Contents
Publication Information
Abstract
Introduction
Publication Information
Manuscipt Completed: April 1998
Date Published: July 1998
Information Management Division
Office of the Chief Information Officer
U.S. Nuclear Regulatory Commission
Washington, D.C. 20555-0001
Abstract
This collection of abbreviations in common use in the nuclear industry
and regulatory community was compiled from Nuclear Regulatory Commission
(NRC) and nuclear industry sources. It was published to assist agency
authors, readers, and stakeholders in identifying abbreviations for the
numerous organizational, scientific, and engineering terms that appear in
NRC printed and electronic information. The compilation is descriptive
rather than prescriptive. No one abbreviation is recommended to the
exclusion of another because the same abbreviation may with equal validity
apply to two or more terms.
Introduction
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The U.S. Nuclear Regulatory Commission (NRC) publishes this collection
of abbreviations to assist agency authors and readers and members of the
public in identifying the abbreviations for the numerous organizational,
scientific, and engineering terms that appear in NRC printed and
electronic information. This collection has been compiled from NRC and
nuclear industry sources and is descriptive rather than prescriptive. No
one abbreviation is recommended to the exclusion of another because the
same abbreviation may with equal validity apply to two or more terms.
An abbreviation is a shortened, condensed form of a
word or term. Some technical abbreviations, such as laser and scuba,
have been so widely disseminated that they now communicate successfully
without further definition.
Acronyms and initialisms are types of abbreviations.
- An acronym is an abbreviation that forms a
pronounceable term from the initial letters of a group of words: ANSI
is formed from American National Standards
Institute and LOCA from loss-of-coolant
accident.
- An initialism is an abbreviation formed from the
initial letters of a group of words for which each letter is
pronounced separately: EPZ is formed from emergency planning
zone and SGTS from standby gas
treatment system.
The NRC editorial staff offers the following suggestions for using
abbreviations:
- Spell out the term for an abbreviation the first time you use it in
text and follow the spelled-out term with the abbreviation in
parentheses: control rod drive (CRD). Repeat this process at the
beginning of each new section or chapter for printed publications.
- Restrict an abbreviation to one meaning in any one document. If you
designate NDT to mean nondestructive testing, do not designate NDT to
mean nil ductility temperature or any other term beginning with the
letters NDT in the same document. Spell out any other term that could
be abbreviated as NDT in that document.
This compilation includes major NRC program and staff offices, advisory
groups, panels, and boards but not NRC divisions, branches, and sections,
which can be found in the NRC Telephone Directory (NUREG/BR-0046). Some
abbreviations for organizations that no longer exist are included as
historical references.
This compilation does not include chemical elements, computer codes,
and most units of measurement. Many of these abbreviations appear in
readily accessible sources such as dictionaries, the Government
Printing Office (GPO) Style Manual, and other manuals.
Identical abbreviations appear in various forms (e.g., AA or A/A); they
are listed in this compilation in the following order: AA, aa, A/A, A-A,
A&A.
In general, the editorial staff observes the following rules for
forming plurals and for capitalizing and hyphenating abbreviations:
Plurals
To form most plurals, add a lowercase s without an apostrophe
preceding it to the abbreviation.
- DBAs for design-basis accidents
- PWRs for pressurized-water reactors
However, some abbreviations are identical in both singular and plural
constructions.
- ATWS for anticipated transient or transients
without scram
- GDC for general design criterion
or criteria
- LCO for limiting condition or conditions
for operation
- MOU for memorandum or memoranda of
understanding
- Use the same abbreviation for a plural construction when a word in a
term is an irregular plural (e.g., LRB for licensing review
basis or bases) or when any word in
a term except the last word is a regular plural, that is, formed by
adding s (e.g., COLSS for core
operating limit or limits
support system). Only the irregular
plurals, such as basis or bases, are given in this collection; plurals
formed by adding s to an internal or final word of a term are
not given.
Capitalization
Although most abbreviated terms are lowercase when written out, most of
their abbreviations are uppercase.
Do not capitalize specific parts of a nuclear system or facility, the
many job titles at a nuclear facility, and generic terms designating
equipment, systems, or programs.
- ACCWS for auxiliary component cooling
water system
- RPM for radiation protection manager
However, capitalize the names of specific facilities or reactors,
companies or organizations, and committees or special interest groups.
- ACNW for Advisory Committee on Nuclear
Waste
- RRA for Radiation Research Associates,
Inc.
- RRR for Raleigh Research Reactor
Hyphenation
To hyphenate a term from which an abbreviation is formed, follow the
general rules of hyphenation, particularly those given in the GPO
Style Manual.
Hyphenate unit modifiers used as adjectives and adverbs before a noun
in each term:
- LOCA for loss-of-coolant
accident, but not LOOP for loss of
offsite power
Do not hyphenate most short prefixes, such as co, de, pre, pro, and
re.
- DWCS for defueling water cleanup
system
- PTP for preoperational test program
The NRC welcomes new entries for future revisions of this collection.
Please send suggestions for new entries to the e-mail address <jfb1@NRC.GOV>
or write to the Technical Publications Section, Publishing Services
Branch, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.
A
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- AA
- access authorization
- AAA
- Agency Allegations Advisor
- AAAC
- Affirmative Action Advisory Committee
- Aac
- alternate ac
- AACC
- American Association for Contamination Control
- AAEC
- Australian Atomic Energy Commission
- AAECS
- auxiliary area environmental control system
- AAEGTS
- auxiliary area emergency gas treatment system
- AAHP
- American Academy of Health Physics
- AAM
- airborne activity monitor
- AAPM
- American Association of Physicists in Medicine
- AAR
- Aktiebolaget Atomenergi Research Reactor
- AARR
- Argonne Advanced Research Reactor
- AASHTO
- American Association of State Highway and Transportation Officials
- AATN
- Asociación Argentina de Tecnología Nuclear (Argentina)
- AB
- auxiliary boiler
- ABACC
- Argentine-Brazilian Agency for Accounting and Control of Nuclear
Material
- ABB-CE
- Asea Brown Boveri-Combustion Engineering, Inc.
- ABCC
- Atomic Bomb Casualty Commission
- ABET
- Accreditation Board for Engineering and Technology
- ABFS
- auxiliary building filter system
- ABGTS
- auxiliary building gas treatment system
- ABHP
- American Board of Health Physics
- ABHX
- air blast heat exchanger
- ABI
- auxiliary building isolation
- ABLE
- activity balance line evaluation
- ABMA
- American Boiler Manufacturers Association and Affiliated Industries
- ABNP
- Alan R. Barton Nuclear Plant
- ABR
- as-built reconciliation
- ABRR
- as-built reverification record
- ABST
- auxiliary building sump tank
- ABSVS
- auxiliary building special ventilation system
- ABT
- automatic bus transfer
- ABV
- auxiliary building ventilation
- ABWR
- advanced boiling-water reactor
- ABWRP
- American Boiling Water Reactor Program
- AC
- acid concentrator
- A&C
- adequacy and compatibility
- AC
- administrative control
- advisory committee
- air conditioning
- allegations coordinator
- ac
- alternating current
- A/C
- air conditioning
- A-C
- Allis-Chalmers Corp. or Allis-Chalmers Manufacturing Company
- ACA
- Arms Control Association
- ACAD
- air containment atmosphere dilution
- ACB
- air-operated circuit breaker
- Ateliers et Chantiers de Bretagne (France)
- ACC
- accumulator
- air-cooled condenser
- ACCWS
- auxiliary component cooling water system
- ACDA
- Arms Control and Disarmament Agency
- ACEC
- Ateliers de Constructions Electriques de Charleroi, S.A. (Belgium)
- ACF
- acid concentrator feed
- ampacity correction factor
- automatic control feature
- acfm
- actual cubic foot/feet per minute
- ACHP
- Advisory Council on Historic Preservation
- ACI
- American Concrete Institute
- automatic closure and interlock
- ACIWA
- ac-independent water addition
- ACL
- access control list
- alternate concentration limit
- ACLP
- above-core load pad
- above-core load plane
- ACM
- alternate contact mode
- auxiliary cooling method
- ACMUI
- Advisory Committee on the Medical Uses of Isotopes (NRC)
- ACNFS
- Advisory Committee on Nuclear Facility Safety (DOE)
- ACNP
- American College of Nuclear Physicians
- ACNS
- Advisory Committee on Nuclear Safety (Canada)
- ACNW
- Advisory Committee on Nuclear Waste (NRC)
- ACORN
- Association of Community Organizations for Reform Now
- ACOT
- analog channel operational test
- ACP
- auxiliary control panel
- ACPDS
- Advisory Committee on Personal Dosimetry Services (NSF)
- ACPR
- advanced core performance reactor
- advanced core pulsed reactor
- annular core pulsed reactor
- ACR
- advanced converter reactor
- attribute coverage report
- ACRE
- advanced compact reactor experiment
- ACRG
- Advanced Code Review Group (NRC)
- ACRI
- Air Conditioning and Refrigeration Institute
- ACRR
- annular core research reactor
- ACRS
- Advisory Committee on Reactor Safeguards (NRC)
- ACS
- Advanced Computer System
- alternate core spray
- American Chemical Society
- auxiliary cooling system
- ACSNI
- Advisory Committee on Safety of Nuclear Installations (U.K.)
- ACTIVITIES
- automated commitment tracking system
- ACU
- air cleanup unit
- AD
- assistant director
- A/D
- analog to digital
- ADAMS
- Agencywide Documents Access and Management System
- ADAS
- automatic data acquisition and storage
- ADC
- authorized derivative classifier
- ADDS
- applied digital data system
- ADEA
- Association Belge pour le Développement Pacifique de l'Energie
Atomique (Belgium)
- ADFCER
- Assistant Director for Fuel Cycle and Environmental Research
- ADI
- Applied Dynamics International
- ADM
- Administration, Office of (NRC)
- AND
- apparent discrepancy notification
- ADP
- automated data processing
- automatic data processing
- ADPE
- automatic data processing equipment
- ADR
- audit discrepancy report
- ADRS
- automated data retrieval system
- ADS
- automated data system
- automatic depressurization system
- automatic dispatch system
- ADT
- aerated drain tank
- ADU
- ammonium diuranate
- ADV
- atmospheric dump valve
- AE
- acoustic emission
- air ejector
- architect-engineer
- A/E
- architect-engineer
- A-E
- architect-engineer
- AEA
- Atomic Energy Act of 1954
- Atomic Energy Authority
- AEB
- Atomic Energy Bureau (Korea)
- auxiliary equipment building
- AEC
- Alternative Energy Coalition
- Atomic Energy Commission, U.S. (Became ERDA and NRC)
- AECB
- Atomic Energy Control Board (Canada)
- AECC
- Aerojet Energy Conversion Co.
- AECL
- AECL Technologies
- Atomic Energy of Canada, Ltd.
- AECLT
- Atomic Energy of Canada, Ltd., Technologies
- AECM
- Atomic Energy Commission Manual
- AECPR
- Atomic Energy Commission Procurement Regulation
- AEDE
- annual effective dose equivalent
- AEE
- Atomic Energy Establishment (Libya)
- AEEN
- Agenzia Europea per l'Energia Nucleare
- Agence Européenne pour l'Energie Nucléaire
- AEEW
- Atomic Energy Establishment of Winfrith (United Kingdom)
- AEF
- Argonne Experimental Facility
- AEGTS
- annulus exhaust gas treatment system
- AEI
- Associated Electric Industries Ltd. (United Kingdom)
- AEN
- Agence pour l'Energie Nucléaire (France)
- AENJ
- Atlantic Electric of New Jersey
- AEO
- Atomic Energy Organization (Iran)
- AEOD
- Analysis and Evaluation of Operational Data, Office for (NRC)
- AEOF
- alternate emergency operations facility
- AEOI
- Atomic Energy Organization of Iran
- AEOR
- Annual Environmental Operating Report
- AEP
- American Electric Power Co., Inc.
- AEPSC
- American Electric Power Service Corp.
- AERCW
- auxiliary essential raw cooling water
- AERE
- Atomic Energy Research Establishment (United Kingdom)
- AERO
- Association for Excellence in Reactor Operations
- AES
- aerospace and electronic systems
- AESJ
- Atomic Energy Society of Japan
- AETR
- advanced engineering test reactor
- advanced epithermal thorium reactor
- AF
- alternating field
- auxiliary feed
- auxiliary feedwater
- AF/AL
- as found, as left
- AFAS
- auxiliary feedwater actuating system
- AFB
- Air Force base
- AFBMA
- Anti-Friction Bearing Manufacturers Association, Inc.
- AFC
- automatic flow control
- AFD
- acid fractionator distillate
- axial flux difference
- AFDC
- auxiliary feedwater discharge cross-connection
- AFDS
- automatic fire detection system
- AFI
- Air Filter Institute
- AFL
- active fuel length
- AFNE
- Americans for Nuclear Energy
- AF
- NETFAir Force Nuclear Engineering Test Facility
- AFO
- auxiliary fuel oil
- AFOS
- auxiliary fuel oil system
- AFP
- auxiliary feedwater pump
- AFR
- acid fractionation recycle
- acid fractionator recycle
- away from reactor
- AFRRI
- Armed Forces Radiobiology Research Institute
- AFS
- auxiliary feedwater system
- AFSR
- Argonne Fast-Source Reactor
- AFW
- auxiliary feedwater
- AFWAS
- auxiliary feedwater actuation system
- AFWC
- auxiliary feedwater control
- AFWS
- auxiliary feedwater system
- AG
- Aerojet-General Corp.
- AGA
- automatic gas analyzer
- AGC
- advanced gas centrifuge
- AGCR
- advanced gas-cooled reactor
- AGC
- Aerojet-General Corp.
- AGL
- above-ground level
- AGMA
- American Gear Manufacturers Association
- AGN
- Aerojet-General Nucleonics
- AGNS
- Allied-General Nuclear Services
- AGR
- advanced gas-cooled reactor
- AGS
- alternating gradient synchrotron
- annular gas system
- AGU
- American Geophysical Union
- AGVC
- automatic governing valve control
- automatic governor valve control
- AGW
- accident-generated water
- AGZ
- actual ground zero
- A/H
- air handling
- AHFR
- Argonne High-Flux Reactor
- AHJ
- authority housing jurisdiction
- AHM
- auxiliary handling machine
- AHPA
- Archeological and Historic Preservation Act
- AHR
- aqueous homogeneous reactor
- AHTG
- ad hoc task group
- AHU
- air-handling unit
- AI
- artificial intelligence
- Atomics International
- authorized inspector
- AIA
- authorized inspection agency
- AICE
- American Institute of Chemical Engineers
- AID
- accident identification display
- Agency for International Development
- air inlet damper
- AIEE
- American Institute of Electrical Engineers
- AIF
- Atomic Industrial Forum, Inc. (now NEI)
- AIG
- antitrust and indemnity group
- AIGS
- auxiliary inerting gas subsystem
- AIHA
- American Industrial Hygiene Association
- AIHX
- auxiliary intermediate heat exchanger
- AIMME
- American Institute of Mining and Metallurgical Engineers
- AIMMPE
- American Institute of Mining, Metallurgical, and Petroleum Engineers
- AIMS
- automated information management system
- automatic isotopic measurement system
- AINSE
- Australian Institute of Nuclear Science and Engineering (now ANSTO)
- AI&O
- annual inspection and overhaul
- AIP
- American Institute of Physics
- approval in principle
- AIRI
- Atomic Industry Research Institute
- AIRP
- air intake, recirculation, and purification
- AIRS
- Advanced Incident Reporting System (IAEA/NEA)
- advanced instrumentation for reflood studies
- Automated Inspection Report System
- AIS
- accumulator injection system
- advanced isotope separation
- automated information system
- AISC
- American Institute of Steel Construction
- AISE
- Association of Iron and Steel Engineers
- AISI
- American Iron and Steel Institute
- AISS
- automated information systems security
- AISSP
- automated information system security plan
- AIT
- American Industrial Technologies
- American Institute in Taiwan
- augmented inspection team
- AITS
- action item tracking system
- AIX
- after ion exchanger
- AKK
- Atomkraftdonsortiet Krangede Ad & Co. (Sweden)
- AL
- action level
- analytical laboratory
- analytical limit
- ALAP
- as low as possible
- as low as practicable
- as low as practical
- ALARA
- as low as reasonably achievable
- ALARP
- as low as reasonably practicable
- ALATA
- as low as technically achievable
- ALCP
- area local control panel
- ALD
- acoustic leak detection
- ALI
- annual level of intake
- ALIP
- annular linear induction pump
- ALJ
- administrative law judge
- ALKEM
- Alpha Chemie und Metallurgie, G.m.b.H. (Germany)
- ALMPC
- Agency Labor-Management Partnership Committee
- ALMR
- advanced liquid metal reactor
- ALMS
- auxiliary liquid metal system
- ALP
- assembly language preprocessor
- ALPHGR
- average linear planar heat generation rate
- ALPR
- Argonne Low Power Reactor
- Army low-power reactor
- ALRR
- Ames Laboratory Research Reactor
- ALRS
- Apache Leap Research Site
- ALSI
- aluminum silicon alloy
- ALUPA
- Association Luxembourgeoise pour l'Utilisation Pacifique de
l'Energie Atomique (Luxembourg)
- ALWR
- advanced light-water reactor
- AMAD
- activity median aerodynamic diameter
- AMASS
- automated material accounting statistics system
- AMCA
- Air Moving and Conditioning Association
- AMCF
- alkali metal-cleaning facility
- AMCO
- Aerojet Manufacturing Company
- AMD
- alpha activity median diameter
- AMDEL
- Australian Mineral Development Laboratories
- AMF
- automated materials frisker
- AMI
- automatic motion inhibit
- AMIC
- Arkwright Mutual Insurance Co.
- AMN
- Ansaldo Meccanico Nucleare, SpA (Italy)
- AMPERE
- Atomes et Molecules pour Etudes Radio-Electriques (Switzerland)
- AMRR
- Army Materiels Research Reactor
- AMS
- aerial monitoring system
- Allegations Management System
- Army Map Service
- AMSAC
- ATWS (anticipated transient without scram) mitigating system
actuation circuitry
- AMU
- aqueous makeup
- atomic mass unit
- A/N
- alphanumeric
- as needed
- ANC
- advanced nodal code
- Aerojet Nuclear Company
- ANCC
- Associazione Nazionale per il Controllo della Combustione (Italy)
- ANDIN
- Associazione Nazionale di Ingegneria Nucleare (Italy)
- ANEC
- American Nuclear Energy Council
- ANF
- actinide nitride fuel
- actinide nitride fueled
- Advanced Nuclear Fuels Corporation
- ANFO
- ammonium nitrate and fuel oil
- ANGRY
- Anti-Nuclear Group Representing York
- ANI
- American Nuclear Industries
- American Nuclear Insurers
- authorized nuclear inspector
- ANIM
- Association of Nuclear Instrument Manufacturers
- ANL
- Argonne National Laboratory
- ANMC
- American National Metric Council
- ANN
- artificial neural network
- ANO
- Arkansas Nuclear One
- ANOVA
- analysis of variance
- ANP
- aircraft nuclear propulsion
- ANPR
- advance notice of proposed rulemaking
- ANPRM
- advance notice of proposed rulemaking
- ANR
- Association of Neutron Radiographers
- ANRA
- Armenian Nuclear Regulatory Authority
- ANRE
- Agency of Natural Resources and Energy (Japan)
- ANS
- American Nuclear Society
- aquatic nuisance species
- autodial network system
- ANSI
- American National Standards Institute
- ANSTO
- Australian Nuclear Science and Technology Organization (formerly
AINSE)
- AO
- abnormal occurrence
- air operator
- auxiliary operator
- axial offset
- AOA
- axial offset anomaly
- AOC
- action office contact
- augmented operator capability
- AOG
- acid fractionator off-gas
- acid off-gas
- augmented off-gas
- AOI
- abnormal operating instruction
- advance ordering information
- AOO
- anticipated operational occurrence
- AOP
- abnormal operating procedure
- AOR
- abnormal occurrence report
- AOT
- action outage time
- allowable outage time
- allowed outage time
- AOTA
- absorber open test assembly
- AOV
- air-operated valve
- AP
- access permit
- access permittee
- administrative procedure
- alkaline permanganate
- annulus pressurization
- antennas and propagation
- APA
- Administrative Procedure Act
- APC
- administration and project control
- agency program coordinator
- argon purge cart
- Atomic Power Construction Ltd. (United Kingdom)
- APCA
- Air Pollution Control Association
- APCEF
- Advanced Power Conversion Experimental Facility
- APCO
- Alabama Power Company
- APD
- axial power distribution
- APDA
- Atomic Power Development Associates, Inc.
- APDMS
- auxiliary power distribution monitoring system
- axial power distribution monitoring system
- APET
- accident progression event tree
- APEX
- Advanced Plant Experiment
- APFA
- accelerator pulsed fast critical assembly
- APHA
- American Public Health Association
- API
- absolute position indication
- American Petroleum Institute
- antecedent precipitation index
- APL
- Applied Physics Laboratory (University of Chicago)
- Arkansas Power & Light Co.
- authorized possession limit
- AP&L
- Arizona Power & Light Company
- APLHGR
- average planar linear heat generation rate
- APM
- air particulate monitor
- aluminum powder metallurgy
- APP
- advance procurement plan
- APPA
- American Public Power Association
- APPR
- Army Package Power Reactor
- APR
- advance production release
- Army Power Reactor
- automatic pressure relief
- APRF
- Aberdeen Pulsed Reactor Facility
- APRM
- average power range monitor
- APS
- accident-prone situation
- American Physics Society
- Arizona Public Service Co.
- atomic power station
- auxiliary power system
- AP600
- Advanced Plant, 600 MWe
- APSR
- axial power shaping rod
- APSRA
- axial power shaping rod assembly
- APT
- accelerator-produced tritium
- Applied Physical Technology Incorporated
- APTR
- advanced pressure tube reactor
- APU
- auxiliary power unit
- APWG
- action plan work group
- APWR
- advanced pressurized-water reactor
- AQL
- acceptable quality level
- AR
- activity ratio
- ARAC
- atmospheric release advisory capability
- ARACOR
- Advanced Research and Applications Corp.
- ARAVS
- auxiliary and radwaste area ventilation system
- ARB
- Allegation Review Board
- ARBOR
- Argonne Boiling Water Reactor
- ARC
- alarm response card
- Alliance Research Center
- alternate repair criteria
- alternative repair criteria
- auxiliary relay cabinet
- ARDA
- Atomic Research and Development Authority
- ARDM
- age-related degradation mechanism
- ARDUTLR
- aging-related degradation unique to license renewal
- ARE
- aircraft reactor equipment
- AREA
- American Railway Engineering Association
- Army Reactor Area
- ARG
- Accident Review Group (NRC)
- Argonaut
- Argonne nuclear assembly for university training
- ARHCO
- Atlantic Richfield Hanford Co.
- ARI
- alternate rod insertion
- ATWS (anticipated transient without scram) rod injection
- ARIS
- automated reactor inspection system
- ARM
- area radiation monitor
- ARMF
- Advanced Reactivity Measurement Facility
- ARMS
- aerial radiological measurement and survey
- aerial radiological measurements system
- area radiation monitoring system
- area radiological monitoring system
- ARO
- all rods out
- ARP
- accelerated requalification program
- alarm response procedure
- annunciator response procedure
- ARPA
- Archeological Resources Protection Act
- ARPI
- absolute rod position indication
- ARR
- Armour Research Reactor
- Association for Radiation Research (United Kingdom)
- ARRS
- airborne radioactivity removal system
- ARS
- acute radiation syndrome
- advance record system
- air return system
- amplified response spectrum/spectra
- ART
- aerosol release and transport
- anticipatory reactor trip
- ARTS
- anticipatory reactor trip system
- AS
- action statement
- Agreement State
- air supply
- auto sequential
- auxiliary steam
- A/S
- air supply
- ASA
- American Standards Association (now ANSI)
- ASADA
- Atomic Space and Development Authority
- ASC
- Administrative Services Center
- ASCE
- American Society of Civil Engineers
- ASCEG
- Association of South Carolina Electric and Gas Investors
- ASCII
- American Standard Code for Information Interchange
- ASCO
- American Switch Co.
- ASCS
- Agricultural Stabilization and Conservation Service
- ASD
- adjustable speed drive
- atmospheric steam dump
- ASDP
- alternative shutdown procedure
- ASEE
- American Society of Electrical Engineers
- ASEP
- accident sequence evaluation program
- ASG
- auxiliary steam generator
- ASGT
- asymmetric steam generator transient
- ASGTPTF
- asymmetric steam generator transient protective trip function
- ASHAE
- American Society of Heating and Air Conditioning Engineers
- ASHRAE
- American Society of Heating, Refrigeration and Air Conditioning
Engineers
- ASI
- adverse system interaction
- axial shape index
- ASIS
- American Society for Industrial Security
- ASL
- approved suppliers list
- ASLAB
- Atomic Safety and Licensing Appeal Board (NRC)
- ASLAP
- Atomic Safety and Licensing Appeal Panel (NRC)
- ASLB
- Atomic Safety and Licensing Board (NRC)
- ASLBP
- Atomic Safety and Licensing Board Panel (NRC)
- ASM
- American Society for Metals (now ASM International)
- ASME
- American Society of Mechanical Engineers
- ASME
- CodeAmerican Society of Mechanical Engineers Boiler and Pressure
Vessel Code
- ASNT
- American Society for Nondestructive Testing
- Australian School of Nuclear Technology
- ASP
- accident sequence precursor
- administrative site procedure
- auxiliary shutdown panel
- ASPEA
- Association Suisse pour l'Energie Atomique (Switzerland)
- ASQC
- American Society for Quality Control
- ASR
- automatic send and receive
- ASS
- auxiliary steam system
- ASSE
- American Society of Safety Engineers
- ASSP
- acoustics, speech, and signal processing
- ASTM
- American Society for Testing and Materials
- ASTPO
- Accident Source Term Program Office
- ASTR
- Aerospace Systems Test Reactor
- ASW
- auxiliary saltwater
- auxiliary service water
- AT
- acceptable test
- acceptance tag
- acceptance test
- ATC
- adiabatic toroidal compressor
- ATEL
- Aare Tessin Aktiengesellschaft für Elektrizität (Switzerland)
- ATEN
- Association Technique de l'Energie Nucléaire (France)
- Association Technique pour la Production et l'Utilisation de
l'Energie Nucléaire (France)
- ATF
- acceptance test facility
- Alcohol, Tobacco and Firearms, Bureau of (U.S. Department of
Treasury)
- ATH
- artificial time history
- ATOG
- abnormal transient operational guideline
- anticipated transient operating guideline
- ATP
- acceptance test plan
- acceptance test procedure
- A&TP
- assembly and test pit
- ATR
- advanced test reactor
- ATRCE
- advanced test reactor critical experiment
- ATS
- agency training system
- Arkwright Technical Services, Inc.
- Atomtekniska Sällskapet i Finland (Finland)
- ATSR
- Argonne Thermal Source Reactor
- ATT
- aerosol transport test
- automatic turbine tester
- ATTU
- ATWS (anticipated transient without scram) transmitter trip unit
- ATU
- analog trip unit
- ATWS
- anticipated transient without scram
- ATWS-RPT
- anticipated transient without scram--recirculation pump trip
- ATWT
- anticipated transient without trip
- AU
- authorized user
- AUDIT
- automatic unattended detection inspection transmitter
- AUEA
- auxiliary utility equipment area
- AUO
- auxiliary unit operator
- AUT
- automated ultrasonic test
- AUTODIN
- automated digital network
- AUTOS
- agency upgrade of technology for office systems
- AUXI-ATOME
- Société Auxiliaire pour l'Energie Atomique (France)
- AVB
- antivibration bar
- AVIS
- atomic vapor isotope separation
- AVLIS
- atomic vapor laser isotope separation
- AVMS
- annulus vacuum maintenance system
- AVR
- Arbeitsgemeinschaft Versuchsreaktor, G.m.b.H. (Germany)
- automatic volume recognition
- AVSS
- automated vendor selection system
- AVT
- all-volatile treatment
- AVV
- atmospheric vent valve
- AW
- acid waste
- AWCC
- active well coincidence counter
- AWG
- American wire gauge
- AWNS
- ABB Westinghouse Nuclear Services
- AWP
- automatic withdrawal prohibit
- AWRE
- Atomic Weapons Research Establishment (United Kingdom)
- AWS
- American Welding Society
- AWSF
- alpha waste storage facility
- AWWA
- American Water Works Association
- AZPS
- Arizona Public Service Co.
B
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]
- BA
- biological assessment
- B/A
- budget authority
- BAA
- broad agency announcement
- BAC
- blood alcohol content
- boric acid concentrator
- BACT
- best available control technology
- BAF
- bioaccumulation factor
- bottom of active fuel
- BAM
- Bundesanstalt für Materialforschung und -prüfung (Germany)
- BAMT
- boric acid mix tank
- BAP
- branch arm piping
- BAPE
- branch arm piping enclosure
- BAPL
- Bettis Atomic Power Laboratory
- BAPS
- branch arm piping shielding
- BARC
- Bhabha Atomic Research Centre (India)
- BART
- butterfly analysis and review test
- BAST
- boric acid storage tank
- BAT
- backup auxiliary transformer
- best available technology
- boric acid tank
- boric acid transfer
- BATAN
- Badan Tenaga Atom Nasional (Indonesia)
- BATEA
- best available technology economically available
- BATF
- Bureau of Alcohol, Tobacco and Firearms (U.S. Department of
Treasury)
- BAWTR
- Babcock & Wilcox Nuclear Development Center Test Reactor
- BBC
- Brown Boveri et Cie (Switzerland)
- BBR
- Babcock-Brown Boveri Reaktor, G.m.b.H. (Germany)
- BBRR
- Brookhaven Beam Research Reactor
- BBS
- battery backup system
- bulletin board system
- BBV
- Bayrische Biologische Versuchsanstalt (Germany)
- BC
- benign contamination
- branch chief
- BCD
- Battelle Columbus Division
- binary coded decimal
- BCHFT
- beyond critical heat flux test
- BCL
- Battelle Columbus Laboratories
- Bechtel client letter
- BCMS
- boron concentration measurement system
- BCS
- Boeing Computer Services
- BCT
- best conventional technology
- BD
- blowdown
- BDAT
- best demonstrated available technology
- BDBA
- beyond-design-basis accident
- BDBE
- beyond-design-basis event
- BDE
- beyond demonstrable effect
- BD/ECC
- blowdown/emergency core cooling
- BDHT
- blowdown heat transfer
- BDPS
- boric dilution protection system
- BDT
- best demonstrated technology
- BE
- best estimate
- binding energy
- bounding event
- BEA
- Bureau of Economic Analysis
- BEAR
- Biological Effects of Atomic Radiation, Committee on the
- BEC
- beginning-of-equilibrium cycle
- BECO
- Boston Edison Co.
- BEEN
- Bureau d'Etude de l'Energie Nucléaire (Belgium)
- BEF
- best-estimate flow
- BEIR
- Biological Effects of Ionizing Radiation, Committee on the
- BEN
- Bureau d'Etudes Nucléaires, S.A. (Belgium)
- BEPO
- British Experimental Pile Operation
- BFN
- Browns Ferry Nuclear Power Plant
- BFNP
- Browns Ferry Nuclear Power Plant
- BFNPP
- Browns Ferry Nuclear Performance Plan
- Browns Ferry Nuclear Power Plant
- BFO
- best and final offer
- BFY
- budget fiscal year
- BG&E
- Baltimore Gas & Electric Co.
- BGL
- below ground level
- BGRR
- Brookhaven Graphite Research Reactor
- BGV
- below ground vault
- BH
- Blue Hills Station
- BHEC
- Bangor Hydro-Electric Co.
- BHEP
- basic human error probability
- BHL
- bottom of heated length
- BHP
- biological hazard potential
- BHS
- Blue Hills Station
- BHSP
- basic human success probability
- BI
- background information
- BIA
- buyers information advisory
- BIF
- basic inflow
- BIFEN
- Banque Internationale pour le Financement de l'Energie Nucléaire
(France)
- BIOMASS
- Biosphere Modeling and Assessments (project)
- BIOMOVS
- IIBiosphere Model Validation Study, Phase II
- BIOS
- basic input-output system
- biological investigation of space
- BIR
- boron injection recirculation
- BIST
- boron injection surge tank
- BIT
- boron injection tank
- BKW
- Bernische Kraftwerke, A.G. (Switzerland)
- BLBE
- beyond-licensing-basis event
- BLIS
- baffle/liner interface seal
- BLM
- Bureau of Land Management
- BLP
- basket loading pool
- BLTC
- bottom loading transfer cask
- BM
- bill of material
- boron measurement
- BMEP
- brake mean effective power
- brake mean effective pressure
- BMEWS
- ballistic missile early warning system
- BMFT
- Bundesministerium für Forschung und Technologie (Germany)
- BMI
- Battelle Memorial Institute
- BML
- bidders mailing list
- bulk material length
- BMR
- Bureau of Mineral Resources (Australia)
- BMRR
- Brookhaven Medical Research Reactor
- BMS
- boron management system
- boron measurement system
- BMT
- basement melt-through
- BN
- Belgonucléaire S. A. (Belgium)
- board notification
- Buestra Neutron (Soviet-designed fast-neutron reactor)
- BNC
- Berkeley Nucleonics Corporation
- BNDC
- British Nuclear Design & Construction Ltd.
- BNEC
- British Nuclear Energy Conference
- BNES
- British Nuclear Energy Society
- BNF
- British Nuclear Forum
- BNFL
- British Nuclear Fuels, Limited
- BNFP
- Barnwell Nuclear Fuel Plant
- BNI
- Bechtel National, Inc.
- BNL
- Brookhaven National Laboratory
- BNP
- Bellefonte Nuclear Plant
- BNWL
- Battelle Northwest Laboratory
- BO
- biological opinion
- B/O
- budget overlay
- B&O
- bulletin and order
- BOA
- basic order agreement
- blanket order agreement
- BOC
- beginning of cycle
- Bevitron orbit code
- bottom of conduit
- budget object classification
- BOD
- biochemical oxygen demand
- biological oxygen demand
- BOEC
- beginning-of-equilibrium cycle
- BOG
- burner off-gas
- BOL
- beginning of life
- BONUS
- boiling nuclear superheat reactor
- BONUS-CX
- boiling nuclear superheat critical experiment
- BOP
- balance of plant
- BOPSSAR
- balance-of-plant standard safety analysis report
- BORAX
- boiling-water reactor experiment
- BORE
- beryllium oxide reactor experiment (formerly EBOR)
- B&OTF
- bulletins and orders task force
- B/P
- blueprint
- BPA
- blanket purchase agreement
- Bonneville Power Administration
- BPC
- Bechtel Power Corporation
- BPF
- blueprint file
- BPFM
- bypass flow module
- BPHA
- benzoylphenylhydroxylamine
- BPID
- book physical inventory difference
- BPN
- breakdown pulse noise
- BPNL
- Battelle Pacific Northwest Laboratory
- BPR
- beryllium physics reactor
- burnable poison rod
- business process redesign
- business process reengineering
- BPRA
- burnable poison rod assembly
- BPV
- boiler and pressure vessel
- bypass valve
- B&PV
- boiler and pressure vessel
- BPVC
- Boiler and Pressure Vessel Committee
- BPWS
- blanked position withdrawal sequence
- Bq
- becquerel
- BR
- breeder reactor
- breeding ratio
- B&R
- Brown and Root, Inc.
- budget and reporting
- Burns and Roe, Inc.
- BRC
- below regulatory concern
- Breeder Reactor Corporation
- Bureau of Radiation Control (State of Texas)
- BREDAT
- Breda Termomeccanica, SpA (Italy)
- BREN
- Bare Reactor Experiment Nevada
- BREVATOME
- Société Française pour la Gestion des Brevets d'Application Nucléaire
(France)
- BRG
- budget review group
- BRH
- Bureau of Radiological Health
- BRP
- Bureau of Radiation Protection
- BRPNP
- Big Rock Point Nuclear Plant
- BRR
- Battelle Research Reactor
- Brookhaven Research Reactor
- BRS
- Bibliographic Retrieval System
- boron recycle system
- BRWM
- Board on Radioactive Waste Management
- BS
- Braidwood Station
- Byron Station
- B/S
- bistable
- BSEP
- Brunswick Steam Electric Plant
- BSF
- bulk shielding facility
- BSI
- British Standards Institution
- BSL
- Bignier Schmid-Laurent (France)
- BSR
- Board of Standards Review (American National Standards Institute)
- bulk shielding reactor
- BSS
- basic safety standard
- BST
- bleed storage tank
- blowdown suppression tank
- boron storage tank
- BT
- boiling transition
- broadcast technology
- BTFA
- benzoyltrifluoroacetone
- BTP
- backfit test program
- branch technical position
- BTR
- boron thermal regeneration
- BTRS
- boron thermal regeneration system
- BTS
- Brazilian thorium sludge
- BUSS
- backup scram system
- B&V
- Black & Veatch
- BVFA
- Bundesversuchs- und Forschungsanstalt Arsenal (Austria)
- BVPS
- Beaver Valley Power Station
- B&W
- Babcock & Wilcox Co. (now Framatome)
- B&WC
- Babcock & Wilcox Canada
- BWC
- Bingham-Willamette Co.
- BWF
- building wake factor
- B&WFC
- Babcock & Wilcox Fuel Co.
- BWIP
- basalt waste isolation program
- B&WNT
- Babcock & Wilcox Nuclear Technologies
- B&WOG
- Babcock & Wilcox Owners Group
- BWR
- boiling-water reactor
- BWROG
- Boiling Water Reactor Owners Group
- BWRVIP
- Boiling Water Reactor Vessel and Internals Project
- B&WSSAR
- Babcock & Wilcox Standard Safety Analysis Report
- BWST
- borated water storage tank
C
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]
- CA
- charge amplifier
- construction authorization
- contract authorization
- critical assembly
- C/A
- corrective action
- CAA
- Clean Air Act
- CAC
- carrier access code
- containment atmosphere control
- CACS
- containment air cooling system
- core auxiliary cooling system
- CACW
- core auxiliary cooling water
- CACWS
- core auxiliary cooling water system
- CAD
- computer-aided design
- construction aid document
- containment atmosphere dilution
- CAES
- compressed air energy storage
- CAF
- chemical analysis facility
- CAFEE
- critical assembly fuel element exchange
- CAFTA
- cutset and fault tree analysis
- CAGT
- collaborative advanced gas turbine
- CAHE
- core auxiliary heat exchanger
- CAI
- construction action item
- computer-assisted instruction
- CAIT
- corrective action investigation team
- CAL
- confirmatory action letter
- corrective action letter
- CALUTRON
- California University Cyclotron
- CAM
- constant air monitor
- containment atmospheric monitoring
- continuous air monitor
- CAMEL
- component and material evaluation loop
- CAMEN
- Centro Autònomo Militari Energia Nucleare (Italy)
- CAN
- Citizen's Awareness Network
- CANDU
- Canadian Deuterium-Natural Uranium Reactor
- Canadian Deuterium Uranium Reactor
- Canadian Natural-Uranium, Heavy-Water-Moderated and -Cooled Power
Reactor
- CANE
- Connecticut Aircraft Nuclear Experiment
- CAOC
- constant axial offset control
- CAP
- codes and paging
- continuous audit program
- corrective action plan
- corrective action program
- CAPCG
- Central Area Power Coordination Group
- CAPES
- containment atmosphere purge exhaust system
- CAPS
- cell atmosphere processing system
- construction advanced planning and sequencing
- CAQ
- condition adverse to quality
- CAQR
- condition adverse to quality report
- CAR
- condenser air removal
- configuration acceptance review
- containment air recirculation
- control advisory release
- corrective action report
- CARA
- Compagnie d'Applications et de Recherches Atomiques (France)
- CARATOM
- Compagnie d'Applications et de Recherches Atomiques (France)
- CARC
- containment air recirculation and cooling
- CARS
- condenser air removal system
- containment atmosphere release system
- containment atmosphere recirculation system
- CAS
- central alarm station
- central alarm system
- chemical addition system
- circuits and systems
- compressed air system
- CASE
- Citizens Action for Safe Environment
- Citizens Association for Sound Energy
- consolidated aerospace supplier evaluation
- coordinating agency for supplier evaluation
- CAT
- chemical addition tank
- computerized axial tomography
- conditionally accepted tag
- construction appraisal team
- crack arrest technology
- crack arrest temperature
- crack arrest test
- CATD
- corrective action tracking document
- CAV
- crack arrest verification
- CAVALIER
- Cooperatively Assembled Virginia Low-Intensity Educational Reactor
- CB
- containment building
- control building
- CBAST
- concentrated boric acid storage tank
- CBD
- Commerce Business Daily
- CBDT
- cause-based decision tree (method)
- CBE
- Citizens for a Better Environment
- CBECS
- control building environmental control system
- CBI
- Chesapeake Bay Institute
- CBI Industries (formerly Chicago Bridge and Iron Co.)
- CB&I
- Chicago Bridge and Iron Co. (later CBI Industries)
- CBL
- Chesapeake Bay Laboratory
- Chesapeake Biological Laboratory
- CBLA
- cost-beneficial licensing action
- CBM
- circuit breaker manufacturer
- CBP
- condensate booster pump
- CBPC
- Corn Belt Power Cooperative
- CBPT
- closed-loop in-reactor assembly backup plug tool
- CBR
- commercial breeder reactor
- CBSR
- coupled breeding superheating reactor
- CBV
- containment building ventilation
- CC
- centrifugal charging
- coarse control
- component check
- component cooling
- CCAS
- containment cooling actuation signal
- CCB
- change control board
- chemical cleaning building
- CCCS
- core components cleaning system
- core components conditioning station
- core components conditioning system
- CCD
- coarse control damper
- counter-current digestion
- CCDF
- complementary cumulative distribution function
- CCDP
- conditional core damage probability
- CCF
- common-cause failure
- CCFA
- common-cause failure analysis/analyses
- CCFL
- counter-current flow limitation
- CCFP
- conditional containment failure probability
- CCGC
- containment combustible gas control
- CCHEN
- Comisión Chilena de Energía Nuclear (Chile)
- CCI
- core concrete interaction
- CCM
- SulzerCompagnie de Construction Mécanique Sulzer (France)
- CCN
- contract change notice
- CCNB
- Concerned Citizens for the Nuclear Breeder
- CCNPP
- Calvert Cliffs Nuclear Power Plant
- CCP
- centrifugal charging pump
- chemical control procedure
- core component pot
- CCRC
- core component receiving container
- CCRS
- computerized cable routing system
- CCS
- Carroll County Station
- commitment control system
- component cooling system
- condensate cleanup system
- condensate cooling system
- containment cooling system
- CCSS
- centrifugally cast stainless steel
- CCSW
- component cooling service water
- CCTF
- cylindrical core test facility
- CCTL
- core component test loop
- CCTV
- closed-circuit television
- CCU
- containment cooling unit
- CCW
- closed cooling water
- component cooling water
- compound cooling water
- condenser circulating water
- condenser cooling water
- counterclockwise
- CCWS
- closed cooling water system
- component cooling water system
- CD
- civil defense
- C/D
- cooldown
- CDA
- containment depressurization actuation
- core disruptive accident
- CDBA
- containment design-basis accident
- CDC
- Center for Disease Control
- computer design code
- Control Data Corp.
- CDE
- condensate demineralization effluent
- CDF
- core damage frequency
- cumulative damage function
- CDM
- central data management
- CDN
- corporate data network
- CDP
- cask decontamination pit
- CDPA
- Civil Defense Preparedness Agency
- CDPr
- core damage probability
- CDR
- conceptual design requirement
- CDRG
- Catastrophic Disaster Response Group
- CD-ROM
- compact disk/read-only memory
- CDS
- cask decontamination station
- component disassembly station
- computer data screening
- conceptual design study
- condensate demineralization subsystem
- current disposal site
- CDV
- capacitance discharge vaporization
- CE
- Combustion Engineering, Inc.
- Commonwealth Edison Co.
- conductivity element
- Consumer Electronics
- Corps of Engineers, U.S. Army
- C/E
- calculation/experiment
- C-E
- Combustion Engineering, Inc.
- CEA
- Cambridge Electron Accelerator
- Chesapeake Energy Alliance
- Commissariat à l'Energie Atomique (France)
- control element assembly
- Council of Economic Advisors
- CEAC
- control element assembly calculator
- CEADS
- control element assembly drive system
- CEAN
- Centre d'Etudes pour les Applications de l'Energie Nucléaire
(Belgium)
- CEBELCOR
- Centre Belge d'Etude de la Corrosion (Belgium)
- CEC
- Citizens Energy Council
- Claiborne Enrichment Center
- Commission of the European Communities
- CECO
- Commonwealth Edison Co.
- cost estimate change order
- CECS
- containment environmental control system
- CEDE
- committed effective dose equivalent
- CEDM
- control element drive mechanism
- CEDMCS
- control element drive mechanism control system
- CEDS
- control element drive system
- CEEA
- Comisión Ecuatoriana de Energia Atómica (Ecuador)
- Communauté Européenne de l'Energie Atomique
- CEEN
- Centre d'Etude de l'Energie Nucléaire (Belgium)
- CEER
- Center for Energy and Environment Research (Puerto Rico)
- CEFILAC
- Compagnie du Filage des Métaux et des Joint Curty (France)
- CEG
- Contractor Engineering Group
- CEGB
- Central Electricity Generating Board (United Kingdom)
- CEHA
- contact equipment handling area
- CEIC
- Cleveland Electric Illuminating Co.
- CEICO
- Cleveland Electric Illuminating Co.
- CEL
- carbon equilibrium loop
- coating exempt log
- CEM
- Compagnie Electro-Mécanique (France)
- CEN
- Centre d'Etudes Nucléaires (France)
- Centre d'Etude de l'Energie Nucléaire (Belgium)
- CENC
- Centre d'Etudes Nucléaires de Cadarache (France)
- CENFAR
- Centre d'Etudes Nucléaires de Fontenay-aux-Roses (France)
- CENG
- Centre d'Etudes Nucléaires de Grenoble (France)
- CENS
- Centre d'Etudes Nucléaires de Saclay (France)
- CENUSA
- Centrales Nucleares, S.A. (Spain)
- CENY
- Consolidated Edison Co. of New York
- CEOG
- Combustion Engineering Owners Group
- CEPC
- Central Electric Power Cooperative, Inc.
- CEQ
- Council on Environmental Quality
- CER
- complete engineering release
- condition evaluation report
- critical experiment reactor
- CERC
- Coastal Engineering Research Center, U.S. Army
- CERCA
- Centre de Recherches pour Combustibles Atomiques (France)
- Compagnie pour l'Etude et la Réalisation de Combustibles Atomiques
(France)
- CERCLA
- Comprehensive Environmental Response, Compensation, and Liability
Act
- CERES
- Coalition for Environmentally Responsible Economies
- CERL
- Construction Engineering Research Laboratory
- CERMET
- ceramic and metal (fuel)
- CERT
- candidate evaluation, certification, and selection record
- constant extension rate test(ing)
- Council of Energy Resources Tribes
- CES
- critical experiment station
- CESNEF
- Centro di Studi Nucleari Enrico Fermi (Italy)
- CESR
- colliding electron-beam storage ring
- CESSAR
- Combustion Engineering Standard Safety Analysis Report
- CET
- containment event tree
- core exit thermocouple
- critical experiment tank
- CETR
- Consolidated Edison Thorium Reactor
- CETS
- control element test stand
- CEVAR
- consumable-electrode vacuum-arc remelt
- CF
- column feed
- confinement factor
- continuous flow
- core flooding
- correction factor
- CFAR
- component failure analysis report
- CFB
- C.F. Braun and Co.
- CFC
- Constructions Férroviaires du Centre, S.A. (Belgium)
- CFCCS
- condensate and feedwater chemistry control system
- CFCU
- containment fan cooler unit
- CFD
- cell floor drain
- CFDT
- Confédération Française Démocratique du Travail (France)
- CFE
- clandestine fission explosive
- Comisión Federal de Electricidad (Mexico)
- CFFTR
- Canadian Fusion Fuel Technology Project
- CFI
- core flooding interlock
- CFM
- containment failure mode
- CFO
- Chief Financial Officer
- CFR
- Code of Federal Regulations
- CFR
- commercial fast reactor
- condensate filter demineralizer
- CFRE
- circulating-fuel reactor experiment
- CFRMF
- coupled fast reactor measurement facility
- CFS
- cavity fission source
- condensate and feedwater system
- core flood system
- core former structure
- CFT
- core flood tank
- core flooding tank
- CFTC
- cooler flusher tank cell
- CFTE
- cooler flusher tank equipment
- CFTL
- component flow test loop
- CFU
- cumulative fatigue usage
- CFUR
- Citizens for Fair Utility Regulation
- CFW
- condensate and feedwater
- CFWS
- condensate and feedwater system
- CGCS
- combustion gas control system
- CGE
- Canadian General Electric
- CGEC
- Cincinnati Gas and Electric Co.
- CGEL
- cover gas evaluation loop
- CGI
- commercial-grade item
- CGMS
- cover gas monitoring subsystem
- cGy
- centigray
- CHAP
- composite HTGR (high-temperature gas reactor) analysis program
- CHAT
- CLIRA (closed-loop in-reactor assembly) holddown assembly tool
- CHCF
- component handling and cleaning facility
- CHEP
- conditional human error probability
- CHF
- critical heat flux
- CHFR
- critical heat flux ratio
- CHGE
- Central Hudson Gas and Electric Corp.
- CHLA
- candidate high-level action
- CHLW
- commercial high-level waste
- CHMT
- components, hybrids, and manufacturing technology
- CHN
- construction hold notice
- CHP
- certified health physicist
- C&HP
- chemistry and health physics
- CHR
- cooling water/hot water return
- CHRS
- containment heat removal system
- CHU
- centigrade heat unit
- CHWR
- cooling water/hot water return
- C/HWR
- cooling water/hot water return
- C-HWR
- cooling water/hot water return
- CI
- center island
- chemical injection
- containment integrity
- containment isolation
- C&I
- control and instrumentation
- Ci
- curie
- CIA
- Central Intelligence Agency
- containment isolation A
- CIAS
- containment isolation actuation signal
- CIB
- containment isolation B
- CIC
- carrier identification code
- CICA
- Competition in Contracting Act
- CICAF
- Compagnie Industrielle des Combustibles Atomiques Frittes (France)
- CID
- component identification
- CIEMAT
- Centro de Investigaciones Energeticas, Medio Ambientales (Spain)
- CIIP
- condenser inservice inspection program
- CILRT
- containment integrated leak rate test
- CIMI
- Compagnia Italiana Montaggi Industriali, SpA (Italy)
- CINDA
- computer index of neutron data
- CIO
- Chief Information Officer
- CIP
- containment improvement program
- C/IP
- construction/inspection procedure
- CIPC
- Central Iowa Power Cooperative
- CIPP
- customized inspection program pilot
- customized inspection program process
- customized inspection planning process (now IPAP)
- CIR
- Canada-India Reactor (India)
- CIREA
- Commission Interministérielle des Radioéléments Artificiels
(France)
- CIRGA
- Critical Isotope Reactor, General Atomic Co.
- CIRRPC
- Committee on Interagency Radiation Research and Policy Coordination
- CIRS
- containment iodine removal system
- CIS
- chemical injection system
- containment isolation signal
- containment isolation system
- contract information sheet
- CISDEN
- Centro Italiano di Studi di Diritto dell'Energia Nucleare (Italy)
- CISE
- Centro Informazioni Studi Esperienze, SpA (Italy)
- CISF
- centralized interim storage facility
- CISIP
- condenser inservice inspection program
- CISSCO
- Comprehensive Information Systems Support Consolidation
- CIT
- conductivity indicator transmitter
- corporate investigation team
- critical incident technique
- CIV
- center island vessel
- combined intercept valve
- combined intermediate valve
- containment isolation valve
- CIWA
- condition identification work authorization
- CL
- closed loop
- containment leakage
- CLA
- cold-leg accumulator
- CLAA
- Centre Lyonnais d'Applications Atomiques (France)
- CLB
- current licensing basis
- CLC
- closed-loop condensate
- CLCGM
- closed-loop cover gas monitor
- CLCIS
- closed-loop control and instrumentation system
- CLCS
- consequence limiting control system
- CLCV
- cold-leg check valve
- CLCW
- closed-loop cooling water
- CLEI
- Cleveland Electric Illuminating Co.
- CLEM
- closed-loop ex-vessel machine
- CLEMT
- closed-loop ex-vessel machine transporter
- CLIRA
- closed-loop in-reactor assembly
- CLIV
- cold-leg isolation valve
- CLJA
- closed-loop jumper assembly
- CLLRW
- commercial low-level radioactive waste
- CLOF
- complete loss of feedwater
- CLOFA
- complete loss-of-fluid accident
- CLOHS
- complex loss-of-heat sink
- CLP
- Connecticut Light and Power Co.
- CLR
- core lateral restraint
- CLRWS
- clean liquid radioactive waste system
- CLS
- cask loading station
- closed-loop system
- consequence limiting system
- CLSD
- Central Laboratories Services Dept. (TVA)
- CLSMDA
- closed-loop-system meltdown accident
- CLWR
- commercial light-water reactor
- CM
- coarse mixing
- condition monitoring
- configuration management
- coolant mixing
- core melt
- corrective maintenance
- CMA
- classified mail address
- CMAA
- Crane Manufacturers Association of America
- CMC
- component modification card
- core monitoring computer
- CMCI
- core-melt/coolant interaction
- CMEA
- Council for Mutual Economic Assistance (U.S.S.R.)
- CMEP
- Critical Mass Energy Project
- CMF
- central maintenance facility
- common-mode failure
- core-melt frequency
- CMFA
- common-mode failure analysis/analyses
- CMFLPD
- core maximum fraction of limiting power density
- CMI
- care and maintenance instruction
- CML
- Critical Mass Laboratory
- CMM
- core mechanical mockup
- CMMF
- component maintenance and mockup facility
- CMOD
- crack mouth opening displacement
- CMP
- CLEM (closed-loop ex-vessel machine) maintenance pit
- coastal management program
- condition monitoring program
- configuration management plan
- controlled materials production
- CMPC
- Central Maine Power Co.
- CMRG
- Core Melt Review Group
- CMT
- core makeup tank
- CMTR
- certified material test report
- certified mill test report
- CNA
- Canadian Nuclear Association
- Centrale Nucléaire des Ardennes (Belgium)
- CNB
- Centrale Nucléaire Belge (Belgium)
- CNC
- condensation nuclei counter
- CNEA
- Comisión Nacional de Energía Atómica (Argentina)
- CNEN
- Comisión Nacional de Energía Nuclear (Mexico)
- Comissão Nacional de Energía Nuclear (Brazil)
- Comitato Nazionale per l'Energia Nucleare (Italy)
- Conseil National de l'Energie Nucléaire (Luxembourg)
- CNET
- Center for Nuclear Engineering and Technology
- CNEUPEN
- Commission Nationale pour l'Etude de l'Utilisation Pacifique de
l'Energie Nucléaire (Belgium)
- CNFP
- commercial nuclear fuel plant
- CNI
- Consolidated National Intervenors
- CNN
- Cable Network News
- CNNA
- China National Nuclear Corporation
- CNO
- Chief Nuclear Officer
- CNPP
- corporate nuclear performance plan
- CNR
- Committee for Nuclear Responsibility
- CNRA
- Committee on Nuclear Regulatory Activities (of the OECD-NEA)
- CNRAG
- corporate nuclear review and audit group
- company nuclear review and audit group
- CNRM
- Centre National de Recherches Métallurgiques (Belgium)
- CNRN
- Comitato Nazionale per le Ricerche Nucleare (Italy)
- CNRS
- Centre National de la Recherche Scientifique (France)
- CNS
- Catawba Nuclear Station
- Cherokee Nuclear Station
- Cooper Nuclear Station
- corporate nuclear safety
- CNSI
- Chem-Nuclear Systems, Inc.
- CNSNS
- Comisión Nacional de Seguridad Nuclear y Salvaguardias (Mexico)
- CNSR
- combination neutron source rod
- CNWRA
- Center for Nuclear Waste Regulatory Analyses
- CO
- change order
- check open
- chief operator
- confirmatory order
- contracting officer
- COB
- close of business
- COBOL
- common business-oriented language
- COBRA
- Consolidated Omnibus Budget Reconciliation Act
- coolant boiling and in-rod array
- COC
- certificate of compliance
- certificate of conformance
- Cleveland open cup (method)
- COCA
- consent order and compliance agreement
- COCORP
- Consortium of Continental Reflection Profiling
- COD
- chemical oxygen demand
- crack opening displacement
- COE
- Corps of Engineers, U.S. Army
- COFINATOME
- Compagnie de Financement de l'Industrie Atomique (France)
- COG
- cell off-gas
- condenser off-gas
- continuity of government
- COGAP
- combustion gas analyzer program
- COI
- conflict of interest
- COL
- combined operating license
- construction/operating license
- COLR
- core operating limit report
- COLSS
- core operating limit supervisory system
- core operating limit support system
- COM
- communications
- computer output on microfiche
- computer output on microfilm
- COMET
- computer-operated management evaluation technique
- COMRADEX
- containment and meteorology for radiation exposure
- COMSEC
- communications security
- CONAGT
- Committee on Nuclear Air and Gas Treatment (ASME)
- CONS
- Consolidation, Office of (NRC)
- COOP
- continuity of operations plan
- COPPS
- committee on power plant siting
- COPS
- containment overpressure protection systems
- CORAPRO
- Contrôle-Radioprotection (Belgium)
- CORAR
- Council on Radionuclides and Radiopharmaceuticals
- COREN
- Combustibili per Reattori Nucleari, SpA (Italy)
- CORS
- catalytic oxygen removal system
- COS
- change of station
- COTS
- commercial off-the-shelf
- COV
- center of vortex
- CP
- Callaway Plant
- change proposal
- charging pump
- Chicago Pile
- civil penalty
- cold pipe
- column product
- Comanche Peak
- Commission paper
- construction permit
- construction procedure
- containment purge
- coolant pump
- critical power
- C/P
- current/pneumatic
- CP-5
- Chicago Pile #5
- CPA
- Cooperative Power Association
- CPC
- Consumers Power Co.
- contact process cell
- controlled-potential coulometer
- core protection calculator
- core protection computer
- CPCo
- Consumers Power Company
- CPCSF
- construction permit containment support fixture
- CPD
- condensate pump discharge
- CPDD
- conceptual project design description
- CPDO
- containment performance design objective
- CPDS
- condensate polishing demineralizer system
- CPE
- contractor performance evaluation
- CPER
- construction permit environmental report
- CPFF
- cost plus fixed fee
- CPI
- center pressure index
- containment performance improvement
- CPIC
- Capital Planning and Investment Control
- CPIS
- containment purge isolation signal
- CP&L
- Carolina Power & Light Co.
- cpm
- count per minute
- CPM
- critical path method
- CPP
- Center for Plutonium Production
- coil power programmer
- containment pre-entry purge
- containment protection professional
- CPPMU
- containment pre-entry purge makeup
- CPPR
- construction permit for a power reactor
- CPR
- critical power ratio
- CPRR
- construction permit for a research reactor
- CPRRG
- Comanche Peak Report Review Group
- CPRT
- Comanche Peak Response Team
- CPRW
- condensate polishing regeneration waste
- CPRWCT
- condensate polishing regeneration waste collection tank
- CPS
- canister positioning system
- cathodic protection system
- Clinton Power Station
- condensate polishing system
- containment purge system
- conversion program system
- core and plant system
- cps
- count per second
- CPSC
- Consumer Products Safety Commission
- CPSCI
- central personnel security clearance index
- CPSES
- Comanche Peak Steam Electrical Station
- CPU
- central processing unit
- CPVC
- chlorinated polyvinyl chloride
- CPWF
- cementitious pelletized waste form
- CQ
- Congressional Quarterly
- CQAA
- corporate quality assurance audit
- CQE
- cognizant quality engineer
- critical quality element
- CR
- Chicago Reactor
- civil rights
- condition report
- conditional release
- containment rupture
- contractor report
- control rod
- control room
- CR
- Congressional Record
- CRA
- control rod assembly
- CRAC
- calculation of reactor accident consequences
- consequences of reactor accident code
- CRACS
- control room air conditioning system
- CRATS
- control room air temperature system
- CRAVS
- control room area ventilation system
- CRB
- control rod blade
- cost review board
- CRBR
- Clinch River Breeder Reactor
- controlled-recirculation boiling-water reactor
- CRBRP
- Clinch River Breeder Reactor Plant
- Clinch River Breeder Reactor Project
- CRC
- critical reactor component
- CRCPD
- Conference of Radiation Control Program Directors
- CRCTA
- composite reactor components test activity
- CRD
- control rod drive
- control rod driveline
- CRDA
- control rod drop accident
- CRDCS
- control rod drive control system
- CRDD
- control rod disconnect driveline
- CRDHS
- control rod drive hydraulic system
- CRDM
- control rod drive mechanism
- CRDMS
- control rod drive mechanism shroud
- CRDR/A
- control room design review/audit
- CRDS
- control rod drive system
- CRDVF
- control rod drive ventilating fan
- CREATE
- collective radiation exposure (NRC performance indicator)
- control room envelope
- controlled residual element
- CREACS
- control room emergency air cleanup system
- CREATCS
- control room emergency air temperature control system
- CREDO
- centralized reliability data organization
- CREFAS
- control room emergency fresh air system
- CREFS
- control room emergency filtration system
- CREHVACS
- control room emergency heating, ventilation, and air conditioning
system
- CREST
- Committee on Reactor Safety and Technology
- CREV
- control room emergency ventilation
- CREVS
- control room emergency ventilation system
- CRF
- capacity reduction factor
- correspondence routing form
- CRFAS
- control room fresh air system
- CRG
- Center Review Group
- CRGR
- Committee To Review Generic Requirements (NRC)
- CRGT
- control rod guide tube
- CRI
- Centre de Recherches et d'Irradiations (France)
- control room indicator
- control room isolation
- criterion-referenced instruction
- CRIS
- control room isolation signal
- CRM
- Centre de Recherches Métallurgiques (Belgium)
- Centrum voor Research in de Metallurgie (Belgium)
- certified reference material
- chemical remnant magnetization
- core restraint mechanism
- count rate meter
- CRNGP
- Crystal River Nuclear Generating Plant
- CRNL
- Chalk River Nuclear Laboratories
- CRO
- control room operator
- CRPI
- control rod position indication
- CRS
- conductivity recording switch
- Congressional Research Service
- containment recirculation spray
- CRSS
- containment recirculation spray system
- CRT
- cathode-ray tube
- collet retaining tube
- CRTF
- core restraint test facility
- CRU
- combined rotating unit
- CRUD
- Chalk River unidentified deposit
- CRVICS
- containment and reactor vessel isolation control system
- CRW
- clean radwaste
- CRWSS
- condensate and refueling water storage system
- CS
- carbon steel
- communications system
- component support
- containment safety
- containment spray
- contract specialist
- control system
- core spray
- current status
- CSA
- chemical storage area
- core special assembly
- core structure accident
- CSAS
- containment spray actuating signal
- containment spray actuating system
- containment spray actuation signal
- CSAU
- code, scaling, applicability, and uncertainty (methodology)
- CSB
- core support barrel
- CSC
- Computer Sciences Corporation
- containment spray cooling
- core support cylinder
- CSCC
- caustic stress-corrosion cracking
- CSCS
- core standby cooling system
- CSD
- cold shutdown
- constant speed drive
- CSDD
- conceptual system design description
- CSDF
- core segment development facility
- CSE
- components and structures engineering
- containment steam explosion
- containment systems experiment
- CSF
- central service facility
- condensate storage facility
- containment support fixture
- Coulter Steel and Forge
- critical safety factor
- critical safety function
- CSHX
- containment spray heat exchange
- CSIP
- containment safety initiatives program
- CSIS
- containment spray injection system
- CSN
- Consejo de Seguridad Nuclear (Spain)
- CSNE
- Citizens for Safe Nuclear Energy
- CSNI
- Committee on the Safety of Nuclear Installations (NEA)
- CSOEC
- Columbus and Southern Ohio Electric Co.
- CSP
- Coalition for Safe Power
- conditional success probability
- containment spray pump
- core spray pump
- CSPT
- core support performance test
- CSR
- cable spreading room
- CSRS
- containment spray recirculation system
- CSS
- cask support structure
- cast stainless steel
- condensate storage system
- containment spray system
- core spray system
- core support structure
- CST
- condensate storage tank
- CSTB
- condensate storage tank building
- CSTR
- continuously stirred tank reactor
- CSTS
- condensate storage and transfer system
- construction and startup/turnover surveillance group
- cSv
- centisievert
- CSWS
- Central and Southwest Services, Inc.
- CT
- cable test
- CLEM (closed-loop ex-vessel machine) transporter
- compact tension
- computerized tomography
- cooling tower
- current transformer
- CTBT
- Comprehensive (Nuclear) Test Ban Treaty
- CTD
- charged tape detection
- CTF
- cask tilting fixture
- CTG
- combustion turbine generator
- C/Th
- carbon-to-thorium atomic ratio
- CTI
- Cooling Tower Institute
- CTL
- Canatom Ltd. (Canada)
- CTM
- cable transfer machine
- collimation test module
- CTOS
- cassette operations system
- CTP
- construction test procedure
- controlled temperature profile
- CTR
- certified test result
- controlled thermonuclear reactor
- CTRM
- control room
- CTS
- concentrate transfer system
- condensate transfer and storage
- current technical specification
- CTT
- cask transfer tunnel
- CTTP
- cask transport and testing program
- CTVC
- cable tray vertical chase
- C/U
- carbon-to-uranium atomic ratio
- CUB
- Citizen's Utility Board
- CUC
- cask unloading cell
- CUF
- cumulative usage factor
- CUP
- cask unloading pool
- CURE
- Citizens United for Responsible Energy
- CUSP
- City Utilities of Springfield
- CUWS
- cask unloading warm shop
- CV
- check valve
- containment vessel
- control valve
- CVA
- consecutive-valve actuation
- CVAS
- controlled ventilation area system
- CVC
- chemical and volume control
- CVCS
- charging and volume control system
- chemical and volume control system
- CVH
- containment vent header
- CVI
- certified vendor information
- containment ventilation isolation
- CVIS
- containment ventilation isolation signal
- CVL
- continuous vent line
- CVN
- Charpy V-notch
- construction verification notification
- CVP
- continuous vacuum priming
- CVPETS
- condenser vacuum pump effluent treatment system
- CVPSC
- Central Vermont Public Service Corp.
- CVPV
- containment vacuum pump valve
- CVTR
- Carolinas-Virginia Tube Reactor
- CW
- case work
- circulating water
- cold worked
- column waste
- cooling water
- CWA
- Clean Water Act
- CWB
- chilled water building
- CWIP
- construction work in progress
- CWO
- capital work order
- CWP
- contractor work plan
- control withdrawal prohibit
- CWPC
- calcined waste packaging cell
- CWPH
- circulating water pump house
- CWR
- cooling water return
- CWS
- circulating water system
- compressed work schedule
- cooling water system
- CX
- column extractant
- criticality experiment
- CY
- calendar year
- CYAP
- Connecticut Yankee Atomic Power Co.
- CYAPCO
- Connecticut Yankee Atomic Power Co.
D
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- DA
- deaerator
- dose assessment
- DAC
- discretionary access control
- distance amplitude correction
- DAE
- Department of Atomic Energy (India)
- DAEC
- Duane Arnold Energy Center
- DAF
- dynamic amplification factor
- DANATOM
- Danish Association for Industrial Development of Atomic Energy
- DAR
- design assessment report
- DAS
- data acquisition system
- disturbance analysis system
- DASHO
- Designated Agency Safety and Health Official
- DAT
- disconnect actuating tool
- DatF
- Deutsches Atomforum e.V. (Germany)
- DAVDS
- data acquisition and visual display system
- DAW
- dry active waste
- DAYP
- Dairyland Power Cooperative
- DB
- dry bulb
- DBA
- design-basis accident
- DBD
- design-basis document
- design-basis documentation
- DBDA
- design-basis depressurization accident
- DBE
- design-basis earthquake
- design-basis event
- DBF
- design-basis fault
- dominant bubble frequency
- DBFA
- design-basis fuel assembly
- DBFB
- deep-bed filter and blower
- DBFL
- design-basis flooding level
- DBI
- design-basis incident
- DBLOCA
- design-basis loss-of-coolant accident
- DBMS
- database management system
- DBNPS
- Davis-Besse Nuclear Power Station
- DBOA
- delayed breeder or alternative
- DBP
- dibutyl phosphate
- DBPB
- design-basis pipe break
- DBR
- design-basis reconstitution
- DBT
- design-basis tornado
- DBTT
- ductile-to-brittle transition temperature
- DBVP
- design baseline and verification program
- DC
- data control
- design contractor
- document control
- drain channel
- dc
- direct current
- DCA
- design change and authorization
- Dosimeter Corporation of America
- drain channel A
- DCAA
- Defense Contract Audit Agency
- DCB
- drain channel B
- DCC
- damaged core coolability
- Daniels Construction Company
- degraded core coolability
- DCCA
- Data Computer Corporation of America
- DCD
- design control document
- document control desk
- DCF
- dose conversion factor
- DCFO
- Deputy Chief Financial Officer
- DCH
- direct containment heating
- drain collection header
- DCIP
- design change improvement program
- DCIR
- daily Cadweld inspection report
- DCM
- Delaware Custom Material
- DCN
- design change notice
- document change notice
- DCNPP
- Diablo Canyon Nuclear Power Plant
- DCP
- design change package
- document control procedure
- Donald C. Cook Plant
- DCPD
- direct current potential drop
- DCR
- defueling completion report
- design change request
- direct conversion reactor
- DCRDR
- detailed control room design review
- DCRN
- dashpot cup retention nut
- DCS
- document control system
- DCSP
- dry cask storage project
- DCSS
- dry cask storage system
- DCT
- differential current transformer
- DCV
- directional control valve
- DCX
- direct current experiment
- DD
- deputy director
- Director's Decision
- D-D
- deuterium-deuterium
- D&D
- decontamination and decommissioning
- defueling and decommissioning
- DDD
- direct distance dialing
- DDH&DS
- digital data handling and display system
- DDL
- detergent and decontamination liquid [system]
- DDNB
- delayed departure from nucleate boiling
- DDR
- deficiency and disposition report
- DDS
- digital data service
- DDT
- deflagration to detonation
- design data transmittal
- DDTT
- drag disc-turbine transducer
- DE
- diagnostic evaluation
- Detroit Edison Co.
- dose equivalent
- double ended
- DEA
- driver evaluation assembly
- Drug Enforcement Administration
- DEB
- double-ended break
- DEC
- Digital Equipment Corporation
- DECL
- double-ended cold leg
- DECLG
- double-ended cold-leg guillotine
- DECO
- Detroit Edison Co.
- DECON
- decontamination and dismantlement
- DEDE
- Deputy Executive Director for Regulatory Effectiveness (NRC)
- DEDM
- Deputy Executive Director for Management Services NRC
- DEDR
- Deputy Executive Director for Regulatory Programs (NRC)
- DEFAS
- diverse emergency feedwater actuation system
- DEG
- double-ended guillotine
- DEGB
- double-ended guillotine break
- DEH
- digital electrohydraulic
- DEHL
- double-ended hot leg
- DEHLG
- double-ended hot-leg guillotine
- DEI
- dielectric and electrical insulation
- dose equivalent iodine
- DEIS
- draft environmental impact statement
- DEMA
- Diesel Engine Manufacturers Association
- DEP
- design external pressure
- diagnostic evaluation plan
- diagnostic evaluation program (NRC)
- DEPS
- double-ended pump suction
- DEPSG
- double-ended pump suction guillotine
- DER
- Department of Environmental Research
- Department of Environmental Resources
- design electrical rating
- Deviation Event Report
- double-ended rupture
- DERE
- Dounreay Experimental Reactor Establishment (Scotland)
- DERM
- disassembly examination reassembly machine
- DES
- data encryption standard
- Department of Emergency Services
- double-ended slot
- draft environmental statement
- DESL
- double-ended suction leg
- DESLS
- double-ended suction leg slot
- DET
- decomposition event tree
- diagnostic evaluation team
- DEW
- Deutsche Edelstahlwerke, A.G. (Germany)
- DF
- debris formation
- decontamination factor
- D&F
- determination and findings
- dF
- dilution factor (also Fd)
- DF
- dilution factor
- dose factor
- Df
- dose factor
- DFA
- driver fuel assembly
- dummy fuel assembly
- DFBN
- debris-filter bottom nozzle
- DFC
- design field change
- DFCS
- digital feedwater control system
- DFFR
- dynamic forcing function report
- DFI
- demand for information
- DFO
- designated Federal official
- DFOS
- diesel fuel oil system
- DFP
- decommissioning funding plan
- diesel fire pump
- DFR
- damaged fuel relocation
- Dounreay Fast Reactor (Scotland)
- DFRP
- downcomer flow resistance plate
- DFT
- dry film thickness
- DG
- diesel-engine generator
- diesel generator
- D/G
- diesel generator
- DGA
- dummy guide assembly
- DGAS
- diesel generator auxiliary system
- DGB
- diesel generator building
- DGCAIES
- diesel generator combustion air intake and exhaust system
- DGCWS
- diesel generator cooling water system
- DGEA
- draft generic environmental assessment
- DGFOSTS
- diesel generator fuel oil storage and transfer system
- DGLS
- diesel generator lubrication system
- DGSS
- diesel generator starting system
- DGZ
- desired ground zero
- DH
- decay heat
- DHHS
- Department of Health and Human Services
- DHI
- department head instruction
- DHP
- department head procedure
- DHR
- decay heat removal
- DHRS
- decay heat removal system
- direct heat removal service
- direct heat removal system
- DHS
- decontamination hot shop
- DHX
- dump heat exchanger
- DHXCS
- dump heat exchanger control system
- DID
- defense in depth
- DIE
- direct inspection effort
- DIMPLE
- Deuterium Moderated Pile Low Energy Reactor
- DIP
- design internal pressure
- DIPS
- dynamic isotope power system
- DIV
- drywell isolation valve
- DL
- dead load
- Duquesne Light Co.
- DLAT
- discharge-line air temperature
- DLF
- dynamic load factor
- DLL
- discharge-line length
- DLRWS
- dirty liquid radioactive waste system
- DLV
- discharge-line volume
- DLWL
- discharge-line water-leg length
- DM
- damage monitor
- demineralized
- DMA
- direct memory access
- DMPL
- Delmarva Power and Light Co.
- DMS
- data management subsystem
- Defense Message Service
- DMT
- dispersive mechanism test
- DMTR
- Dounreay Materials Testing Reactor (Scotland)
- DMUX
- distributed multiplex
- DMW
- demineralized makeup water
- DN
- delayed neutron
- discrepancy notice
- DNA
- Defense Nuclear Agency
- deoxyribonucleic acid
- does not apply
- DNB
- departure from nucleate boiling
- DNBR
- departure from nucleate boiling ratio
- DNFSB
- Defense Nuclear Facility Safety Board
- DNM
- delayed neutron monitor
- DNMS
- delayed neutron monitoring subsystem
- DNPS
- Dresden Nuclear Power Station
- DNRC
- Democritos Nuclear Research Center (Greece)
- DNS
- domain name server
- DNT
- dinitrotoluene
- DO
- designated official
- digital output
- dissolved oxygen
- duty officer
- DOCUMENT
- Department of Commerce
- dissolver off-gas condensate
- DOD
- Department of Defense
- DOE
- Department of Energy
- DOG
- dissolver off-gas
- DOI
- Department of the Interior
- DOL
- Department of Labor
- DOJ
- Department of Justice
- DOP
- detailed operating procedure
- dioctyl phosphate
- disaster operations plan
- di-sec, octyl phthalate
- DORF
- Diamond Ordnance Radiation Facility
- DOS
- degree of sensitization
- Department of State
- disk operating system
- DOSAR
- Dosimetry Applications Research Facility
- DOT
- Department of Transportation
- DP
- data processing
- differential pressure
- D/P
- differential pressure
- DPA
- delegation of procurement authority
- DPC
- Dairyland Power Cooperative
- Duke Power Co.
- DPD
- decontamination as precursor to decommissioning
- DPE
- development project engineer
- discipline project engineer
- DPIS
- differential pressure indicating switch
- DPIV
- drywell purge isolation valve
- DPLC
- Dayton Power and Light Co.
- dpm
- decade per minute
- disintegrations per minute
- DPMM
- dewpoint moisture monitor
- DPO
- differing professional opinion
- DPP
- drip pan pot
- DPR
- developmental power reactor
- demonstration power reactor
- DPRK
- Democratic People's Republic of Korea
- DPS
- demand position system
- DPV
- differing professional view
- DR
- design review
- designated representative
- Danish Reactor
- deficiency report
- discrepancy report
- DRA
- dropped rod accident
- DRC
- dropped rod control
- D/RE
- disassembly/reassembly equipment
- DRES
- direct reading emission spectrograph
- DRF
- dose reduction factor
- DRMW
- demineralized reactor makeup water
- DRP
- disaster recovery plan
- discrete radioactive particle
- DRPI
- digital rod position indication
- digital rod position indicator
- DRPIS
- digital rod position indication system
- DR/QR
- design review/quality revalidation
- DRR
- document release record
- DRS
- development requirements specification
- disassembly/reassembly station
- DRW
- dirty radwaste
- DS
- decontamination shop
- design standard
- D/S
- dynamic/static
- DSA
- diagnostic self-assessment
- DSAR
- defueled safety analysis report
- DSC
- design safety criterion/criteria
- dry shielded canister
- dry storage canister
- DSE
- draft safety evaluation
- DSER
- draft safety evaluation report
- DSI
- direction-setting issue
- DSIR
- Department of Scientific and Industrial Research (United Kingdom)
- DSL
- drawing and specification listing
- DSM
- defect-specific management
- DSO
- designated senior official
- director of site operations
- D-T
- deuterium-tritium
- DTA
- differential thermal analysis/analyses
- DTER
- draft technical evaluation report
- DTI
- diagnostic team inspection
- DTNSRDC
- David Taylor Naval Ship Research and Development Center
- DTPA
- diethylenetriamine pentaacetic acid
- DTR
- document transmittal record
- DTRF
- data transmittal and routing form
- DTRS
- development test requirement specification
- DTS
- differential temperature switch
- DTT
- design thermal transient
- design transition temperature
- DTV
- direct torus vent
- DUEGG
- dual-energy gamma group
- DUN
- Douglas United Nuclear
- DUNC
- deep underwater nuclear counting
- DuP-SR
- E.I. DuPont de Nemours and Company--Savannah River
- DUTS
- decision unit tracking system
- DVAL
- degraded voltage analytical limits
- DVM
- digital voltmeter
- DW
- deadweight
- demineralized water
- drywell
- DWCS
- defueling water cleanup system
- DWEDS
- drywell equipment drain sump
- DWFDS
- drywell floor drain sump
- DWG
- drawing
- DWICA
- deep-water isotopic current analyzer
- DWK
- Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen,
m.b.H. (Germany)
- DWL
- depressed water leg
- drywell
- DWMS
- demineralized water makeup system
- DWOC
- Don't Waste Oregon Council
- DWP
- detailed work plan
- DWR
- Department of Waste Resources
- DWS
- demineralized water system
- development work statement
- DWST
- demineralized water storage tank
- DWT
- drop weight test
- DYNAL
- dynamic analysis/analyses
E
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- EA
- enforcement action
- engineering assurance
- environmental assessment
- E/A
- element and attribute
- erratum/errata and addendum/addenda
- E&A
- erratum/errata and addendum/addenda
- EAB
- exclusion area boundary
- EAC
- emergency assessment coordinator
- EACC
- Environmental Assessment Command Center
- EACRP
- European-American Committee on Reactor Physics
- EACT
- emergency action and coordination team
- EAES
- European Atomic Energy Society
- EAG
- emergency action guidelines
- EAL
- emergency action level
- equipment air lock
- EAP
- emergency action plan
- Event Assessment Panel
- experimental activity proposal
- EAPS
- essential auxiliary power system
- EAR
- event analysis report
- EAS
- essential auxiliary support
- experiment assurance system
- EASE
- elastic analysis for structural engineering
- EASI
- estimate of adversary sequence interruption
- EAST
- Eastern Utilities Associates
- EATL
- energy-absorbing torque limiter
- EATS
- Enforcement Action Tracking System
- EB
- electron beam
- EBASCO
- Electric Bond and Share Company
- EBASCO Services Inc.
- EBOR
- experimental beryllium oxide reactor
- EBR
- experimental breeder reactor
- EBS
- emergency barrier system
- Emergency Broadcast System
- EBTF
- ECC (emergency core cooling) bypass test facility
- EBWR
- experimental boiling-water reactor
- EC
- eddy current
- emergency coordinator
- enforcement coordinator
- European Communities
- event category
- ECA
- energy-conversion area
- engineering change authorization
- ECAR
- East Central Area Reliability Coordination Agreement
- ECC
- emergency control center
- emergency core coolant
- emergency core cooling
- ECCS
- emergency core cooling system
- ECCW
- emergency core cooling water (system)
- ECD
- electron capture device
- ECF
- emergency cooling function
- ECFM
- eddy current flowmeter
- ECI
- emergency coolant injection
- essential controls and instrumentation
- ECN
- Energieonderzoek Centrum Nederland (Netherlands)
- engineering change notice
- ECNG
- East Central Nuclear Group, Inc.
- ECNP
- Environmental Coalition on Nuclear Power
- ECP
- emergency cooling pond
- employee concerns program
- engineering change proposal
- estimated critical position
- E&CQA
- engineering and construction quality assurance
- ECR
- emergency coolant recirculation
- estimate change request
- ECS
- emergency control station
- environmental control shroud
- environmental control system
- ECSP
- employee concerns special program
- ECST
- emergency condensate storage tank
- ECT
- eddy current test
- emergency cooling tower
- ECTG
- employee concerns task group
- ECTS
- electronic custom telephone set
- electronic custom telephone system
- ECU
- environmental control unit
- ECW
- emergency cooling water
- essential chilled water
- ECWP
- emergency cooling water pond
- ECWPH
- emergency cooling water pump house
- ED
- electron device
- exhaust damper
- EDAX
- energy dispersive x-ray analysis/analyses
- EDC
- emergency decontamination center
- ED&C
- electrical distribution and control
- EDCN
- engineering drawing change notice
- EDCP
- emergency design change package
- E&DCR
- engineering and design coordination report
- EDECWS
- emergency diesel engine cooling water system
- EDELS
- emergency diesel engine lubrication system
- EDESS
- emergency diesel engine starting system
- EdF
- Electricité de France (France)
- EDG
- emergency diesel generator
- ED/G
- emergency diesel generator
- EDGCAIES
- emergency diesel generator combustion air intake and exhaust system
- EDM
- electric discharge machining
- electrical disintegration machining
- EDN
- engineering discrepancy notice
- EDO
- Executive Director for Operations (NRC)
- EDP
- electronic data processing
- EDRO
- Executive Director of Regional Operations, Office of (U.S. Food and
Drug Administration)
- EDS
- electrical distribution system
- experimental data system
- explosives detection system
- EDSFI
- electrical distribution system functional inspection
- EDT
- energy dissipation test
- equipment drain tank
- explosives detector team
- EDTA
- ethylenedinitrilo tetraacetic acid
- EDTS
- equipment drain treatment system
- EEC
- end-of-equilibrium cycle
- European Economic Community
- EECW
- emergency equipment cooling water
- EEI
- Edison Electric Institute
- EEM
- extrapolated endpoint method
- EEPVS
- electrical equipment protection ventilation system
- EEQML
- electrical equipment qualification master list
- EEQSP
- environmental equipment qualification summary package
- EER
- engineering evaluation request
- EERF
- Eastern Environmental Radiation Facility
- EES
- economizer-evaporator superheater
- emergency exhaust system
- EESWS
- emergency equipment service water system
- EFAPP
- Enrico Fermi Atomic Power Plant
- EFAS
- emergency feedwater actuation signal
- emergency feedwater actuation system
- EFCO
- Engineers and Fabricators Company
- EFCV
- excess flow check valve
- EFD
- engineering flow diagram
- EFDS
- equipment and floor drainage system
- EFFBR
- Enrico Fermi Fast Breeder Reactor
- EFI
- Enrico Fermi Institute
- EFIC
- emergency feedwater initiation and control
- EFM
- expected flow measurement
- EFNS
- Educational Foundation for Nuclear Science
- EFO
- equipment forced outage (NRC performance indicator)
- EFOIA
- Electronic Freedom of Information Act
- EFP
- electric fire pump
- Enrico Fermi Atomic Power Plant
- EFPD
- effective full-power day
- equivalent full-power day
- EFPH
- effective full-power hour
- EFPM
- effective full-power month
- EFPY
- effective full-power year
- EFS
- emergency feedwater system
- EFT
- emergency filter treatment
- emergency filter train
- EFW
- emergency feedwater
- EFWS
- emergency feedwater system
- EFWST
- emergency feedwater storage tank
- EG
- emergency generator
- EGCR
- experimental gas-cooled reactor
- EGDN
- ethylene glycol dinitrate
- EG&G
- Edgerton, Germeshausen & Grier
- EGM
- enforcement guide memorandum/memoranda
- EGTS
- emergency gas treatment system
- EH
- electrohydraulic
- EHC
- electrohydraulic control
- EHNP
- Edwin I. Hatch Nuclear Plant
- EHR
- emergency heat removal
- EHV
- extra high voltage
- EI
- emergency injection
- engineering instruction
- E&I
- electrical and instrumentation
- EIA
- Energy Information Administration
- environmental impact appraisal
- EIAP
- environmental impact assessment project
- EICC
- emergency information and coordination center
- EIIS
- energy industry identification system
- EIP
- emergency implementation procedure
- EIR
- Eidgenossisches Institute für Reaktorforschung (Switzerland)
- engineering information request
- equipment inoperable record
- EIS
- effluent inventory system
- electrical and instrument shop
- electrical isolation scheme
- emergency injection system
- environmental impact statement
- environmental information system
- EJ
- environmental justice
- EKG
- effective kilogram
- EKMS
- Electronic Key Management System
- EL
- Elettronucleare Italiana (Italy)
- ELMS
- electrical load monitoring system
- ELP
- Employees Legal Project
- ELPHR
- experimental low-temperature process heat reactor
- ELR
- effectiveness limiting risk
- ELS
- error-likely situation
- ELU
- emergency lighting unit
- EM
- electromagnetic
- elevation model
- engineering management
- environmental management
- evaluation model
- E/M
- electromechanical
- E-MAD
- engineering, maintenance, assembly, disassembly
- EMB
- engineering in medicine and biology
- EMC
- electromagnetic capability
- electromagnetic compatibility
- emergency management coordinator
- engineering mockup critical experiment
- EMI
- electromagnetic interference
- engineering and manufacturing instruction
- EMO
- electric motor operated
- EMOV
- electromagnetically operated valve
- EMP
- electromagnetic pulse
- EMR
- electromagnetic radiation
- EMRV
- electromagnetic relief valve
- EMS
- earthquake monitoring system
- emergency management system
- Emergency Medical Services
- EMT
- electrical metallic tubing
- emergency management team
- executive management team
- EN
- enforcement notification
- event notification
- ENC
- Exxon Nuclear Company, Inc.
- ENDESA
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