozone-depleting potential

ODNR

Ohio Department of Natural Resources

OESHOC

Operations, Environment, Safety, and Health Operating Committee

OD

– oil dike
– Operations Division (K-25)
– outside diameter

OECD/NEADB

Organization for Economic Cooperation and Development/Nuclear Energy Agency Data Bank

OCT

– Office Computing Technologies
– ornithine carbamoyl transferase (or ornithine transcarbamylase)

OCSSEM

Office of Central Safeguards, Security, and Emergency Management

OCS

Office of Scientific Computing (DOE)

OCRWM

Office of Civilian Radioactive Waste Management (DOE) (also DOE/RW; also RW)

OCR

– Operating Cost Report
– optical character reader
– Optical Character Recognition (device)

OCPSF

organic chemicals, plastics, and synthetic fibers

OCONUS

outside continental United States (see CONUS)

OCMT

Operating Contractors Management Team

ODC

– ornithine decarboxylase
– other direct cost

OEM

– Office of Energy Management
– original equipment manufacturer

OESHC

Office of Environmental, Safety, and Health Compliance

OESH

Office of Environment, Safety and Health (DOE)

OESD

Office of Energy Systems and Distribution (DOE)

OERWM

Office of Environmental Restoration and Waste Management (DOE)

OERTT

Office of Energy Research Technology Transfer (DOE)

OERR

Office of Emergency and Remedial Response

OERI

Office of Educational Research and Improvement

OER

– oersted [convert to SI: amperes per meter (A/m)]
– Office of Energy Research

OEC

– O-arai Engineering Center (Tokai Works of PNC, Japan)
– Office of Environmental Compliance

OEP

– Office of Electric Power
– Office of Emergency Programs (DOE)

OECD

– Office of Environmental Compliance and Documentation
– Organization for Economic Cooperation and Development (formerly OEEC)

OEID

Office of Economic Impact and Diversity (DOE)

OEGC

Office of Environmental Guidance and Compliance (DOE)

OEG

Office of Environmental Guidance (DOE)

OEETD

Office of Environmental Engineering and Technology Demonstration

OEERE

Office of Energy Efficiency and Renewable Energy (DOE)

OEE

Office of Energy Emergencies (DOE)

O

oxygen (element, Z = 8)

OCI

– Office of Counterintelligence (DOE)
– organizational conflict of interest

OEPA

– Office of Environmental Policy Analysis
– Ohio Environmental Protection Agency

O2

oxygen

OCL

– obligational control level
– Optics Characterization Laboratory

OAII

Ocean-Atmosphere-Ice Interactions (ARCSS)

OAI

Office of Audit and Inspection

OAG

Official Airline Guide (Travel Department)

OAF

Office of Alcohol Fuels (DOE)

OAC

– Ohio Administrative Code
– operational aids computer

OA&P

Operations Analysis & Planning Division

OA/DCS

Open Architecture Distributed Control System

OAP

off-axis paraboloidal

O3

ozone

OAPEC

Organization of Arab Petroleum Exporting Countries

OPPA

Office of Policy, Planning, and Analysis

OEEC

Organization for European Economic Cooperation (now OECD)

O-D

origin-destination

O/M

operation/maintenance

O/O

owner/operator

O&G

oil and grease

O&M

– operating and management
– operation and maintenance

O&TS

Operations and Technical Support

OA

– office automation
– Office of Independent Oversight and Performance Assurance
– oxygen activation

OBE

operating-basis earthquake

OASD

Office of Assistant Secretary of Defense

OCHP

open-cycle heat pump

OCEP

Office of Contractor Employee Protection (DOE)

OCD

Office of Civil Defense

OCCF

Optical Component Characterization Facility

OCAW

Oil, Chemical, and Atomic Workers International Union

OCA

Organization of Chinese Americans

OC

– on center
– operating center
– operating contractor

OAM

oversight assurance memorandum

OBES

Office of Basic Energy Sciences

OCIS

OSHA Computerized Information System

OBCS

Office of Buildings and Community Systems (DOE)

OBA

operating-basis accident

OB/OD

open burning/open detonation

OASIS

Online Access Services and Information System (replaced LION)

OAS

– Office Automation System
– Organization of American States

OARM

Office of Administration and Resource Management

OAR

Office of Air and Radiation (EPA)

OAQPS

Office of Air Quality Planning and Standards (EPA)

OBT

Office of Building Technologies

OMS

organizational maintenance squadron

OLS

operating license stage

ONR

Office of Naval Research

ONPA

Office of NEPA Project Assistance (DOE)

ONOR

off-normal occurrence report

ONMSS

Office of Nuclear Material Safety and Safeguards (NRC)

ONEP

ORNL National Energy Perspective

ONC

Open Network Computing

OMV

Orbital Maneuvering Vehicle

ONS

– Oconee Nuclear Station
– Office of Nuclear Safety (DOE)

OMSE

Office of Management Systems and Evaluation (EPA)

ONWI

Office of Nuclear Waste Isolation (DOE)

OMRE

Organic Moderated Reactor Experiment

OMCD

Office of Mobilization and Civil Defense

OMB

– Office of Management and Budget (formerly BOB)
– Office of Military Budget

OMA

Office of Military Applications

OM/SO

Operations Manager/System Owner

OM-Al

organic monomeric aluminum

OLU

output logic unit

OLSA

organic liquid storage area

OMSQA

Office of Monitoring Systems and Quality Assurance (EPA)

op-amp

operational amplifier

OPERAD

Optical Processing Enhanced Real-Time Advanced Detection

OPEX

operations expense

OPFM

Office of Project and Facilities Management

OPLAN

Oil and Hazardous Substance Pollution Contingency

OPM

– Office of Personnel Management
– Office of Planning and Management

OPP

Office of Pesticide Programs

OARS

OSTI Automated Retrieval System

OETA

Office of Environmental Technology Assessment

ONRR

Office of Nuclear Reactor Regulation (NRC)

OPEC

Organization of Petroleum Exporting Countries

OOP

object-oriented programming

OPAC

On-Line Payment and Collection

OP

– Office of Operational Safety
– Operations Planning (DOE)

OOS

Office of Operational Safety

OORTS

Official Oak Ridge Telephone System

OORS

Office of Operational Readiness and Safety (now OORFS)

OOR

overall objectives and requirements

OOIP

original oil in place

OOC

Office of Classification

OPEIU

Office and Professional Employees International Union

OFC

Office of Fuels Conversion (ERA-DOE)

OHIS

Occupational Health Information System

Ohio

(do not abbreviate unless used with ZIP code addresses; state name is not needed with Cincinnati or Cleveland)

OHF

Old Hydrofracture Facility (pond)

OHER

Office of Health and Environmental Research (DOE)

OHEA

Office of Health and Environmental Assessment

OHA

U.S. Department of Energy Office of Hearings and Appeals

OGUI

Office of Guest and User Interactions (ORNL)

OETD

Office of Environmental Technology Development

OHMS

hydroxy melatonin sulfate

OFA

– Office of Financial Analysis (U.S. Department of the Treasury)
– other federal agencies

OH

– Ohio (use only with ZIP code addresses)
– ohmic heating

OFCCP

Office of Federal Contract Compliance Programs

OFE

Office of Fusion Energy (DOE)

OLP

Office of Laboratory Protection (formerly LPD) (ORNL)

OORFS

Office of Operational Readiness and Facility Safety (formerly OORS)

OGSCL

Office of Oil, Gas, Shale, and Coal Liquids (DOE/FE)

OGC

Office of General Counsel

OFT

operational flight trainer

OFHC

oxygen-free, high-conductivity

OEWS

Operating Experience Weekly Summary [Office of Nuclear Safety (DOE)]

OIT

oxidation induction time

OLE

object linking and embedding

OLC

Office of Laboratory Computing (ORNL)

OL

operating license

Okla.

Oklahoma (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Oklahoma City)

OK

Oklahoma (use only with ZIP code addresses)

OJT

on-the-job training

OJCS

Organization of the Joint Chiefs of Staff

OIU

operator interface unit

OGSST

Office of Oil, Gas, Shale, and Special Technologies

OITS

Open Item Tracking System

OHMT

Office of Hazardous Materials Transportation

OIRPC

Office for Interagency Research and Policy Coordination

OIRM

Office of Information Resources Management Policy, Plans, and Oversight (DOE)

OHP

omnidirectional holonomic platform

OHS

Occupational Health Services

OIG

Office of Inspector General

OIC

– officer-in-charge
– optical integrated circuit

OIP

Organizational Improvement Program

OIDC

oil-importing developing countries

PSLC

Proprietary Software License Compliance (ESS-CU-120)

PSM

– Packaging Systems Management
– process safety management

PSMS

plant safety monitoring system

PSN

proper shipping name (for hazardous material transport)

psid

pounds per square inch, differential [convert to SI: kilograms per square meter (kg/m2)]

PSL

Problem Statement Language

PSO

– Pacific Site Office (DOE)
– principal secretarial officer
– Program Secretarial Office
– program senior official
– Protective Services Organization

PSIM

power systems information management

psig

pounds per square inch, gage [convert to SI: kilograms per square meter (kg/m2)]

PSID

preliminary safety information document

PSAT

partial site acceptance test

psi

pounds per square inch [convert to SI: pascal (Pa)]

PSC

– process support cell
– Public Service Commission (State of Tennessee)
– public service company

PSEI

playback system electronic interface

PSI

– Process Safety Institute
– Professional Secretaries International
– Pulse Sciences, Inc.

PSD

– Physical Security Department
– plasma spray deposition
– power spectral density
– prevention of significant deterioration
– Process Support Division
– Protective Services Department (OLP)

PSDREC

Power Spectral Density Recognition (system)

PSAR

preliminary safety analysis report

Pt(s).

Part(s) [use when followed by number(s); spell out at beginning of sentence]

PSP

– Performance Sharing Plan
– protective shipping package

PSF

– performance shaping factor
– point spread function
– prime solar fraction
– print services facility
– production support facility

psf

pounds per square foot [convert to SI: kilograms per square meter (kg/m2)]

PSET

Plant Safety Evaluation Team

PSES

pretreatment standard for existing sources

psia

pounds per square inch, absolute [convert to SI: pascal (Pa)]

PTH

parathyroid hormone

PUB

process utility building

Pu

plutonium (element, Z = 94)

PPS

– plant protection system
– polyphenylene sulfide

Pub. L.

Public Law (preferred over "PL")

PSAP

Personnel Security Assurance Program (DOE)

PTUC

PTU controller card

PTU

pole-top unit

PTS

– pressurized thermal shock

– progress tracking system
– project tracking system

PTR

Property Transfer Record (Form UCN-541)

PTP

– P-terphenyl
– Plant Test Program

PTO

permit to operate

PTI

– permits-to-install
– Post-Tensionary Institute
– Power Technologies, Inc.

PTFE

polytetrafluoroethylene

Pt

platinum (element, Z = 78)

PSTM

photon scanning tunneling microscope

PSQ

Personnel Security Questionnaire

PSR

preliminary safety report

PSRA

probabilistic seismic risk assessment

PSRC

Power Systems Relaying Committee

PSS

– Plant Shift Superintendent
– problem safety summary (ORNL)
– project schedule sheet

PTF

phase transfer function

PSTCC

Pellissippi State Technical Community College

PTE

part-time employee

PSTP

Power Systems Technology Program

PSW

– phosphate/scrapped waste
– phosphate/sulfate waste

PSZ

partially stabilized zirconia

PT

– part-time
– performance testing
– potential transformer

PTA

plant test authorization

PSPC

position-sensitive proportional counter

PST

– pair-selected ternary
– Plant Safety Evaluation Team

PPM

Policy Procedures Manual

PPSG

power purchase strategy guideline

PR

– preliminary review
– press release
– pressure rated
– procurement request
– Puerto Rico (use only with ZIP code addresses)

Pr

praseodymium (element, Z = 59)

ppt

– parts per thousand
– pellet propulsion technology
– precipitate

PPSO

Personal Property Shipping Office (DOD)

PPSC

Personal Publishing Support Complex

pps

pulses per second

PPRS

Performance Planning and Review System

PPRP

Pollution Prevention Research Program

ppr

pulses per revolution

PPPL

Princeton Plasma Physics Laboratory

PPPD

pilot production program definition

PPP

– paper-polypropylene-paper
– Point-to-Point Protocol
– Pollution Prevention Program

PRAISDPO

PRAISE Discrete Probability Distribution

PPE

personal protective equipment

PPBS

Planning, Programming, Budgeting System

PLD

pulsed-layer deposition

PUC

Public Utility Commission

PPC

– Personal Performance Consultants
– plant procurement coordination
– Pollution Prevention Council

PPCP

Preparedness Prevention and Contingency Plan

PPOA

Pollution Prevention Opportunity Assessment [formerly Pollution Waste Assessment (PWA)]

PPDD

preliminary project design description

PPO

– Plant Publications Office (Publishing Services)
– Portsmouth Project Office (DOE)
– Preferred Provider Organization

PPFD

photosynthetic photon flux density

PPI

– Plastics Pipe Institute
– point polarization interferometer
– process prove-in
– producer price index

PPIFUA

Power Plant and Industrial Fuel Use Act of 1977

PPISIG

Professional Publishing and Illustration Special Interest Group

ppm

parts per million

PRAM

Predictive Reliability Assessment Model

PPD

Production Program Definition Document

PRISM

– Power Reactor Inherently Safe Module
– Princeton Scorekeeping Method

PSA

– performance self-assessment
– Problem Statement Analyzer
– Puget Sound Area

PS

– performance specification
– Philadelphia Support Office (DOE)
– photosynthesis
– Protective Services (organization)

PRWTF

Plating Rinse Water Treatment Facility

PRTF

Plating Rinsewater Treatment Facility

PRSS

primary reactor shutdown system

PRSA

Public Relations Society of America

PRS

– perforation registration system
– Production Requirements System

PRR

Protective Response Recommendation

PRP

– potentially responsible party
– Productivity Retention Program

Prop

property (preferred over "P") (math)

PROM

programmable read-only memory

Prob

probability (math)

PRNC

Puerto Rico Nuclear Center

PRA

probabilistic risk assessment

PREPP

Process Experimental Pilot Plant

PRBS

psuedorandom binary sequence

PRC

– People's Republic of China (mainland China)
– Project Review Committee

PRCPTS

primary reactor coolant pump trip system

PRD

– Public Relations Department
– proposed reference design

PRDA

Program Research and Development Announcement

PRMP

– Plutonium Recovery Modernization Project
– Postremoval Monitoring Plan

PRDS

Production Reports Distribution System

PRM

– personal radiation monitor
– protection relay module

PRF

Plutonium Recovery Facility

PRFD

Personal Radio-Frequency Dosimeter

PRG

preliminary remediation goal

PRIMEX

primary extraction system (see SECEX)

PRIP

Productivity and Radiological Improvement Program

PSAM

Physical Sciences and Advanced Materials (Organization)

PRDI

Personal Radiation Detection Instrument

PPBRS

Program Planning, Budgeting, and Review System

PIP

– part in position
– Performance Improvement Process/Program/Project
– Program Implementation Plan
– Public Involvement Plan

PM-AMMOLOG

Program Manager, Office of Ammunition Logistics

PM

– particulate matter
– particulate mercury
– phase margin
– phase modulation
– photomultiplier
– predictive maintenance
– preventive maintenance
– program manager
– programmed maintenance
– project management
– project manager

Pm

promethium (element, Z = 61)

PLV

– pay in lieu of vacation
– production-level video

PLT

Princeton Large Torus

PLSC

prime lump-sum contractor

PLRTS

process and long-range technical support

PLL

phase lock loop

PLFA

phospholipid fatty acid

PLF

preload function

PLEX

plant life extension

PM/SO2

particulate matter and sulfur dioxide

PLCEDM

part-length control element drive mechanism

PM/WSL

priority materials/waste stream list

PLBR

prototype large breeder reactor

PLA

pulsed-laser-annealed (cell type)

PL

Public Law ("Pub. L." is preferred)

PJ

picojoule

PIV

postindicating valve

PIUS

process-inherent ultimate safety

PITS

– plant inventory trending system
– primary inventory trending system

PITF

Pipe Impact Test Facility (ORNL)

PITA

performance indicator and trend analysis system

PIRO

Petroleum Industry Response Organization

PIRLA

Paleoecological Reconstruction of Recent Lake Acidification (EPRI)

PIRG

public interest research group

PLC

– power line carrier
– programmable logic controller

PPPP

Pollution Prevention Program Plan

PMIC

– Performance Management Improvement Council
– Personnel Management Improvement Committee

PISA

potential inadequacy of safety analysis

PNC

Power Reactor and Nuclear Fuel Development Corporation (Japan)

PNAD

personal nuclear accident dosimetry

PNA

polynuclear aromatic hydrocarbons

pn junction

interface between p-type (positive) and n-type (negative) electrical carriers

PMU

Production and Maintenance Union

PMTC

Precision Manufacturing Technology Center

PMT

– Performance Measurement Team (a TQM term)
– photomechanical transfer (produces screened halftones)
– photomultiplier tube
– Process Management Team (used in IMS)

PMSR

project management summary report

PMS

– plant monitoring system
– Project Management System

PMR

– Procedure Modification Request
– proportionate mortality ratio

PMP

– phase-measuring profilometry
– Pontryagin's Maximum Principle
– Program Management Plan
– project management plan

PM-ECM

permanent-magnet electronically commutated motor

PMN

premanufacture notice

PIO

– pilot-induced oscillation
– public information officer

PMI

– Precision Machining, Inc.
– Project Management Institute

PMF

probable maximum flood (flooding with dam break; see MPF)

PMEL

Precision Measurement Equipment Laboratory

PMED

Personnel and Management Evaluation Division

PMDF

– Pascal Mail Distribution Facility
– Production Methods Development Facility

PMD

– Petroleum Marketing Division (EIA)
– process method development
– production methods development
– Program Management Division

PMCD

program manager for chemical demilitarization

PMC

– Performance Management Council
– Personnel Management Committee
– precious metals coordinator
– Project Management Corporation

PMAR

Procurement Management Assistance Review

PMAA

Petroleum Marketers Association of America

PMA

Power Marketing Associations

PM10

particulate matter less than 10 micrometers (PM < 10 µm) in diameter

PMO

Project Management Office (U.S. Army)

PVRUF

Pressure Vessel Research Users' Facility (ORNL)

PIR

– Phenomena Identification and Ranking
– polyisocyanurate

PWMP

– Pond Waste Management Project
– project waste management plan

PWMI

pulse-width modulated inverter

PWM

– process waste monitoring
– pulse-width modulated

PWL

piecewise linear (model)

PWHT

postweld heat treatment

PWF

permanent wood foundation

PWBA

plane-wave Born approximation

PWB

Programmer Work Bench

PWA

– Pollution Waste Assessment [now Pollution Prevention Opportunity Assessment (PPOA)]
– process waste assessment
– Project Work Authorization

PW&CH

programmed work and computer history

PW

– present worth
– process waste

PWR

pressurized-water reactor

PVT

– pressure-volume-temperature
– pressure-volume-time

PWS

Plant-Window System

PVRC

Pressure Vessel Research Council

PVM

parallel virtual machine

PVEC

photovoltaic energy conversion

PVDF

polyvinylidene fluoride

PVC

polyvinylchloride

PVA

precipitate-void association

PV

photovoltaic

PURTA

Public Utilities Realty Tax Assessment of 1970

PURPA

Public Utility Regulatory Policies Act of 1978

PUREX

plutonium/uranium extraction

PUR

polyurethane

PUI

Power Utilization Index

PUEP

Portsmouth Uranium Enrichment Plant (see PORTS)

PVTB

– Producibility Validation Test Bed
– Productivity and Validation Test Bed

POA

Plan of Action

PIN

– P-intrinsic-N
– positive-intrinsic-negative

PIMA

Polyisocyanurate Insulation Manufacturers Association

PILOT

payment in lieu of taxes

PIH

poison by inhalation

PIG

– particulate, iodine, and gas
– Phillips ion gage

PIF

Proposal Information Form

PIE

postirradiation examination

PIDAS

Perimeter Intrusion Detection and Assessment System

PID

– photoionization detector
– Planning Information Document
– proportional-integral-derivative

PICS

– Partnership in Computational Science (consortium)
– process inventory control system

PIC

– polymer-impregnated concrete
– power integrated circuit
– probe interface chip
– product of incomplete combustion
– Project Information Center
– proportional-integral controller

PI&A

Program Integration and Administration

PWMS

Process Waste Monitoring System

PHWR

pressurized heavy-water reactor

PUCIP

Public Utility Conservation Investment Program

PCTT

pitch-catch through transmission

PDRD

Plant Directed Research, Development, and Demonstration

Φ

phase

PZT

piezoelectric crystal

PZR

pressurizer

PZPGA

peak zero period ground acceleration

PY

prior year

PX

Phoenix Area Office (DOE)

Px or PX

Pantex Plant (Amarillo, Texas)

PWWTF

Process Wastewater Treatment Facility

PWTP

Process Waste Treatment Plant

PWTFII

Production Waste Treatment Facility II

PWTF

Production Waste Treatment Facility

PI

– Pellissippi International
– performance indicator
– Pinellas Area Office (DOE)
– plasma-interactive
– polyisocyanurate
– preliminary inquiry
– principal investigator
– proportional-integral

Pb/acid

lead acid (battery)

PBX

– Princeton Beta Experiment
– private branch exchange

PBV

Post-Boost Vehicle

PBR

– pebble bed reactor
– permit-by-rule

PBGC

Pension Benefit Guarantee Corporation

PBFR

Power Burst Facility Reactor

PBFA

Particle Beam Fusion Accelerator

PBF

Power Burst Facility

PBCO

praseodymium

PBBS

Procurement Bulletin Board System

PBB

polybrominated biphenyl

ppb

parts per billion

PBAA

Preliminary Business Area Analysis

PB

polybutylene

Pb

lead (element, Z = 82)

PAWS

Phased Array Warning System

PAVE

Precision Acquisition Vehicle Entry

PATCO

Professional, Administrative, Technical, Clerical, and Other

PASS

postaccident sampling system

PASNY

Power Authority for the State of New York

PAS

pollution abatement system

PARSAC

programmable advanced RADIAC sound annunciator chip

PARR

projected annual reactor requirements

PARCC

precision, accuracy, representativeness, completeness, and comparability

PAR

– photosynthetically active radiation
– Protective Action Recommendation

PAPO

Performance Assurance Project Office

PPR

Performance Planning and Review [now Development, Planning, and Performance Review (DPPR)]

PCE

– perchlorethane
– perchloroethylene
– tetrachloroethene
– tetrachloroethylene

PCPA

Postclosure Permit Application

PCP

pentachlorophenol

PCOC

– potential contaminants of concern
– Practical Conference on Communication

pCO2

partial pressure of carbon dioxide

PCO

project control order

PCNIU

personal computer network interface unit

PCM

– personnel contamination monitor
– phase-change material
– phase contrast microscopy
– postclosure monitoring
– process control module

PCLA

pressure containment lower assembly

PCK

Poplar Creek kilometer

PCIS

Personal Computer Inventory System

PCI

– peripheral component interconnect
– postcollision interaction
– Prestressed Concrete Institute

pCi

picocurie [convert to SI: becquerel (Bq); sometimes "curie" is acceptable]

PCF

plasma centrifugal furnace

pc

polycrystalline

PBMP

polychlorinated biphenyl monitoring plan

PAMS

postaccident monitoring system

PC/PM

personal computer/project management

PC/TCP

Personal Computer/Transmission Control Protocol

PCA

– physical configuration audit
– pool critical assembly
– Portland Cement Association
– primary candidate alloy
– prime candidate alloy
– principal components analysis

PCAP

Production Capability Assurance Program

pcf

pounds per cubic foot [convert to SI: kilograms per cubic meter (kg/m3)]

PCBF

Printed Circuit Board Facility

PCEPD

President's Committee on Employment of People with Disabilities

PCC

Paducah Community College

PCCAP

plant computing and communications architecture plan

PCCB

– Procedure Change Control Board
– project configuration control board

PCD

– product conversion demonstration (AVLIS)
– program control document
– project control document
– proposed consent decreePCDAS

PCDF

polychlorinated dibenzofuran

PC

– personal computer
– pitch-catch
– Placement Center (now Career Center)
– Position Charter
– potential carcinogen
– printed circuit

PCB

– polychlorinated biphenyl
– printed circuit board

P&DS

Printing and Duplicating Services [now Micrographics and Printing Services (M&PS), a part of IMS]

PAO

– Princeton Area Office (DOE)
– Public Affairs Office
– public affairs officer

Pa.

Pennsylvania (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Philadelphia or Pittsburgh)

PA

– Pacific Area Support Office (DOE)
– Pennsylvania (use only with ZIP code addresses)
– performance assessment
– preliminary assessment
– Privacy Act
– process analysis
– production agency
– protected area
– public address (system)
– public affairs

Pa

– pascal
– protactinium (element, Z = 91)

P2

pollution prevention

P&TM

planning and technology management

P&T

packaging and transportation

P&SE

Program and Systems Engineering (Division) (formed in 1991)

P&S

production and surveillance

P&PD

production and planning directive (document)

P&P

planning and production document

P&LRTS

Process and Long-Range Technical Support (program)

P&ID

piping and instrumentation diagram

Pa·s·m

pascal second meter

P/A

propulsion/avionics

P

– phosphorus (element, Z = 15)
– poise [convert to SI: pascal second (Pa · s)]
– property ("Prop" is preferred) (math)

p. (pp.)

page(s) [use when followed by number(s); spell out at beginning of sentence]

P.L.

Public Law

p.m.

post meridiem (afternoon)

P.R.

Puerto Rico (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

P&I

– piping and instrumentation
– Planning and Integration (organization)
– process and instrumentation

p-type

positive electrical carrier

P&E

Plant and Equipment (Division)

P/B

peak to background

P/R

productivity/respiration

P/Y

pitch/yaw

P&A

– planning and analysis
– plugging and abandonment

P&CE

plant and capital equipment

Pa·s·m2

pascal second square meter

P-T

pressure-temperature

PAE

plans, analysis, and evaluation

PB&C

planning, budget, and control

PAME

primary amoebic meningoencephalitis

PAM&T

Production Association, Materials, and Interplant Tranfers

PAM

– Performance Analysis Matrix
– perimeter air monitor
– postaccident monitoring

PALS

– Partners at the Laboratory in Science (ORNL program)
– Payroll, Absence, and Labor System

PAL

– phenylalanine ammonia lyase
– programmable array logic

PAH

– polyaromatic hydrocarbon
– polycyclic aromatic hydrocarbon

PAGIS

Performance Assessment of Geological Isolation Systems

PAG

Protection Action Guide

PAFE

Plasma Arc Furnace Experiment

PAFC

phosphoric acid fuel cell

PAF

plasma arc furnace

PAES

Power Advisor for Energy Systems

Pa·s

pascal second

PACER

Program for the Acceleration of Commercial Energy Research

PA/SI

preliminary assessment/site investigation (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

PAA

– polyacrylic acid
– primary assigned aircraft

PAAA

Price-Anderson Amendments Act

PAB

performance assessment brine

PAC

– perturbed angular correlation
– probably approximately correct

PAECE

Protective Action Evaluator for Chemical Emergencies: A Users Manual (U.S. Army)

PACE

– Paper, Allied-Industrial, Chemical and Energy
– Plant Acquisition and Construction Equipment
– plant and capital equipment

PAECE

Protective Action Evaluator for Chemical Emergencies

PACSE

Permit Attachment for Confined Space Entry

PAD

– Paducah Gaseous Diffusion Plant (also PGDP)
– Paducah Site Office (DOE)
– Policy Analysis and Development (formerly IRPM)
– Program Approval Document

PADD

Petroleum Administration for Defense District

PADRE

Protective Action Dose Reduction Estimator

PADS

Performance Assessment and Development System (at ORNL)

PAN

passive-active neutron

PAC/CSR

Preadmission Certification/Continuing Stay Review

PFS

Parallel File System (Intel)

pF

picofarad

PF

– poloidal field
– power factor
– program function
– protective force
– polyurethane foam

PFA

perfluoroalkyoxy-alkanes

PFBC

pressurized fluidized-bed combustion

PFD

– personal flotation device
– Production Facilities Department

PFM

pulse frequency modulation

PFMS

Precision Flexible Manufacturing System

PEHX

cross-linked, high-density polyethylene (also HDPEX and XHDPE)

PFR

Phoenix Ford Reactor (University of Michigan)

PEU

process equipment uprating

PFTF

Purex Flowsheet Test Facility

PG&E

Pacific Gas and Electric Company

PGA

peak ground acceleration

PGAA

prompt-gamma activation analysis

PGDP

Paducah Gaseous Diffusion Plant (also PAD)

PGM

Precision Guided Munition

pH

pH (hydrogen-ion concentration notation)

PFPR

Plutonium Fuel Processing Facility (OEC of PNC, Japan)

PERC

perchloroethylene

PEIA

programmatic environmental impact analysis (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIS, and SEIS)

PEIS

programmatic environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, and SEIS)

PEL

– low-density polyethylene (also LDPE)
– permissible exposure limit

PELX

cross-linked, low-density polyethylene (also LDPEX and XLDPE)

PEM

– portable energy monitor
– process equipment modifications
– process empirical modeling
– proton exchange membrane (fuel cell)

PEMP

Process Equipment Modification Program

PENDOS

personnel neutron dosimeter/spectrometer

PEO

power equipment operator

PEX

cross-linked polyethylene (also XLPE)

PERALS

photon-electron rejecting alpha liquid scintillation

PEV

process evaluator

PERM

permanent circuit (computer term)

PERT

program evaluation review technique

PES

– Performance Enhancement System
– Plant Emergency Squad
– Power Engineering Society (IEEE)

PESC

passivated emitter solar cell

PESL

Physical and Electrical Standards Laboratory

PET

– polyethylene terephthalate
– positron-emission tomograph (scanner)
– process evaluation test
– Product Engineering Transmittal
– Proficiency Environmental Testing

PETC

Pittsburgh Energy Technology Center

PHA

Preliminary Hazard Analysis

PEP

– peak envelope power
– pellet-enhanced performance
– Performance Evaluation Plan
– powder-filled evacuated panel (superinsulation)
– Project Execution Plan

pp

peak to peak

Ph.D.

Doctor of Philosophy

PON

Program Opportunity Notice

PORC

Plant Operations Review Committee

PORT

Portsmouth Site Office (DOE)

PORTS

Portsmouth Gaseous Diffusion Plant (see PUEP)

PORV

power-operated relief valve

POTW

publicly owned treatment work

POHC

principal organic hazardous constituent

POX

purgeable organic halides

PCRV

prestressed concrete reactor vessel

PP

– pilot plant
– polypropylene
– Powerhouse Project (K-25)
– preliminary proposal
– preparatory procedure

PP&A

Program Planning and Analysis Office (ORNL)

PP&L

Pacific Power & Light

PPA

– Pollution Prevention Act of 1990
– Property Protection Area

PPAC

parallel-plate avalanche counter

PPAD

parallel-plate avalanche detector

PPAN

Pollution Prevention Awareness News

PPAP

Pollution Prevention Awareness Program

POV

privately owned vehicle

PNNL

Pacific Northwest National Laboratory (formerly PNL)

POG

project officer group

PHE

public health evaluation

PHENIX

photon electron new heavy ion experiment

PHILMS

Photographic Inventory Logistics Management System

PHP

Preferred Health Partnership

PHS

– preliminary hazard screening
– Public Health Service

PHSA

Public Health Service Act of 1965

PNGV

Partnership for a New Generation of Vehicles

POM

– polycyclic organic matter
– Program Objective Memorandum

PNLM

maximum perceived noise level

PH3

phosphine (gas)

pnp

positive-negative-positive (transistor)

PNP

purine nucleoside phosphorylase

PNR

Pittsburgh Naval Reactors Office (DOE)

Po

polonium (element, Z = 84)

PO

purchase order

POC

– particulate organic carbon
– performance objectives and criteria
– point of compliance
– point of contact
– purgeable organic carbon

POD

– Plan of the Day
– point of diversion (e.g., of stream)
– port of debarkation
– process operating diagram

POE

– port of embarkation
– point of exposure

PNL

Pacific Northwest Laboratory (Richland, Washington); now Pacific Northwest National Laboratory (PNNL)

PDWF

project director's working file

PDM

– programmed depot maintenance (USAF)
– Project Description Memorandum

PDN

Public Data Network

PDPM

pyrochemical and dry processing method

PDR

Plant Design Requirement

PDS

– partitioned data set
– plant display system
– Process Development Section (CTD)
– project data sheet

PDSI

Palmer Drought Severity Index

PDU

plasma display unit

PEH

high-density polyethylene (also HDPE)

PDW

probability density weighting

PDES

preliminary draft environmental statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PEIA, PEIS, and SEIS)

PE

– Planning and Evaluation [Division (of EPRI)]
– Philadelphia Electric Company
– polyethylene
– Portsmouth Enrichment Office (DOE)
– power electronic
– power equivalent
– principal engineer
– processing element
– Professional Engineer
– project engineer

PEA

Preliminary Energy Audit

PEAC

Power Electronics Application Center (TCRD)

PEB

Process Evaluation Board

PEC

– Performance Evaluation Committee
– Performance Evaluation Criteria
– Phoenix Electric Company
– Professional Engineer Certification
– Program Execution Committee

PED

– photoemission diode
– Project Engineering Design

PEG

– Performance Evaluation Group
– Project Evaluation Group

PDUCP

Plant Depleted Uranium Consolidation Project

PCV

– petty cash voucher
– pressure control valve

POL

petroleum, oil, and lubricants

PCS

– photoconductive power switch
– plant control system

PCSC

Personal Computer Support Complex

PCT

Personal Computing Technologies

PCTF

Plant Component Test Facility

PCTR

physical constants test reactor

PCU

platinum cobalt unit

PdM

predictive maintenance

PCUG

PC Users' Group

PDF

– plant design factor
– Portable Document Format
– Position Data Form

PCVN

precracked Charpy V-notch

PCW

process cooling water

Pd

palladium (element, Z = 46)

PD

– process design
– program director
– Physics Division
– Publications Division (now Publishing Services, a part of IMS)

PDA

Personal Digital Assistant

PDE

– partial differential equation
– Process Design Engineering

PDEIS

preliminary draft environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDES, PEIA, PEIS, and SEIS)

PDEA

preliminary draft environmental assessment (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEIS, PDES, PEIA, PEIS, and SEIS)

PCUA

pressure containment upper assembly

PDC

– Performance Documentation Checklist
– programmable digital controller
– proposed design change

QPP

Quality Program Plan

QF

qualifying facility

QG

qualified generator

QIR

– quality incident report
– quality investigation report

QIS

Quality Insurance System

QIT

Quality Improvement Team

QMDS

Quantitative Methods and Decision Support Group

QMF

quadrature mirror filter

QARR

Quality Assurance Review and Release

QMO

Quality Management Office (DOE)

QMS

quadrupole mass spectrometer

QADR

Quality Assurance Defect Report

QER

– Qualification Evaluation Release
– quality evaluation report
– quality event report

QPL

Qualified Products List

QN

quinoline

QVI

quality verification inspection

QUELTM

Query Language (trademark of Relational Technology, Inc.)

quad

[do not abbreviate this word (add "s" for plural)]

QTR

qualification test report

QTP

qualification test plan

QSPDS

Qualified Safety Parameter Display System

QSP

Questionnaire for Sensitive Positions

QSM

Quantum Structure of Matter

QBF™

QUERY-By-Forms

QQPRI

Quantitative and Qualitative Personnel Requirements Information

QS

qualification sample

QPBO

quality primary bridge operator

QAP

– Quality Assurance Plan
– Quality Assurance Procedure

QA&I

quality assurance and inspection

QAPjP

Quality Assurance Project Plan

QAAP

– quality assurance action plan
– quality assurance assessment plan

QAC

– quality assurance coordination
– quality assurance coordinator

QAIA

Quality Assurance Inspection Agency

QAIP

quality asurance inspection procedure

QA/QC

quality assurance/quality control

QAMS

Quality Assurance management staff

QAA

– Quality Assurance Agency
– quality assurance assessment

QAPI

Quality Assurance Procedures Index

QE&I

Quality Engineering and Inspection

QATG

Quality Assurance Task Group

QAPP

Quality Assurance Program Plan

QAS

– quality assurance specialist
– quality assurance survey

QAR

– Quality Assurance Regulation
– quality assurance representative
– quality assurance requirement

QALD

quality assurance liaison detachment

QCD

quantum chromodynamics

QE

quality evaluation (report)

QDRO

Qualified Domestic Relations Order

QDPS

qualified display processing system

QDEAS

Quality Deficiency Evaluating and Action System

QCPI

Quality Certification and Procurement Instruction

QC

quality control

Q&C

Quality and Compliance

QA

quality assurance

QD

Quality Department (now OQPI)

Q-PLUS

Quality Professional Local Utilization Services

RPPP

Radiochemical Processing Pilot Plant

RPPA

radiological protection program appraisal

RPP

Radiochemical Processing Plant

RPO

Reconfiguration Program Office

RPM

– Reconfiguration Program Management
– Risk-Based Prioritization Model

RPIS

Real Property Inventory System (data base) (DOE)

rpm

revolutions per minute

RPLC

reactor power level controller

RPL

Raffinate Program License

RPF

radial peaking factor

RPI

– Rensselaer Polytechnic Institute
– repeating pneumatic injector RPICS

RPC

remote procedure call

rps

revolutions per second

RPCS

reactor primary cooling system

RPD

Radiation Protection Department

RPFM

Real Property and Facilities Management (DOE)

RRB

Readiness Review Board

RRPT

Registered Radiation Protection Technologist [when used after a name, RRPT indicates that the individual has successfully completed the National Registry of Radiation Protection Technologists (NRRPT) exam]

RRPM

Regional Recruiting Potential Model

RRM

Robotics Research Manipulator

RRD

Research Reactors Division (ORNL)

RRC

– Reactor Review Committee
– Retiree Relations Center

– Robotics Research Corporation
– Roof Research Center (now BTC) (ORNL)

RMU

remote multiplexing unit

RPB

Reclamation Performance Bond

RRAC

Reactor Review and Audit Committee

RRAD

Red River Army Depot

RPS

reactor protection system

RRA

Revenue Reconciliation Act

RR

radiation release

RQ

reportable quantity

RPV

reactor pressure vessel

RPU

remote pickup

RPSS

– Radiation Protection Surveillance Section
– relative partial sum of squares

RPSD

Robotics and Process Systems Division (formerly FRD)

RPSC

Robotics and Process Systems Complex

RRAP

risk reduction action plan

RMSE

root mean square error ("rmse" is preferred)

RN

– race and national origin (U.S. Army)
– rejection notice

RO&DF

Remote Operations and Demonstration Facility

RO

– reverse osmosis
– Robotics and Process System

RNF

robust notch filter

RNA

ribonucleic acid

Rn

radon (element, Z = 86)

ROC

– Radioactive Operations Committee
– Reconstitution Operations Center

RMT

Radiological Monitoring Team

ROCAP

Regional Office for Central America and Panama (AID)

RMR

Records Management Repository

RRS

– Radiation Research Society
– Research Reactor Support

RVD

recreation visitor day

rms

root mean square (preferred over "RMS")

RMS

– reactor monitoring system
– recoil mass spectrometer
– root mean square ("rms" is preferred)

rms2

square of root mean square

rmse

root mean square error (preferred over "RMSE")

RMTT

Resource Management Team

RMP

– radiological monitoring plan
– risk management plan (EPA)

RP

– radiation protection
– release point
– responsible party

ROW

right-of-way (plural is "rights-of-way" or "right-of-ways")

ROS

Recreation Opportunity Spectrum

RORC

Reactor Operations Review Committee

ROR

– rate of return
– run of river

ROP

– record of purchase
– remote operating procedure

ROA

record of assembly

ROMD

Remote Operation and Maintenance Demonstration

RPA

random-phase approximation

ROM

– read-only memory
– rough order of magnitude

ROK

Republic of Korea

ROI

– region of influence
– region of interest
– Return on Investment

ROG

Regional Outreach Group

ROFT

Rapid Optics Fabrication Technology

ROD

– Reactor Operations Division
– Record of Decision
– record of disassembly

rod

[do not abbreviate this word; convert to SI: meter (m)]

RIR

remedial investigation report

RUSTIC

Regional and Urban Studies Information Center

RTRA

Roof Thermal Research Apparatus (ORNL)

RVP

Reid Vapor Pressure

RVLMS

reactor vessel level monitoring system

RVLIS

reactor vessel level indicating system

RVHLM

reactor vessel head level monitor

RVDT

rotary variable differential transformer

RW

Office of Civilian Radioactive Waste Management (DOE) (also DOE/RW; also OCRWM)

RV

– reactor vessel
– recreational vehicle
– Reentry Vehicle

RWCU

reactor water cleanup

RUMS

Random Utility Model of Consumers' Surplus

RU

regulated unit

Ru

ruthenium (element, Z = 44)

RTV

– real-time video
– room temperature vulcanizing

RTU

– remote terminal unit
– remote transponder unit

RTT

robotics technology testbed

RVAA

Request for Visit or Access Approval (DOE form)

RVCS

reflector vessel cooling system

RX

– receiver (radio)
– resolver-transmitter

RGD

Radiation Generating Device

RAILS

Records and Information Locator System

R/IPC

Records/Information Policy and Compliance

RUID

Requirement Unit Identification

RRL

Resumption Request Letter

°Re

degrees Reaumur

RVRLIS

reactor vessel refueling level indication system

RYM

Refinery Yield Model

RTR

– real-time radiography
– Regional Training Program

RWST

refueling water storage tank

RWS

– reactor water system
– Rural Water Survey

RWQCB

Regional Water Quality Control Board

RWP

– Radiation Work Permit
– Radiological Work Permit
– Residential Weatherization Program

RWOFA

Reimbursable Work for Other Federal Agencies

RWMD

Reservation Waste Management Division

RWMC

Radioactive Waste Management Complex (INEL)

°R

degrees Rankine

RSD

– relative standard deviation
– risk-specific dose (EPA)

RTS

– Radioactive Tracer Survey
– reactor trip subsystem
– reactor trip switchgear
– reactor trip system
– return to service
– Roane Technical Society

RSP

Revenue Sharing Program (USBC/DOC)

RSO

– response safety officer
– responsible supervisory official

RSMO

Regional Storage Management Office (DOD)

RSIC

Radiation Shielding Information Center

RSI

Radiation Sterilizers, Inc.

RSR

– rapid solidification rate
– Division of Reactor Safety Research (NRC)

RSDF

Remote Systems Development Facility

RSS

– Reactor Safety Study
– reactor scram system
– Reactor Systems Section (I&C Division, ORNL)
– remote shear system

RSCS

reactor secondary cooling system

RSCIS

reactor secondary coolant isolation system

RSCI

remote sensor and cable identifier

RSCC

Roane State Community College

RSC

– Regional Service Center
– Research Strategy Council

RSB

– Reactor Support and Operations Building
– reactor support building

RRT

– reactor research and technology
– Regional Response Team

RSG

Research Support Group

RTD

– residence time distribution
– resistance temperature detector
– resistance temperature device
– resistive thermal device

RTP

– Readiness To Proceed
– real-time pricing
– room-temperature phosphorescence

RTNDT

reference nil-ductility transistion temperature

RTIL

reactor trip initiation logic

RTI

Research Triangle Institute

RTG

– radioisotope thermal generator
– radioisotope thermionic generator
– radioisotope thermolelectric generator

RTF

– Reprocessing Test Facility
– rich text format
– Roof Testing Facility (ORNL)

RSPA

Research and Special Programs Administration (DOT)

RTDP

Robotics Technology Development Program (DOE-OTD)

RRSG

Research Reactor Support Group

RTCS

– real-time computer system
– reflector tank cooling system

RTBF

Readiness in Technical Base and Facilities

RTA

real-time analyzer

RT

– real time
– refrigeration tons

RSWO

Radioactive Solid Waste Operations

RSUC

Residual Stress User Center (HTML)

RSSG

Regional Systems Services Group

RTEX

real-time executive

RCPCMS

Reactor Coolant Pump Current Monitoring System

RDC

radon-daughter concentration

RDBMS

relational data base management system

RDA

radiation detection and alarm (system)

RD&D

– research, design, and development
– research, development, and demonstration

RD/RA

remedial design and remedial action

RD

–remedial design
– Restricted Data (classification)

RCW

recirculating cooling water

RCS

– reactivity control system
– reactor control system
– reactor coolant system
– remote characterization system
– Residential Conservation Service

RCRIS

Resource Conservation and Recovery Information System (EPA)

RCRH

Resource Conservation Research House (NAHB and NHE)

RCRA

Resource Conservation and Recovery Act of 1976 (40 CFR Pts. 240-271; DOE Orders 5400.1 and 5820.2A)

RCCS

reactor cavity cooling system

RCPMS

Reactor Coolant Pump Monitoring System

RDDTE

research, development, demonstration, testing, and evaluation (also RDDT&E)

RCPB

reactor coolant pressure boundary

RCP

– Radiation Control Program
– reactor coolant pump

RCO

radiation control officer

RCM

reliability-centered maintenance

RCITS

Reactor Coolant Inventory Tracking System

RCIS

reflector coolant isolation system

RCIC

reactor core isolation cooling

RCHX

reactor coolant heat exchanger

RCF

refractory ceramic fiber

rcf

relative centrifugal force

RCDT

reactor coolant drain tank

REDCOM

U.S. Readiness Command

RCPVTM

Reactor Coolant Pump Void Trend Monitor

REA

Rural Electrification Administration (USDA)

REDC

Radiochemical Engineering Development Center

RED

– responsible engineer/designer
– responsible engineering discipline

RECON

remote console

RECID

record identifier

RECAP

Residential Energy Conservation Action Program

RECA

Radiation Exposure Compensation Act of 1992

REAT

renewable energy applications and training

REARM

Rapidly Emplaced Artillery Resupply Module

REALM

– reactor emergency action level monitor
– reactor emergency alarm level monitor

Real-Op

real-time expert system language

REACT

Retirement Equity Act of 1984

REACH

Radiation Effects and Component Hardening

RDD

required delivery date

REAC

Radiation Emergency Assistance Center (ORAU)

RDDS

resin deuteration-dedeuteration system

RE

– rare earth
– reactive element/dispersoid

Re

– Real (math)
– rhenium (element, Z = 75)

RDWSP

Residential Drinking Water Sampling Program

RDT

reactor development technology

RDS

– remote data substation
– Remote Disassembly System

RDLP

research and development limited partership

RDL

reference documentation list

RDI

Retirement Disposal Instruction

RIS/P

radiation-induced segregation and precipitation

RMMA

Radioactive Materials Management Area

RDF

– radical distribution function
– Radiochemical Development Facility (ORNL)
– refuse-derived fuel

RCCPDS

Reserve Components Common Personnel Data System (ARNG)

REAC/TS

Radiation Emergency Assistance Center/Training Site (ORAU)

Ra

radium (element, Z = 88)

RADC

Rome Air Development Center (Griffiss Air Force Base, New York)

radar

radio detecting and ranging

RAD/SAB

radiological sabotage

Rad-NESHAP

National Emission Standards for Hazardous Air Pollutants for Radionuclides

rad-hard

radiation-hardened

RAD

radioactive

rad

– [not an abbreviation but a full word derived from radiation absorbed dose; plural is "rad" or "rads"; replaces roentgen; convert to SI: gray (Gy); sometimes "rad" is acceptable]
– radian [central angle of a circle determined by two radii and an arc joining them, all of the same length (math)]

RACT

reasonably available control technology

RAC

– Recombinant DNA Advisory Committee (NIH)
– response action contractor
– risk assement code
– Robotics and Automation Council

RAB

– Reliability Assessment Board
– riverine aquatic bed

RAAS

Remedial Action Assessment System

RCD

ruggedized contamination detection

RA

– readiness assessment
– Rehabilitation Act of 1973
– relative accuracy (test)
– remedial action
– remote access
– Restricted Area
– risk assessment

Radwaste

radioactive waste

r2

coefficient of determination

R&SSD

Radiation and Safety Surveys Department (ORNL)

R&PS

Robotics and Process Systems

R&EA

Resource and Environmental Analysis (Energy Division, ORNL)

R&DSPC

Research and Development Strategic Planning Committee

R&D

research and development

R/RH

robotics and remote handling

R/D

resolver-to-digital

R-O-R

reduction-oxidation-reduction (process)

R-12

refrigerant-12 (liquid dichlorodifluoromethane)

R.I.

Rhode Island (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)

R

– ratio
– roentgen [convert to Si: coulombs per kilogram (C/kg); sometimes "roentgen" is acceptable]
– thermal resistance (R-value)

RAA

responsibility, authority, and accountability

RASCAL

– Radiation and Standards Calibration Laboratory
– Radiological Assessment System for Consequence Analysis

RCCP

Residential and Commercial Conservation Program

RCB

Retrieval Containment Building

RCA

root cause analysis

RC

– Rankine cycle
– reactor coolant
– record copy
– resistance capacitance
– resistor-capacitor

RBSVS

reactor building special ventilation system

RBS

Rutherford backscattering spectroscopy

RBL

Radiobioassay Laboratory

RBE

relative biological effectiveness

RB

– radiant barrier
– reactor building

Rb

rubidium (element, Z = 37)

RAXIS

Radionuclide Accelerator X-Ray Information System

RAWC

remedial action waste cleanup

RADCON

Radiation Control (Manual)

RASH

Rapid Assessment for the Screening of Hazard

RADIAC

radiation detection, indication, and computation

RASA

– Radiological Survey Activities (group in HASRD)
– remedial action and survey activities

RAS

– radiation alarm system
– Records and Administrative Services
– Request for ADP Services
– Requisition Approval System
– routine analytical service
– Russian Academy of Sciences

RAPIC

Remedial Action Program Information Center

RAPD

– randomly amplified polymorphic DNA
– remedial action program description

RAP

– Radiological Assistance Program
– Remedial Action Program (DOE)
– Remote Advisory Panel (USAF)

RANN

Research Applied to National Needs (NFS program)

RAMC

Resource Allocation and Mine Costing

RAM

– radioactive material
– random access memory (computer term)
– reliability/availability/maintainability
– remote air monitor

RAG

Resource Analysis Group

RAF

– radiation amplification factor
– Risk Assessment Forum (EPA)

RAEC

Roane-Anderson Economic Council

RAO

– remedial action objective
– Research Applications Office (ORNL)

RATP

Robotics Applied Technology Program (DOE-OTD)

RHO

Rockwell Hanford Operations

RGR

relative growth rate

RGT

radcal gamma thermometer

RGTA

radcal gamma thermometer assembly

Rh

rhodium (element, Z = 45)

RH

– relative humidity
– remotely handled

RH-TRU

remotely handled transuranic (waste)

RHA

records holding area

RHCS

radiation-hardened control system

RETIMAC

real-time material control

RHIC

Relativistic Heavy Ion Collider

RFWS

refueling water system

rhp

right half-plane

RHPP

Reproductive Health Protection Program

RHR

residual heat removal

RHT

Radiation Hazard Tag (Form UCN-2785)

RI/FS

remedial investigation/feasibility study

RIB

– radioactive ion beam
– reflective insulating blinds

RIBI

Radioactive Ion Beam Injector

RIC

– radial inflow converter
– resistor-inductor-capacitor
– Routing Identifier Code

RHEED

reflection high-energy electron diffraction

RFD

– reference dose
– request for disposal
– reverse-flow diverter

RETO

reasonably expected to occur

RETTF

Regional Environmental Technology Transfer Forum

rev.

revision (use in citations)

RF

Rockwell hardness (test)

rf

radio frequency (preferred over "RF")

Rf

rutherfordium (element, Z = 104)

RF

– radio frequency ("rf" is preferred)
– refrigerator/freezer
– Rocky Flats
– Rocky Flats Area Office (DOE)

RFA

– rapid fuel analyzer
– RCRA facility assessment
– regulatory flexibility analysis
– Request for Approval

RGB

red-green-blue (signal)

RfD

reference dose (EPA)

RG

Regulatory Guide (NRC)

RFG

reformulated gasoline

RFG

Regulatory Facility Guide

RFI

– radio-frequency interference
– RCRA facility investigation
– Remedial Facility Investigation
– Remedial Feasibility Investigation

RFO

request for offer

RFP

– request for proposal
– reversed-field pinch
– reversed-field-pinch (device)
– Rocky Flats Plant (Golden, Colorado)

RFPG

Radio Frequency Protection Guide

RFQ

– radio-frequency quadrupole
– Request for Quotation

RFTF

Radio Frequency Test Facility

RIDS

Records Inventory and Disposition Schedules

RFB

Recording for the Blind (Oak Ridge)

RMBL

Rocky Mountain Biological Laboratory

RICS

reactor instrumentation and control system

RLI

radcal level instrument

RLLC

replacement limited life component

RLP

– Radioluminescent Lighting Program
– rotatable log periodical

RLS

rubber-lined steel

RLU

relative light unit

RM

– reactor manufacturer
– research material
– river mile

RMA

– Radiological Management Area
– Return Merchandise Authorization (Computer Resource Systems)
– Rocky Mountain Arsenal

RL

Richland Operations Office (DOE)

RMB

Research Management Branch

RK

river kilometer

RMC

research material collection (inventory; used with loans, isotopes, etc.)

RMCL

recommended maximum contaminant level

RMD

Radiation Monitoring Department

RME

reasonable maximum exposure

RMFE

Russian Ministry of Fuel and Energy

RMI

– Reactive Metals, Inc.
– repetitive motion injury

RMIC

– Regional Medical Information Coalition
– Research Materials Information Center

REDES

Regional Emission Database and Evaluation System

RAMPAC

radioactive materials packaging

RMAL

Radioactive Materials Analytical Laboratory (at ORNL)

RIM

– radcal inventory meter
– Recreation Information Management

RI

– remedial investigation
– Rhode Island (use only with ZIP code addresses)
– Rockwell International

RIF

Reduction in Force

RI/FS

remedial investigation/feasibility study

RIHRA

Research to Improve Health Risk Assessments (program)

RII

– rainfall induced infiltration
– recordable injury or illness (incidence rate)

RIIA

Regional Issue Identification and Assessment

RIIC

recordable injury/illness incident case

RIIR

recordable injury/illness rate (per 200,000 employee hours worked)

RLA

running-load amps

RIK

replacement in kind

RID

– reconstructive inverse dynamics
– Registry of Interpreters for the Deaf
– Remove Intoxicated Drivers
– requirements information document

RIMS

– redundant instrument monitoring system
– resonance ionization mass spectrometry

RIP

– RCRA implementation plan
– reduction in payment
– Regional Inspection Report (NRC)
– Retirement Incentive Program

RIS

– radiation-induced segregation
– regulatory impact statement
– Reporting Identification Symbol
– Research Instruments Section (I&C)
– resonance ionization spectroscopy
– Risk Information System

RISC

reduced instruction set computer

RISP

Robotics and Intelligent Systems Program

RITF

Radiological Instrumentation Test Facility

RITTA

RCRA Integrated Training and Technical Assistance

RJB

reference junction box

RJSCEE

Russian Joint Stock Company of Energy and Electrification

RILWAS

Regional Integrated Lake-Watershed Acidification Study (EPRI)

RERC

– Reactor Experiments Review Committee
– Radiation Effects Research Council

REE

Resource and Environmental Economics

REED

– Reactor Experimental Engineering Division
– Regional Emissions Evaluation Database
– Rural Electrical Energy Demand (model)

RETA

R. E. Timm and Associates

RET

renewable energy technology

REST

Residence in Science and Technology

RESAR

reference safety analysis report (NRC)

RESA

– Regional Environmental Systems Analysis (NSF project)
– Scientific Research Society of America

rem

[spell out; not an abbreviation but a full word derived from roentgen equivalent man; plural is "rem" or "rems" (DPG prefers "rem" for both singular and plural); convert to SI: sievert (Sv); sometimes "rem" is acceptable]

RERTR

Reduced Enrichment Research and Test Reactor

RER

– radiological event report
– regulatory effectiveness review

REP

radiological emergency preparedness

rep

[spell out; not an abbreviation but a full word derived from roentgen equivalent physical; plural is "rep" or "reps"; convert to SI: sievert (Sv); sometimes "rep" is acceptable]

REOI

request for expression of interest

REMS

Radiation Evaluation and Management System

RELM

Regional Energy Location Model

ref(s).

reference(s)

RES

Remote Excavator System

REMP

Radiological Environmental Monitoring Program

REGNEG

regulatory negotiated rulemaking (preferred over "regneg")

REIRS

radiation exposure information reporting system

REFLEX

Remote Fluvial Experimental Series

REL

relative exposure limit

regneg

regulatory negotiated rulemaking ("REGNEG" is preferred)

RIA

– regulatory impact analysis
– Rock Island Arsenal (U.S. Army)

RETF

Recycle Equipment Test Facility (Japan)

REM

riverine emergent

REMOTEC

Remote Technology Corporation

SPOC

single point of contact

SPOIE

Society of Photo-Optical Instrumentation Engineers

SPND

self-powered neutron detector

SPORT

single-pallet-only rocket transporter

SPMS

– Safety Performance Measurement System
– strategic planning and management system

SPDS

Safety Parameter Display System

SPM

site project manager

SPO

South Pole Observatory (Antarctica)

SPL

sound pressure level

SPIE

Society of Photo-Optical Instrumentation Engineers

SPI

– schedule performance index
– Socioeconomic Performance Initiative (BM&A)

SPGD

self-powered gamma detector

SPFH

heating seasonal performance factor (also HSPF)

SPE

– Society of Professional Engineers
– solid phase extraction

SPEERA

Secretarial Panel for the Evaluation of Epidemiology Research Activities

SPRC

Sandia Pulsar Reactor Core

SPERT

Special Power Excursion Reactor Test

SPFC

cooling seasonal performance factor (also CSPF)

SPF

– seasonal performance factor
– Slow Positron Facility (proposed for ANS)
– standard project flood

SPG

single phase to ground

SRT

Special Response Team

SPP

standard practice procedure

SRI

select rod insertion

SRIC

short-rotation intensive culture (woody energy feedstocks)

SRIDP

Savannah River Integrated Demonstration Project

SRIP

– Soldier-Robot Interface Project
– Special Retirement Incentive Program

SRL

– Savannah River Laboratory
– structural return loss

SRM

– shared resource management
– standard reference material

SRO

– Salt Repository Office
– Savannah River Operations (DOE)
– senior reactor operator
– short-range order
– Southern Regional Office/Savannah River Operations (DOE)

SRP

– Savannah River Plant
– Savannah River Project
– short-range plan
– soluble reactive phosphorus
– standard review plan
– Summer Research Program

SRF

State Revolving Fund

SRSS

secondary reactor shutdown system

SREX

strontium extraction

SRTC

Savannah River Technology Center

SRTU

substation remote terminal unit

SRW

– solid radioactive waste
– strategic reconnaisance wing

SRWCP

Short Rotation Woody Crops Program

SS

– safety study
– sole source
– solid state
– Solid State Division (ORNL)
– stainless steel
– steady state

SS&EM

Safeguards, Security, and Emergency Management

SS&EP

Safeguards, Security, and Emergency Preparedness Division

SSA

– Social Security Administration
– System Safety Analysis

SSAR

– site safety analysis report
– standard safety analysis report

SSARR

Streamflow Synthesis and Reservoir Regulation (model)

SRS

– Savannah River Site
– software requirement specification

sr

steradian

SPREX

Spring Runoff Experiment (DOE)

SPRM

Site Procedures and Records Management (Organization) (K-25)

SPRPMO

Strategic Petroleum Reserve Project Management Office

SPRPO

Strategic Petroleum Reserve Project Office

SPT

Strategic Planning Team

SPWTF

Steam Plant Wastewater Treatment Facility

sq

square

SQ

splat quenched

SQA

software quality assurance

SRFD

Secret Formerly Restricted Data (classification)

SQL

Structured Query Language (ORACLE)

SPR

– single-point resistance (geophysical logging)
– spill prevention and response
– state-protected river
– Strategic Petroleum Reserve
– surface-penetrating radar

Sr

strontium (element, Z = 38)

SR

– Savannah River Operations Office (DOE)
– spills and releases
– state route
– surveillance requirement
– synchrotron radiation
– systems requirement

SRA

– Society for Risk Analysis
– Special Recognition Award
– state recreational area

SRBC

Susquehanna River Basin Commission

SRC

– Site Records Center
– spill response coordinator
– solvent refined coal
– Standard Requirement Code
– Stockpile Readiness Campaign
– Synergic Resource Corporation

SRC/UIC

Standard Requirement Code/Unit Identification Code

SRCPP

Solvent Refined Coal Pilot Plant

SRD

– Secret Restricted Data (classification)
– systems requirement and description
– systems requirement document

SRE

Sodium Reactor Experiment

SREMP

source region electromagnetic pulse

SQIPT

Site Quality Improvement Program Training

SOCMA

Synthetic Organic Chemical Manufacturers Asssociation

SNT

– sensitive nuclear technology
– Snettisham Project Office (DOE)

SOJT

supervised on-the-job training

SOI

silicon on insulator

SOFRP

Site Office Facility Representative Program (DOE)

SOFIA

Stratospheric Observatory for Infrared Astronomy

SOFC

solid oxide fuel cell

SOLMOD

Systems Integrations Operations/Logistics Model

SOCMI

synthetic organic chemical manufacturing industries

soln

solution (MSDS)

SOC

– Site Operations Center
– synthetic organic chemical

SOAP

State Oversight Agreement Program

SO2

sulfur dioxide

SO

– safety officer
– system owner

So

tensile strength

SNUR

significant new use rule

SPCC

– spill prevention control and countermeasure
– Spill Prevention, Control and Countermeasures Plan

SOCOM

Special Operations Command

SOW

– scope of work
– statement of work

sp vol

specific volume

sp ht

specific heat

sp gr

specific gravity

SP

– spontaneous potential (geophysical logging)
– spouse preference (U.S. Army)
– steam plant

Sp

Symplectic (math)

sp

spin (math)

sol

soluble

SOx

sulfur oxide(s)

SNSRC

Swedish Natural Science Research Council

SOV

solenoid-operated valve

SOTACA

State-of-the-Art Contingency Analysis

SOSG

Standard Operating Safety Guidance

SoSAS-II

Sonar Signal Analysis System Phase II

SoSAS

Sonar Signal Analysis System

SOP

– Save Our Planet
– standard operating procedure

SOO

State Oversight Office (ORNL)

SOX

oxides of sulfur

SMUD

Sacramento Municipal Utility District

SNUPPS

Standardized Nuclear Unit Power Plant System

SNC

– significant noncompliant (facility)
– significant noncomplier

SNAS

Strategic National Alternatives Study

SNARL

suggested no adverse response level

SNAP

– Shipboard Nontactical ADP Program
– Sneh Aero Electric Power (Israel)
– space nuclear auxiliary power

SNA

Systems Network Architecture

spall

spallation

SMWG

Standards Management Working Group

SNF

spent nuclear fuel

SMTP

Simple Mail Transfer Protocol

SPARC

Students Promoting Awareness of Races and Culture

SPAWAR

U.S. Navy Space and Naval Warfare Systems Command

SPC

– Strategic Planning Committee (ORNL)
– Superconductivity Pilot Center (ORNL)

SPCCCP

spill prevention control, countermeasures and contingency plan

SPCCP

Spill Prevention Control and Countermeasures Plan

SPCT

Subproject Coordination Team

Sn

tin (element, Z = 50)

SNLT

Sandia National Laboratory Tonopah Test Range

SNSI

Secret National Security Information

SNSF

(a project in Oslo, Norway)

STI

– Scientific and Technical Information
– Standard Technology, Inc.
– Steel Tank Institute

SNS

Spallation Neutron Source (formerly National Spallation Neutron Source)

SSAS

sonar signal analysis system

SNR

– Schenectady Naval Reactors Office (DOE)
– signal-to-noise ratio (see S/N)
– Startup Notification Report
– Supplier Nonconformance Report

SNET

Southern New England Telephone Company

SNM

– Society of Nuclear Medicine
– special nuclear material
– Special Nuclear Material (license)

SPD

– Security Patrol Department
– self-powered detector
– Small Projects Design (group)
– Summary Plan Description

SNLN

Sandia National Laboratory Nevada Test Site

SNLL

Sandia National Laboratories-Livermore

SNLA

Sandia National Laboratories-Albuquerque

SNL

Sandia National Laboratories

SNIH

significant, nonstandard industrial hazard

SNG

substitute natural gas

SPA

State Program Advisory

SNMP

Simple Network Management Protocol

SURnet

Southeastern University Research Network

SUBWOG

Subcommittee of JOWOG (Joint Working Group)

SUIT

State Unemployment Insurance Tax

SUNY

State University of New York

SUP

soluble unreactive phosphorus

sup

– superior (math)
– supremum (math)

SUPO

Los Alamos (super power) Boiling Water Reactor

SVGA