Browse Acronyms

Browse the acronym list:

C Listing

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

c
crystalline

C&REP
Conservation and Renewable Energy (programs) (ORNL)

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

C&UPP
College and University Partnership Program

C-CAP
Coast Watch Change Analysis Program

C-E
Combustion Engineering (also CE)

C-MU
Carnegie-Mellon University

C-RD
Confidential-Restricted Data (classification)

c-Si
crystalline silicon

c.g
center of gravity

C.I.
cast iron

C.I.P.
cast in place

c.m.
center of mass

c.o.b.
close of business (also COB)

c.o.d.
cash on delivery (also COD)

C.V.
coefficient of variation (math)

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

C/TIO
Classification and Technical Information Office

C₁₈H₁₅PO₃
triphenyl phosphate

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)]

C₂ClF₅
chloropentafluoromethane[Freon 115 (refrigerant)]

(C₂H₅)₃N
triethylamine

C₃H₈
propane

C3I
command, control, communications, and information

C₄F₁₀
perfluorobutane (Teflon derivative being tested for CFC substitute; will not harm ozone layer)

C₄F₈
perfluorocyclobutane (being tested for CFC substitute; will not harm ozone layer)

C₆₀
60-atom cluster (buckyball)

C₆F₆
hexafluorabenzene

C₆H₅SH
thiophenal

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

Ca
calcium (element, Z = 20)

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

CaCO₃
calcium carbonate

CACS
Commercial and Apartment Conservation Service

CACSD
Computer Aided Control Systems Design

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

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

CADAM
computer-aided design and augmented manufacturing

CADD
computer-aided design and drafting

CADRE
computer-assisted detection and report enhancement

CADS
Characterization Analysis Database System

CAE
computer-aided engineering

CAER
Community Awareness and Emergency Response

CaF(Eu)
europium-doped calcium fluoride

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

cal
calorie [convert to SI: joule (J)]

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)

CALMMS
Computerized Air Launched Missile Management Support

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

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

CAMDS
Chemical Agent Munitions Disposal System

CAMP
– Capital Asset Management Process
– Capital Assets Management Plan

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

CAPA
– computer-aided personnel accountability
– Critical Aquifer Protection Area

CAPCA
closure and postclosure activity

CAPE
Civilian Applications Program Engineering

CAPP
computer-aided process planning

CAPS
Corrective Action Planning System

CAR
– computer-aided retrieval
– corrective action report

CARB
Corrective Action Review Board

CARER
Center for the Advancement of Radiation Education and Research

CARES
Central America Rural Electrification Support (Program)

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

CARMA
Cartesian Master Arm (robotics)

CARS
Corrective Action Report and Status (form)

CART
Cloud and Radiation Testbed

CARTS
Critical Actions Requirements Tracking System

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

CASE
computer-aided software engineering

CASM
commercial advanced servomanipulator

CaSO₄
calcium sulfate

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)

CATS
– Computer Assisted Tracking System
– Correspondence Action Tracking System

CATV
cable television

CAU
Clark Atlanta University

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
Commerce Business Daily

CBD
– Characteristics Data Base
– chronic beryllium disease

CBDPP
Chronic Beryllium Disease Prevention Program

CBE
Center for Business and Economic Research (UT)

CBED
convergent-beam electron diffraction/diffractor

CBH
cellobiohydrolase

CBI
confidential business information

CBN
Classified Broadband Network

CBO
Congressional Budget Office

CBOD
carbonaceous biochemical oxygen demand

CBR
California bearing ratio

CBRC
Commission on Base Realignment and Closure (DOD)

CBS
– Center for Biological Sciences
– cost breakdown structure

CBT
computer-based training

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

CCBC
Council of Community Blood Centers

CCBP
coal combustion by-product

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

CCCTF
Core Conduction Cooldown Test Facility (MHTGR)

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

CCDIS
charge-coupled device imaging spectrometer

CCDM
Consultative Committee for the Definition of the Meter

CCDS
Consultative Committee for the Definition of the Second

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)

CCI
– Canine Companions for Independence
– Controlled Cryptographic Item

CCIX
continuous countercurrent ion exchange

CCl₂F₂
dichlorodifluoromethane [Freon 12 (refrigerant)]

CCl₂FCClF₂
trichlorotrifluoromethane (refrigerant)

CCl₂FCH₃
dichlorofluoroethane (refrigerant)

CCl₃F
trichlorofluoromethane (refrigerant)

CCl₃F₃N₂
fluorotrichloromethane [Freon 11 (refrigerant)]

CCl₄
carbon tetrachloride

CClF₂CClF₂
dichlorotetrafluoroethane (refrigerant)

CClF₂CF₃
chloropentafluoroethane(refrigerant)

CClF₃
chlorotrifluoromethane [Freon 13 (refrigerant)]

CCLR
cooling collector load ratio

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

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

CCRP
– Clark Center Recreation Park
– Comprehensive Classification Review Program

CCS
Center for Computational Sciences

CCT
– Clean Coal Technology
– comfort cooling tower

CCTDP
Clean Coal Technology Demonstration Program (DOE)

CCTF
Cylindrical Core Test Facility (Japan)

CCTP
Clean Coal Technology Program

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

CCTV
closed-circuit television

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

CCV
control combustion Venturi

CCW
component cooling water

CCWE
constituent concentrations in waste extract

CCWF
Central Chilled Water Facility

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

CD-ROM
compact disc, read-only memory

CD/NSWC
Carderock Division, Naval Surface Warfare Center (formerly DTRC)

CDA
Copper Development Association

CDB
Characteristics Data Base

CDC
– Centers for Disease Control
– commercial deployment contractor

CDD
cooling degree-day

CDDB
Central Demand Data Base

CDE
collective dose equivalent

CDEP
Cooperative Development Energy Program

CDF
Cumulative Distributive Function

CDH
Colorado Department of Health

CDI
calculated daily intake

CDIAC
Carbon Dioxide Information Analysis Center

CDIARP
Carbon Dioxide Information Analyses and Research Program

CDIC
Carbon Dioxide Information Center

CDIF
Component Development and Integration Facility

CDL
chemical double layer

CDL VII
Construction Demolition Landfill VII

CDL VII
Construction Demolition Landfill VII

CDM Federal
CDM Federal Programs Corporation

CdO
cadmium oxide

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

CDWS
Civil Defense Warning System

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

Ce
cerium (element, Z = 58)

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

CED
Chemical Engineering Design

CEDE
committed effective dose equivalent

CEDMCS
control element drive mechanisms control system

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

CEI
Compliance Evaluation Inspection

CELDS
Comprehensive Environmental Legislative Data System

CELV
Complementary Expendable Launch Vehicle

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

CEMP
– Central Emergency Management Plan
– Comprehensive Emergency Management Plan

CEMS
– continuous emissions monitoring system
– conversion electron Mössbauerspectroscopy

CEMT
Capacity Expansion Management Team

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

CEO
chief executive officer

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

CEPOD
catalyzed electrochemical plutonium oxide dissolution

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

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

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

CERR
Center for Excellence in Reactor Operations

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)

CESARm
Center for Engineering Systems Advanced Research Manipulator (ORNL)

CESQG
conditionally exempt small-quantity generator

CESR
cooling energy supply rate

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)

Cf
californium (element, Z = 98)

cf
compare

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

CF₃CH₂F
tetrafluoroethane (refrigerant)

CF₃CHCl₂
dichlorotrifluoroethane (refrigerant)

CF₄
– carbon tetrachloride
– tetrafluoromethane [Freon 14 (refrigerant)]

CFA
central facilities area

CFADC
Controlled Fusion Atomic Data Center

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

CFCC
continuous fiber ceramic composite

CFD
computational fluid dynamics CFDA

CFEM
combined fates and effects model

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"]

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

CFSP
Cooperative Forest Studies Program (ORNL)

CFTL
component flow test loop

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

CGLG
Council of Great Lakes Governors

CGM
– Center for Gear Metrology
– Computer Graphics Metafile

CGP
Common Ground Process (DOE)

CGPM
General Conference on Weights and Measures

CGRADSTA
Coast Guard Radar Station

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

CG_W
concentration guide for water

CH
contact handled

CH-TRU
contact-handled transuranic waste

CH/RH-LLW
contact-handled/remotely handled low-level waste

CH₂
hydrocarbon

CH₃CClF₂
chlorodifluoroethane (refrigerant)

CH₃CHF₂
difluoroethane (refrigerant)

CH₄
methane

CHABA
Committee on Hearing, Bioacoustics, and Biomechanics

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

CHAMPUS
Civilian Health and Medical Program of the Uniformed Services

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

CHIL
Consolidated Hazardous Items List

CHIP
chemical hazard information profile

CHMM
Certified Hazardous Materials Manager

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

CIAR
Center for Indoor Air Research

CIC
– compensated ion chamber
– Corporate Information Center

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

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)

CIH
Certified Industrial Hygienist

CIIDF
Class II disposal facility

CIM
– computer-integrated manufacturing
– Corporate Information Management

CIMA
Cellulose Insulation Manufacturers Association

CIMLINC
computer-integrated manufacturing LINC system

CIMP
Corporate Information Management Policy

CIMSA
Corporate Information Management Strategies and Architectures

CIMSC
Corporate Information Management Steering Council

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

cir mil
circular mil

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

CIRM
Certified in Integrated Resource Management (APICS)

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

Cl₂
chlorine gas

CLB
current licensing basis

CLC
– chlorocarbon
– Computer Learning Center (Knoxville)

CLEO
classified literature searching system (OSTI)

CLIMAP
Climate Long-Range Investigation Mapping and Prediction

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

CLR
collector load ratio

CLRC
Construction Labor Research Council

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

cm/s
centimeters per second

cm²
square centimeter

cm³
cubic centimeter

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

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

CMC
– carboxymethyl-cellulose
– Ceramic Manufacturability Center

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)

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

CMOD
crack mouth opening displacement

CMOS
complementary metal-oxide semiconductor

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

CMPC
Classified Matter Protection and Control

CMR
– consolidated Materials Report
– continuous metallothermic reduction

CMS
corrective measures study

CMSA
Consolidated Metropolitan Statistical Area

CMSC
Central Manufacturing Support Complex

CMT
– Center for Manufacturing Technology
– Crisis Management Team

CMU
concrete masonry unit

CNC
Computer Numerical Control (ORNL)

CNCMC
Computer Numerical Control Machine Center (ORNL)

CNEPA
Comprehensive National Energy Policy Act of 1992

CNF
Central Neutralization Facility

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

CNSI
Confidential National Security Information (also C/NSI)

CNWDI
Classified Nuclear Weapon Data Information

Co
cobalt (element, Z = 27)

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

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

CO₂
carbon dioxide

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

coeff
coefficient (math)

COEI
Composition of Ending Inventory

COFO
conduct of facility operations

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)

colog
cologarithm (math)

COM
– colloidal organic macromolecule
– computer output microfilm/microfiche

COMET
Center of Model Evaluation Technology

COMIT
Conduct of Operations Management Issues Team

CoMO
Consolidated Management Office

comp(s).
compiler(s) (use in citations)

COMPMECH
compensatory mechanisms in fish populations

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

const
constant (math)

CONUS
continental United States (see OCONUS)

COO
chief operating officer

COOC
Conduct of Operations Oversight Council

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
Construction Occupational Safety and Health

cosh
hyperbolic cosine (hyperbolic function)

COSPAR
Committee on Space Research

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

CPAF
cost plus award fee

CPAO
Central Public Affairs Office

CPBT
core pressure boundary tube

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

CPED
Computational Physics and Engineering Division (ORNL)

CPF
carcinogenic potency factor

CPFF
cost plus fixed fee

CPI
– characters per inch
– chemical process industry

CPIF
cost plus initiative fee

CPIM
Certified Production and Inventory Manager (APICS)

CPL
Component Preparation Laboratory

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

cpm
– counts per minute
– cycles per minute

CPNX
combined pulsed-neutron and X-ray interrogation inspection

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

CPTP
Columbia Plateau Techtonic Province

CPU
central processing unit (preferred over "cpu")

cpu
central processing unit ("CPU" is preferred)

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

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

CRACS
chemical and radiological analysis computer system

CRAD
Criteria Review and Approach Document

CRAD(s)
Criteria and Review-Approach Document(s)

CRADA
cooperative research and development agreement

CRAF
Comet Rendezvous Asteroid Flyby

CRAVE
Carcinogen Risk Assessment Verification Enterprise

CRB
– change Review Board
– Cost Risk and Benefit

CRBAWP
Chestnut Ridge Borrow Area Waste Pile

CRBED
commercial reference building energy demand

CRBR
Clinch River Breeder Reactor

CRBRP
Clinch River Breeder Reactor Project/Plant

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

CRD
– confidential-Restricted Data
– control rod drive

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

CRDM
control rod drive mechanism

CRDR
control room design review

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

CREDO
Centralized Reliability Data Organization

CREM
classified removable electronic media

CRESO
Clinch River Environmental Studies Organization

CRG
Configuration Review Group

CRHR
Chestnut Ridge Hydrogeologic Regime

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

CRK
Clinch River kilometer

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

CRM
– center for Risk Management
– Clinch River mile

CRP
Coordinated Research Program (IAEA)

CRPS
control rod power supply

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

CRRFI
Clinch River Resource Conservation and Recovery Act Facility Investigation

CRRI
Clinch River Remedial Investigation

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

CRSDB
Chestnut Ridge Sediment Disposal Basin

CRSP
Chestnut Ridge Security Pits

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

CRTGA
control room toxic gas analyzer

CRTP
Civilian Reactor Technology Program

CRWQCB
California Regional Water Quality Control Board

CRZ
Contamination Reduction Zone

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

Cs
cesium (element, Z = 55)

C_s
saturation concentration

CS&H
Central Safety and Health (organization)

CS&HF
Cognitive Systems and Human Factors (group of EP&M)

CS-CIS
Common Support - Common Industrial Support

CS-G&A
Common Support - General and Administrative

CS²
cost/schedule control systems

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

CSAM
Center for the Study of Advanced Materials

CSAO
Construction Safety Association of Ontario

CSAP
Corporate Self-Appraisal Program

CSAR
conceptual safety analysis report

CSAU
code scaling applicability and uncertainty

CSAUP
Comprehensive Safety Assessment and Upgrade Program

CSC
– civil Service Commission
– cooling seasonal cost

csc
cosecant (trigonometric function)

csch
hyperbolic cosecant (hyperbolic function)

CSCSC
cost/schedule control systems criteria

CSD
– cold shutdown
– critical solvent de-ashing

CSDD
conceptual system design description

CSDF
Chemical Stockpile Disposal Facility

CSDNA
CF-source-driven-noise analysis

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

CSDS
Client Server Development System (C&TS)

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

CSEP
Confined Space Entry Program (K-25)

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

CSET
Central Safety Evaluation Team

CSETMG
Central Safety Evaluation Team Management Group

CSETWG
Central Safety Evaluation Team Working Group

CSG
– coding and software generation
– combat support group

CSHEAC
Central Safety, Health, and Environmental Affairs Committee

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

CSIRO
Commonwealth Scientific and Industrial Research Organization

CSLF
Centralized Sanitary Landfill

CSLF II
Centralized Sanitary Landfill II

CSM
conceptual site model

CSMA
Chemical Specialties Manufacturing Association

CSMA/CD
carrier sense multiple access with collision detector (computer term)

CSMO
Central Scrap Management Office

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

CSO
– combined sewer overflow
– computer security officer

CSP
Certified Safety Personnel

CSPE
chlorosulfonated polyethylene

CSPF
cooling seasonal performance factor (also SPFC)

CSPI
Continuous Safety Performance Improvement

CSPP
Computer Systems Policy Project

CSPT
core support performance test

CSPUC
Ceramic Specimen Preparation User Center (HTML)

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

CSS
Command Software Systems (a company name)

CSSA
Central Safeguards and Security Agreement

CSSG
Central Safeguards and Security Group

CSSO
computing system security officer

CST
Chemical Systems Test

CSTC
Combat Support Training Complex

CSWBS
Cost Summary Work Breakdown Structure

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

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

CTA-CTB
smear counter (alpha)-smear counter (beta)

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

CTC
compatibility test chamber

CTCS
Classified Timesharing Computer System

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

CTE
coefficient of thermal expansion

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

CTG
control technique guidance

ctg
cotangent ("cot" is preferred) (math)

CTI
Cooling Tower Institute

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

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

CTPD
core thermal power demand

CTR
– controlled thermonuclear reaction
– cycle-time reduction

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

CTS
Central Technical Services (ORNL)

CTSB
Computing and Telecommunications Standards Board

CTSO
Computing and Telecommunications Security Organization

CTT
cost and transit time

CTTF
Centrifuge Training and Testing Facility

Cu
copper (element, Z = 29)

CUA
– common User Access (IBM)
– controllable unit approach

CUMACS
Computerized Utilities Monitor and Control System

CuO
copper oxide

CUP
– carcinogen usage plan
– Cascade Uprating Program

CURE
chemical unit record estimate

CUSEC
Central United States Earthquake Consortium

CV
control valve

CVB
command validation block

CVCS
chemical volume control system

CVD
chemical vapor deposition

CVI
– chemical vapor infiltration
– Coastal Vulnerability Index

CVL
– continuous vent line
– copper vapor laser

CVM
cluster variation method

CVN
Charpy V-notch

CVR
combat vehicle robotics

CVS
– central vascular system
– clad vent sets

CVSA
Commercial Vehicle Safety Allowance

CVSHP
continuously variable-speed air-to-air heat pump

CVT
continuously variable transmission

CVTF
Centrifuge Verification Test Facility

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

cw
continuous wave

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

CWCGP
Cool Water Coal Gasification Project

CWDF
Central Waste Disposal Facility

CWE
current working estimate

CWFOO
Central Work for Others Office

CWM
– center for Waste Management
– chemical waste management

CWMD
Central Waste Management Division

CWMO
Central Waste Management Office

CWP
comprehensive work plan

CWSA
Containerized Waste Storage Area

CWSF
Chemical Waste Storage Facility

CWSS
Community Water Supply Survey

cwt
hundredweight [convert to SI: kilogram (kg)]

CX
Categorical Exclusion

CXE
charge-exchange excitation

CY
calendar year

cyl
cylinder

CYRTF
Coal Yard Runoff and Treatment Facility

CYWP
Current Year Work Plan

CZ
Clear Zone (USAF)

CZMA
Coastal Zone Management Act of 1972

°C
degrees Celsius (Celsius scale was formerly called centigrade)