Browse Acronyms
Browse the acronym list:
N Listing
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·m
newton meter
n-type
negative electrical carrier
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)
N.J.
New Jersey (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)
N.M.
New Mexico (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)
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/A
not applicable (also NA)
N2
nitrogen gas
N2O
nitrous oxide
Na
sodium (element, Z = 11)
NA
– North America(n)
– not applicable
– not available
Na/S
sodium sulfur
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
NAC
– National Asbestos Council
– Naval Avionics Center
– Nuclear Assurance Corporation
NACA
– National Advisory Committee for Aeronautics
– National Agricultural Chemicals Association
NACB
National Academy of Clinical Biochemistry
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
NAD
nuclear accident dosimeter
NADC
Naval Air Development Center
NADEP
Naval Air Depot
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
NAEIC
Nevada Applied Ecology Information Center
NAEM
National Association for Environmental Management
NAEP
National Association of Environmental Professionals
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
NAHB
National Association of Home Builders
NAHB/RF
National Association of Home Builders Research Foundation
NAIC
National Association of Insurance Commissioners
NAIRFA
Native American Indian Religious Freedom Act
NaK
sodium-potassium eutectic
NALC
Naval Aviation Logistics Center
NALDA
Naval Aviation Logistics Data Analysis
NALMS
North American Lake Management Society
NALR
National Acid Lake Registry
NAM
National Association of Manufacturers
NaNO3
sodium nitrate
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
NAPL
nonaqueous phase liquid
NAPM
National Association of Purchasing Management
NARA
– National Archives and Record Administration
– Network Address Registration and Assignment
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
NARUC
National Association of Regulatory Utility Commissioners
NAS
– National Academy of Sciences
– Naval Air Station
– neutron assay system
NaS
sodium sulfide
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
NATAS
National Appropriate Technology Assistance Service
NATO
North Atlantic Treaty Organization
NATTC
Naval Air Technician Training Center
NATTS
Naval Air Turbine Test Station
NAV
Norton Anti-Virus
NAVAIR
Naval Air Systems Command
NAVFAC
Naval Facility(ies)
NAVMAS
Navy Management Systems
NAVMASSO
Navy Management Systems Support Office
NAVMIS
Navy Manpower Information System
NAVORD
Naval Ordnance Laboratory
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
NB
Nebraska (use only with ZIP code addresses)
Nb
niobium (element, Z = 41)
NBAR
nonbinding preliminary allocations of responsibility
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
NBS
National Bureau of Standards (now NIST)
NBSR
National Bureau of Standards Reactor
NC
– noncarcinogenic
– North Carolina (use only with ZIP code addresses)
– numerical control
NCA
– National Coal Association
– National Command Authority
– Noise Control Act
NCA&TSU
North Carolina A&T State University
NCAI
National Congress of American Indians
NCAM
National Center for Advanced Materials (LBL)
NCAMP
National Coalition Against the Misuse of Pesticides
NCAR
National Center for Atmospheric Research (NOAA)
NCASI
National Council on Air and Stream Improvement
NCATH
National Campaign Against Toxic Hazards
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
NCG
– National Committee on Geology (National Academy of Sciences)
– noncondensible gas
NCHGR
National Center for Human Genome Research
NCI
National Cancer Institute
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
NCP
– National Contingency Plan
– National Oil and Hazardous Substances Pollution Contingency Plan (referred to as "National Contingency Plan")
NCPC
Navy Civilian Personnel Center
NCPDI
National Coastal Pollutant Discharge Inventory
NCPDS
Navy Civilian Personnel Data System
NCR
– Near-Commercial Reactor
– nonconformance report
NCRC
National Cave Rescue Commission
NCRP
– National Commission on Radiological Protection
– National Committee on Radiation Protection
– National Council on Radiation Protection
NCRPM
National Council on Radiation Protection and Measurements
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
NCSO
Nuclear Criticality Safety Organization [replaces Nuclear Criticality Safety Department (NCSD)]
NCSP
network communications software package
NCST
Nuclear Criticality Safety Training
NCTR
National Center for Toxicological Research
NCTTA
National Competitiveness Technology Transfer Act of 1989 (Pub. L. 100-189)
NCWP
Nuclear and Chemical Waste Program
nd
– no date
– not detected
Nd
neodymium (element, Z = 60)
ND
North Dakota (use only with ZIP code addresses)
Nd:YAG
neodymium:yttrium-aluminum-garnet (laser)
NDA
– national defense area
– nondestructive assay
NDAA
National Defense Authorization Act
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
NDR
Norris Dam Reservation (TVA)
NDRO
nondestructive readout
NDT
– nil-ductility - transition temperature
– nondestructive testing
NE
– nuclear energy
– Office of Nuclear Energy (DOE)
Ne
neon (element, Z = 10)
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)
NEC
National Electrical Code
NECPA
National Energy Conservation Policy Act of 1978
NECTL
National Education Commission on Time and Learning (U.S. Congress)
NEDA
National Environmental Development Association
NEDA CAAP
National Environmental Development Association Clean Air Act Project
NEDO
New Energy Development Organization
NEESA
U.S. Naval Energy and Environmental Support Activity
NEHA
National Environmental Health Association
NEHC
Naval Environmental Health Center
NEIC
National Enforcement Investigations Center
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
NELAP
National Environmental Laboratory Accreditation Program
NEMA
– National Electrical Manufacturers Association
– National Environmental Management Academy (ERWM)
NEMT
National Emergency Management Team
NEO
New Employee Orientation
NEP
– National Energy Plan
– nuclear electric propulsion
– Nuclear Energy Program (DOE)
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
NEPP
National Energy Policy Plan
NEPP-V
National Energy Policy Plan V
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
NES
– National Energy Strategy
– National Eutrophication Survey
NESC
– National Electric Safety Code
– National Energy Software Center
– National Environmental Supercomputing Center
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
NETG
National Education Training Group
NETL
National Energy Technology Laboratory
NETP
Nuclear Engineering Training Program
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
NFA
no further action
NFD
no fuel damage
NFIP
National Flood Insurance Program
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
NFTCP
Nuclear Facility Training Coordination Program
NG
newly generated
ng
nanogram
NGA
National Governors' Association
NGB
National Guard Bureau
NGL
natural gas liquid
NGP
National Group Process
NGPA
National Gas Policy Act of 1978
NGPM
new-car gallons per mile
NGS
– National Geodetic Survey (formerly U.S. Coast and Geodetic Survey)
– National Geographic Society
– neutral gas shielding
– nuclear generating station
NGVD
National Geodetic Vertical Datum (replaces mean sea level)
NH
– New Hampshire (use only with ZIP code addresses)
– Northern Hemisphere
NH3
ammonia
NH4NO3
ammonium nitrate
NHBA
National Home Builders Association
NHC
New Hope Center
NHE
National Housing Endowment
NHF
New Hydrofracture Facility
NHLBI
National Heart, Lung, and Blood Institute
NHM
National Historical Monument
NHP
New Hope Pond
NHPA
National Historic Preservation Act of 1966 (Amendments of 1980)
NHPP
National Heat Pump Program
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)
NIBS
National Institute of Building Sciences
NIC
– Network Interface Card
– newly industrialized country
NICHHD
National Institute of Child Health and Human Development
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)
NIGEC
National Institute for Global Environmental Change
NIGMS
National Institute of General Medical Sciences
NIGS
National Institute of General Sciences
NIH
National Institutes of Health
NiH2
nickel hydride
NII
Nuclear Installation Inspectorate (U.K.)
NIM
nuclear instrument module
NIMBY
Not in My Back Yard!
NIOSH
National Institute for Occupational Safety and Health
NIPDWR
National Interim Primary Drinking Water Regulations
NIPDWS
National Interim Primary Drinking Water Standards
NIPER
National Institute for Petroleum and Energy Research (Bartlesville, Okla.)
NIR
nonionizing radiation
NIRP
National Institute for Radiation Protection
NIRS
National Inorganics and Radionuclides Survey
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)
NJDEP
New Jersey Department of Environmental Protection
NJI&I
New Jersey, Indiana, and Illinois Railroad
NLC
– National Laboratory Consortium
– National League of Cities
NLDP
National Laboratory Discount Program
NLM
National Library of Medicine
NLO
National Lead of Ohio
NLRB
National Labor Relations Board
NLS
National Launch System (NASA)
NLT
no later than
NLTNIF
National Low-Temperature Neutron Irradiation Facility
NM
– nautical mile
– New Mexico (use only with ZIP code addresses)
nm
nanometer
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
NMFECC
National Magnetic Fusion Energy Computer Center
NMFFS
Navy Mobility Fuels Forecasting System
NMFS
National Marine Fisheries Service
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
NMLT
New Material Laboratory Test
NMLT/SFT
New Material Laboratory Test/Surveillance Flight Test
NMM
nuclear materials management
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 ("nmr" is preferred)
nmr
nuclear magnetic resonance (preferred over "NMR")
NMS&MC
Nuclear Monitoring Systems and Management Corporation
NMSS
Office of Nuclear Material Safety and Safeguards (NRC)
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
NNK
nonnuclear kill (weapon)
NNNAPB
next-nearest-neighbor antiphase boundary
NNS
nonnuclear safety
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
No(s).
number(s) [use only when followed by number(s)]
NO2
nitrogen dioxide(s)
NOA
notice of availability
NOAA
National Oceanic and Atmospheric Administration
NOAC
Nuclear Operations Analysis Center (formerly NSIC)
NOAEL
no observed adverse effect level
NOBCChE
National Organization for the Professional Advancement of Black Chemists and Chemical Engineers
NOC
Naval Ordnance Center
NOD
– nitrogenous biochemical oxygen demand
– notice of deficiency
NODC
National Oceanographic Data Center
NOEC
no-observed-effect concentration
NOEL
no observed effect level
NOF
Nuclear Orientation Facility
NOI
– notice of intent
– Notice of Involvement
NOL
Naval Ordnance Laboratory
NOM
natural organic matter
NOMS
National Organics Monitoring Survey
NON
notice of noncompliance
NONRAD
nonradioactive
NOO
naturally occurring organism
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
NORM
naturally occurring radioactive material
NORPAX
North Pacific Expedition
NORS
National Organics Reconnaissance Survey
NOS
– Naval Ordnance Station
– not otherwise specified
NOTS
Naval Ordnance Test Station
NOTU
Naval Ordnance Test Unit
NOUE
notification of unusual event
NOV
Notice of Violation
NOX
oxides of nitrogen
NOx
nitrogen oxide(s)
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)
NPARP
Nuclear Plant Aging Research Program (NRC)
NPB
neutral particle beam
NPB-GTF
Neutral Particle Beam - Ground Test Facility
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
NPE
– natural phenomena evaluation
– Nuclear Plant Experience (report)
NPEO
nuclear plant equipment operator
NPET
natural phenomena evaluation team
NPH
normal paraffin hydrocarbon
NPL
National Priorities List
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
NPPHSL
National Priority Pollutant and Hazardous Substance List
NPR
– Naval Petroleum Reserves in California
– new production reactor
NPR-HWR
New Production Reactor - Heavy-Water Reactor
NPRA
National Petroleum Refiners Association
NPRDC
Navy Personnel Research and Development Center (San Diego)
NPRDS
Nuclear Plant Reliability Data System
NPRM
notice of proposed rulemaking
NPRP
New Production Reactor Program
NPS
– National Park Service
– National Permit Strategy
– Nuclear Packaging Systems
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
NQA
nuclear quality assurance
NQA-1
Quality Assurance Standards for Nuclear Facilities (ANSI/ASME NQA-1)
NQAA
National Quality Assurance Agency
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
NRDA
Natural Resources Damage Assessment
NRDC
– National Resources Defense Council
– Natural Resources Defense Council
NRECA
National Rural Electric Cooperative Association
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)
NRHS
National Register of Historic Sites
NRI
– National Resource Inventory
– National Rivers Inventory
NRL
Naval Research Laboratory
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)
NRRI
National Regulatory Research Institute
NRRPT
National Registry of Radiation Protection Technologists (see also RRPT)
NRS
nonreactor safety
NRT
– National Response Team
– NEPA Review Team
NRTA
near-real-time accounting
NRTL
Nationally Recognized Testing Laboratory
NRTS
National Reactor Testing Station (Idaho)
NRWTF
Nonradiological Wastewater Treatment Facility
NRWTP
nonradiological wastewater treatment plant/program (ORNL)
NRZI
nonreturn-to-zero, inverted
Ns
nielsbohrium (element, Z = 107)
ns
nanosecond
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
NSC
– National Safety Council
– National Security Complex
– National Security Council
– Naval Supply Center
NSCANS
National Steering Committee for an Advanced Neutron Source
NSDWR
National Secondary Drinking Water Regulation
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)
NSLS
National Synchrotron Light Source (BNL)
NSMS
Network Security Management System
NSN
national stock number
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
NSPO
National Security Program Office
NSPP
Nuclear Safety Pilot Plant
NSPS
– New Source Performance Standards (EPA)
– New Source Protection Standards (EPA)
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)
NSSS
nuclear steam supply system
NSWC
Naval Surface Warfare Center (see CD/NSWC and DD/NSWC)
NSWI
National Safe Workplace Institute
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
NTIS
National Technical Information Service (Springfield, Virginia)
NTK
need to know
NTLA
Nevada Test Site, Los Alamos National Laboratory
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
NTRC
National Transportation Research Center
NTS
– Nevada Test Site
– not to scale
NTSB
National Transportation Safety Board
NTSC
National Television Standard Code
NTTC
Naval Technical Training Center
NTTIS
National Truck Trip Information Survey
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
NUMEC
Nuclear Materials and Equipment Corporation
NURE
National Uranium Resources Evaluation
NUREG
Nuclear Regulatory Guide (NRC reports category)
NUREPO
National Uranium Resource Evaluation ProjectOffice
NUS
Nuclear Utility Services Corporation
NUSC
Naval Underwater Systems Center
NUWES
Naval Undersea Warfare Engineering Station
NV
– Nevada (use only with ZIP code addresses)
– Nevada Operations Office (DOE)
NVI
normalized difference vegetation index
NVLAP
National Voluntary Laboratory Accreditation Program
NWA
national wilderness area
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
NWF
National Wildlife Federation
NWIG
Nuclear Weapons Information Group
NWIS
Nuclear Weapons Information System
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
NWTS
National Waste Terminal Storage
NWWA
National Water Well Association
NY
– New York (state) (use only with ZIP code addresses)
– New York Support Office (DOE)
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