LIST OF COMMONLY USED ABBREVIATIONS AT THE NRC
| Abbreviation | Full Term |
|---|---|
| 10 CFR | Title 10 of the Code of Federal Regulations |
| 3WFN | Three White Flint North |
| 8(a) | 8(a) Business Development Program |
| AASG | Association of American State Geologists |
| ABWR | advanced boiling-water reactor |
| AC | alternating current |
| ACC | additional Commission comments |
| ACHP | Advisory Council on Historic Preservation |
| ACI | American Concrete Institute |
| ACL | alternate concentration limit |
| ACMUI | Advisory Committee on the Medical Use of Isotopes |
| ACQC | American Society for Quality Control |
| ACRS | Advisory Committee on Reactor Safeguards |
| ACUS | Administrative Conference of the United States |
| ADAMS | Agencywide Documents Access and Management System |
| ADE | annual dose equivalent |
| ADM | Office of Administration |
| ADR | alternative dispute resolution |
| ADS-IDAC | Accident Dynamics Simulator Using Information, Decision, and Action in a Crew |
| A-E | architect-engineer |
| AEA | Atomic Energy Act of 1954, as amended |
| AEC | Atomic Energy Commission |
| AERB | Atomic Energy Regulatory Board |
| AFOE | annual frequency of exceedance |
| AFR | away from reactor |
| AIC | Akaike information criterion |
| AISC | American Institute of Steel Construction |
| ALARA | as low as is reasonably achievable (radiation exposure) |
| ALI | annual limit on intake |
| AM | Atlantic Margin |
| AMP | aging management program |
| AMR | analysis model report |
| ANL | Argonne National Laboratory |
| ANPR/ANPRM | advanced notice of proposed rulemaking |
| ANS | American Nuclear Society |
| ANS-8 | American Nuclear Society Standards Subcommittee 8 |
| ANSI | American National Standards Institute |
| ANSS | U.S. Advanced National Seismic System |
| AO | abnormal occurrence |
| AO | approving official |
| AOO | anticipated operational occurrence |
| AOR | analysis of record |
| AP1000 | Advanced Passive 1000 Megawatt (Westinghouse pressurized-water reactor) |
| APC | action plan committee |
| APEX | Advanced Power Extraction |
| API | application programming interface |
| API | American Petroleum Institute |
| APM | available physical margin |
| APP | advanced procurement plan |
| APSR | axial power shaping rod |
| APWR | advanced pressurized-water reactor |
| AR | advanced reactor |
| ARAR | applicable or relevant and appropriate requirement |
| ARB | Allegation Review Board |
| ARRP | Advanced Reactor Research Program |
| ARS | Agricultural Research Service |
| ARTIST | Aerosol Trapping in Steam Generator |
| AS | Agreement State |
| ASC | Administrative Services Center |
| ASCE | American Society of Civil Engineers |
| ASCII | American Standard Code for Information Interchange |
| ASD | allowable stress design |
| ASEP | Accident Sequence Evaluation Program |
| ASER | annual site environmental report |
| ASLBP | Atomic Safety and Licensing Board Panel |
| ASME | American Society of Mechanical Engineers |
| ASNT | American Society for Nondestructive Testing |
| ASP | accident sequence precursor |
| ASR | alkali silica reaction |
| ASTM | American Society for Testing and Materials |
| ATF | Bureau of Alcohol, Tobacco, and Firearms |
| ATWS | anticipated transient without scram |
| AVLIS | advanced vapor laser isotope separation |
| AWS | American Welding Society |
| AWWA | American Water Works Association |
| B&PV | Boiler and Pressure Vessel (ASME Code) |
| B&R | budget and reporting |
| B&W | Babcock & Wilcox |
| BAC | Business Advisory Center |
| BADGER | Boron-10 Areal Density Gauge for Evaluating Racks |
| bcc: | blind carbon copy |
| BDD | binary decision diagrams |
| BEIR | biological effects of ionizing radiation |
| BFN | Browns Ferry Nuclear Power Plant |
| bgs | below ground surface |
| BIA | Bureau of Indian Affairs |
| BIP | Behavior of Iodine Project |
| BLM | Bureau of Land Management |
| BMI | bottom-mounted instrumentation |
| BMP | best management practice |
| BNL | Brookhaven National Laboratory |
| BOC | budget object classification code |
| BOG | IAEA's Board of Governors |
| BPA | blanket purchase agreement |
| BPR | burnable poison rod |
| BPRA | burnable poison rod assembly |
| BPT | best practicable technology |
| BPT | Brownian passage time |
| BR | breathing rate |
| BRIIE | Baseline Risk Index for Initiating Events |
| BTP | branch technical position |
| BUC | burnup credit |
| BWR | boiling-water reactor |
| CA | Commissioners' assistants (singular or plural) |
| CA | construction authorization |
| CAA | Clean Air Act |
| CAA | Office of the Commission Appellate Adjudication |
| CAD | computer-aided design |
| CAM | continuous air monitor |
| CAMP | Code Application and Maintenance Program |
| CAO | chief acquisition officer |
| CAP | corrective action program |
| CAP | containment accident pressure |
| CAR | construction authorization request |
| CAROLFIRE | Cable Response to Live Fire |
| CBDT | cause-based decision tree |
| CBP | Customs and Border Protection |
| CBR | center, body, and range |
| cc: | carbon copy |
| CCDP | conditional core damage probability |
| CCF | common-cause failure |
| CCI | core-concrete interaction |
| CDA | critical digital asset |
| CDC | Centers for Disease Control and Prevention |
| CDE | committed dose equivalent |
| CDF | core damage frequency |
| CE | combustion engineering |
| CEA | control element assembly |
| CEDE | committed effective dose equivalent |
| CENA | central and eastern North America |
| CEQ | Council on Environmental Quality |
| CER | cumulative effects of regulation |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act |
| CFAST | Consolidated Fire Growth and Smoke Transport Model |
| CFD | computational fluid dynamics |
| CFE | cost-free expert |
| CFFA | Catalogue of Federal Finance Assistance |
| CFO | Chief Financial Officer |
| CFR | Code of Federal Regulations |
| CH | contact-handled |
| CHCO | Chief Human Capital Officer |
| CHF | critical heat flux |
| CHRISTI-FIRE | Cable Heat Release, Ignition, and Spread in Tray Installations During Fire |
| CI | confidence interval |
| CIO | Chief Information Officer |
| CIPAC | Critical Infrastructure Partnership Advisory Council |
| CJIS | Criminal Justice Information Services |
| CLASSI | continuum linear analysis of soil-structure interaction |
| CLIN | contract line item number |
| CMT | centroid moment tensor |
| CNWRA | Center for Nuclear Waste Regulatory Analyses |
| CO | contracting officer |
| COB | close of business |
| CoC | certificate of compliance |
| COCORP | Consortium for Continental Reflection Profiling |
| COI | conflict of interest |
| COL | combined license (combined construction and operating license) |
| COLA | combined license application |
| ComMIT | community model interface for tsunami |
| COMP | composite prior, composite superdomain |
| CONOPS | concepts of operations |
| COOP | continuity of operations |
| COP | community of practice |
| COP | containment overpressure |
| COR | contracting officer's representative |
| COSMOS | Consortium of Organizations for Strong-Motion Observation Systems |
| CP | computerized procedure |
| CP | construction permit |
| CP-ECR | Cathcart-Pawel Equivalent Cladding Reacted |
| CPFF | cost plus fixed fee |
| CPIC | Capital Planning and Investment Control |
| CPLD | complex programmable logic device |
| cpm | counts per minute |
| CPR | common prioritization of rulemaking |
| CPR | cardiopulmonary resucitation |
| CPT | cone penetration test |
| CR | continuing resolution |
| CR | control room |
| CRA | Congressional Review Act |
| CRADA | cooperative research and development agreement |
| CRCPD | Conference of Radiation Control Program Directors |
| CRDM | control rod drive mechanism |
| CRGR | Committee to Review Generic Requirements |
| CRPPH | Committee on Radiation Protection and Public Health |
| CRR | cyclic resistance ratio |
| CRT | crew response tree |
| CS | contract specialist |
| CSARP | Cooperative Severe Accident Research Program |
| CSAU | Code Scaling, Applicability, and Uncertainty |
| CsCI | cesium chloride |
| CSDRS | certified seismic design response spectra |
| CSFM | commercial spent fuel management |
| C-SGTR | consequential steam generator tube rupture |
| CSI | criticality safety index |
| CSM | conceptual site model |
| CSO | Computer Security Office (functions are now part of the Office of the Chief Information Officer) |
| CSR | cyclic stress ratio |
| CTBT | Comprehensive Test Ban Treaty |
| CTP | crack-tip parameter |
| CUF | cumulative usage factor |
| CV | cross vessel |
| CWA | Clean Water Act |
| CY | calendar year |
| D&D | decontamination and decommissioning |
| DAC | derived air concentration |
| DART | deep-ocean assessment and reporting of tsunamis |
| DAU | Defense Acquisition University |
| DBA | design-basis accident |
| DBE | design-basis event |
| DBEGM | design-basis earthquake ground motion |
| DBF | design-basis fire |
| DBFL | design-basis flood |
| DBT | design-basis threat |
| DBT | design-basis tornado |
| DBTT | ductile-to-brittle transition temperature |
| DBW | design-basis wind |
| DC | dose coefficient |
| DC | design certification |
| dc | direct current |
| DCAA | Defense Contract Audit Agency |
| DCF | dose conversion factor |
| DCPP | Diablo Canyon Power Plant |
| DCSS | dry cask storage system |
| DDA | deliquification, dissolution, and adjustment |
| DDE | double design earthquake |
| DDE | deep dose equivalent |
| DE | design earthquake |
| DECON | decontamination phase of a reactor |
| DEDCM | Deputy Executive Director for Corporate Management |
| DEDO | Deputy Executive Director for Operations |
| DEM | digital elevation model |
| DES | discrete element simulation |
| DESIREE-FIRE | Direct Current Electrical Shorting in Response to Exposure Fire |
| DF | decontamination factor |
| DFR | direct final rule |
| DFWCS | digital feedwater control system |
| DG | draft regulatory guide |
| DH | directive handbook |
| DHC | delayed-hydride cracking |
| DHR | decay heat removal |
| DHS | U.S. Department of Homeland Security |
| DI&C | digital instrumentation and control |
| DIP | damage indicating parameter |
| DLF | dynamic load factor |
| DLO | document liaison officer |
| DM | dissimilar metal |
| DMW | dissimilar metal weld |
| DNDO | Domestic Nuclear Detection Office |
| DNFSB | U.S. Defense Nuclear Facilities Safety Board |
| DOA | delegation of authority |
| DOC | U.S. Department of Commerce |
| DOE | U.S. Department of Energy |
| DOE-EHSS | U.S. Department of Energy—Office of Environment, Health, Safety and Security |
| DOI/IBC | U.S. Department of the Interior/Interior Business Center |
| DOL | U.S. Department of Labor |
| DOS | U.S. Department of State |
| DOT | U.S. Department of Transportation |
| DP | decommissioning plan |
| dpm | disintegrations per minute |
| DPO | differing professional opinion |
| DQO | data quality objectives |
| DSHA | deterministic seismic hazard assessment |
| DU | depleted uranium |
| DUF 6 | depleted uranium hexafluoride |
| DWPF | Defense Waste Processing Facility |
| EA | environmental analysis |
| EA | environmental assessment |
| EA | enforcement action |
| EAC | environmentally assisted cracking |
| EAF | environmentally assisted fatigue |
| EAL | emergency action level |
| EAP | Employee Assistance Program |
| EB | Executive Branch |
| EBP | extrabudgetary program |
| EBS | engineered barrier system |
| EC | economic consequences |
| EC | emergency classification |
| ECC | extended continental crust |
| ECCS | emergency core cooling system |
| ECI | external communications interface |
| ECL | emergency classification level |
| ECMA | East Coast magnetic anomaly |
| ECR | equivalent cladding reacted |
| ECTM | Eastern Canada Telemetered Network |
| EDSB | economically disadvantaged small business |
| EDEGM | elastic design earthquake ground motion |
| EDGM | elastic design ground motion |
| EDMG | extensive damage mitigation guidelines |
| EDO | Executive Director for Operations |
| EDS | energy dispersive spectroscopy |
| EDWOSB | economically disadvantaged woman-owned small business |
| EEO | equal employment opportunity |
| EERI | Earthquake Engineering Research Institute |
| EGOE | Expert Group on Occupational Exposure |
| EHS | environment, health, and safety |
| EHSM | environment, health, and safety manager |
| EHSS | Office of Environment, Health, Safety and Security (DOE) |
| EIA | Energy Information Administration |
| EIS | environmental impact statement |
| EIT | electronic and information technology |
| EJ | environmental justice (per Executive Order 12898, "Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations) |
| EJS | environmental justice statement |
| ELECTRA-FIRE | Electrical Cable Test Results and Analysis during Fire Exposure |
| EMDC | Eastern Management Development Center |
| ENA | eastern North America |
| ENDF | evaluated nuclear data file |
| EnPA | Energy Policy Act of 1992 |
| ENTOMB | entombment (of a shutdown reactor) |
| EO | executive order |
| eOPF | electronic official personnel folder |
| EOP | emergency operating procedure |
| EP | emergency preparedness/planning |
| EPA | U.S. Environmental Protection Agency |
| EPAct | Energy Policy Act of 2005 |
| EPCRA | Emergency Planning and Community Right-to-Know Act |
| EPICUR | Experimental Program for Iodine Chemistry Under Irradiation |
| EPIX | Equipment Performance and Information Exchange System |
| EPR | U.S. Evolutionary Power Reactor |
| EPRI | Electric Power Research Institute |
| EPRI-SOG | Electric Power Research Institute--Seismic Owners Group |
| EPU | extended power uprates |
| EPZ | emergency planning zone |
| EQ | environmental qualification |
| ER | environmental report |
| ERDA | Energy Research and Development Administration |
| E-RIDS | Electronic Regulatory Information Distribution System |
| ERO | emergency response organization |
| ESA | Endangered Species Act of 1973, as amended |
| ESBWR | economic simplified boiling-water reactor (GE-Hitachi design) |
| ESF | engineered safety feature |
| ESP | early site permit |
| ESRI | Environmental Systems Research Institute |
| EST | extended storage and transportation |
| ET | evapotranspiration |
| EWC | enterprisewide contract |
| EXAFS | Extended X-Ray Absorption Fine Structure |
| FAC | Federal Acquisition Certification |
| FACA | Federal Advisory Committee Act |
| FAC-C | Federal Acquisition Certification in Contracting |
| FAC-COR | Federal Acquisition Certification-Contracting Officer's Representative |
| FAC-P/PM | Federal Acquisition Certification for Program and Project Management |
| FAI | Federal Acquisition Institute |
| FAIMIS | Financial Accounting and Integrated Management Information System |
| FAITAS | Federal Acquisition Institute Training Application System |
| FAM | financial assurance mechanism |
| FAQ | frequently asked question |
| FAR | Federal Acquisition Regulation |
| FAST | Free and Secure Trade Program |
| FBI | Federal Bureau of Investigation |
| FBO | Federal Business Opportunities (FedBizOpps) |
| FCF | fuel cycle facility |
| FCO | funds certifying official |
| FCOP | Fuel Cycle Oversight Process |
| FDA | U.S. Food and Drug Administration |
| FDC | future disposal cell |
| FDS | fire dynamics simulator |
| FDT | fire dynamics tools |
| FE | finite element |
| FEA | finite element analysis |
| FedBizOpps | Federal Business Opportunities |
| FEI | Federal Executive Institute (OPM-Charlottsville, VA) |
| FEIS | final environmental impact statement |
| FEMA | Federal Emergency Management Agency |
| FEMP | Federal Emergency Management Program |
| FEP | features, events, and processes |
| FERC | Federal Energy Regulatory Commission |
| FFA | Federal Facility Agreements |
| FFP | firm fixed price |
| FFRDC | Federally funded research and development center |
| FFT | fast Fourier transform |
| FG | fuel grade |
| FGDC | Federal Geographic Data Committee |
| FGR | fission gas release |
| FIN | financial identification number |
| FIRS | foundation input response spectra |
| FISMA | Federal Information Security Management Act |
| FOIA | Freedom of Information Act |
| FONSI | finding of no significant impact |
| FOSID | frequency of onset of significant inelastic deformation |
| FPP | fire protection program |
| FR | Federal Register |
| FR | final rule |
| FRN | Federal Register notice |
| FSAR | final safety analysis report |
| FSEIS | final supplemental environmental impact statement |
| FSME | Office of Federal and State Materials and Environmental Management Programs (now part of the Office of Nuclear Material Safety and Safeguards) |
| FSRP | Facilities Standard Review Plan |
| FTE | full-time equivalent |
| FTF | F-Area Tank Farm or F-Tank Farm |
| FTP | file transfer protocol |
| FUSRAP | Formerly Utilized Sites Remedial Action Program |
| FWS | U.S. Fish and Wildlife Service |
| FY | fiscal year |
| FYI | for your information |
| g | gravitational unit |
| G&A | general and administrative (expenses) |
| G8 | Group of Eight |
| GA | General Atomics |
| GAO | U.S. Government Accountability Office |
| GC | Gulf Coast |
| GCC | Government Coordinating Council |
| GCP | general closure plan |
| GDC | general design criteria |
| GDP | gaseous diffusion plant |
| GE | General Electric |
| GEH | General Electric-Hitachi |
| GEIS | generic environmental impact statement |
| GG | General Grade |
| GHG | greenhouse gas |
| GL | generic letter |
| GL | general license |
| GLD | generally licensed device |
| GLTS | General License Tracking System |
| GM | Geiger-Mueller |
| GM | ground motion |
| GMC | ground motion characterization |
| GMRS | ground motion response spectra |
| GPO | U.S. Government Publishing Office |
| GPR | ground-penetrating radar |
| GPS | Global Positioning System |
| GROA | geologic repository operations area |
| GSA | Geological Society of America |
| GSA | General Services Administration |
| GSA | General Separations Area |
| GSC | Geological Survey of Canada |
| GSI | generic safety issue |
| GSL | geosynthetic clay liner |
| GTCC | greater-than-Class-C (waste) |
| GTRI | Global Threat Reduction Initiative |
| Gz | Graetz number |
| H&S | health and safety |
| H/U | hydrogen-to-uranium |
| H/U | heatup |
| HAC | hypothetical accident conditions |
| HAZ | heat-affected zone |
| HBF | high-burnup fuel |
| HBU | high burnup |
| HDPE | high-density polyethylene |
| HE | Hosgri Earthquake |
| HEU | high-enriched uranium |
| HFRA | Hafnium Flux Reduction Assembly |
| HHS | U.S. Department of Health and Human Services |
| HID | hazard input document |
| HLW | high-level waste (radioactive) |
| HM | heavy metal |
| HME | hazardous materials enforcement |
| HNA | high-nickel alloy |
| HOO | headquarters operations officer |
| HPIC | high-pressure ionization chamber |
| HPS | Health Physics Society |
| HPSSC | Health Physics Society Standards Committee |
| HPT | health physics technician |
| HQ | headquarters |
| HRMS | Human Resources Management System |
| HRQC | Highway Route Controlled Quantity |
| HRR | highly radioactive radionuclide |
| HSK | Swiss Federal Nuclear Safety Inspectorate |
| HSPD | Homeland Security Presidential Directive |
| HSSM | Highway Security-Sensitive Material |
| HTF | H-Area Tank Farm or H-Tank Farm |
| HTGR | high-temperature gas-cooled reactor |
| HUBZone | historically underutilized business zone |
| HV | high velocity |
| HVAC | heating, ventilation, and air conditioning |
| HWFP | hazardous waste facility permit |
| I&C | instrumentation and controls |
| IA | Interagency Agreement |
| IAEA | International Atomic Energy Agency |
| IASPEI | International Association of Seismology and Physics of the Earth's Interior |
| IBC | international building code |
| IBR | incorporation by reference |
| IC | increased controls |
| ICC | International Code Council |
| ICE | Immigration and Customs Enforcement |
| ICRP | International Commission on Radiological Protection |
| ICRU | International Commission on Radiation Units and Measurements |
| ICT | information and communication technology |
| ICWG | International Council Working Group |
| IDC | indefinite delivery contract |
| IDIQ | indefinite delivery/indefinite quantity |
| IDLH | immediately dangerous to life and health |
| IDS | intrusion detection system |
| IEEE | Institute of Electrical and Electronics Engineers |
| IERP | independent external review panel |
| IFNEC | International Framework for Nuclear Energy Cooperation |
| IGCE | independent Government cost estimate |
| IMPEP | Integrated Materials Performance Evaluation Program |
| IN | information notice |
| IND | improvised nuclear device |
| INES | International Nuclear Event Scale |
| INL | Idaho National Laboratory |
| INRA | International Nuclear Regulators Association |
| IP | inspection procedure |
| IPA | Intergovernmental Personnel Act |
| IPAC | Intergovernmental Payment and Collection System |
| IPPAS | International Physical Protection Advisory Service |
| IPT | integrated project team |
| IRIS | Incorporated Research Institutions for Seismology |
| IROFS | item(s) relied-on for safety |
| IRRS | Integrated Regulatory Review Service |
| ISA | integrated safety analysis |
| iSALE | Impact Simplified Arbitrary Lagrangian-Eulerian |
| ISC | International Seismological Centre |
| ISFSI | independent spent fuel storage installation |
| ISG | interim staff guidance |
| ISL | in situ leach |
| ISMP | Integrated Source Management Portfolio |
| ISR | in situ recovery |
| ISRS | in-structure response spectra |
| ISSO | information system security officer |
| IT | information technology |
| ITC | informed technical community |
| ITDB | Illicit Trafficking Database |
| ITWI | important to waste isolation |
| IX | ion exchange |
| J&A | justification and approval |
| JEAC | Japan Electric Association Code |
| JEAG | Japan Electric Association Guide |
| JFD | joint frequency distribution |
| JISAO | Joint Institute for the Study of the Atmosphere and Ocean |
| JLD | Japan Lessons-Learned Project Directorate |
| JMA | Japan Meteorological Agency |
| JNES | Japan Nuclear Energy Safety |
| JOFOC | justification for other than full and open competition |
| JPM | job performance measure |
| KARISMA | Kashiwazaki-Kariwa Research Initiative for Seismic Margin Assessment |
| K d | distribution coefficient |
| k eff | “k” effective-neutron multiplication factor |
| KK | Kashiwazaki-Kariwa |
| KM | knowledge management |
| L&D | learning and development |
| LA | license application |
| LAN | local area network |
| LANL | Los Alamos National Laboratory |
| LAR | license amendment request |
| LAW | low-activity waste |
| LBL | Lawrence Berkeley National Laboratory |
| LCO | limiting condition for operation |
| LDE | lens dose equivalent |
| LDO | Lamont-Doherty Earth Observatory |
| LES | Louisiana Energy Services |
| LEU | low-enriched uranium |
| LHS | Latin hypercube sampling |
| LiDAR | light detection and ranging |
| LLD | lower limit of detection |
| LLEA | local law enforcement agency |
| LLNL | Lawrence Livermore National Laboratory |
| LLRW | low-level radioactive waste |
| LLW | low-level waste |
| LOCA | loss-of-coolant accident |
| LPP | leadership potential program |
| LRFD | load resistance factor design |
| LSA | low specific activity |
| LSN | Licensing Support Network |
| LT | leak testing |
| LTC | long-term cooling |
| LTP | license termination plan |
| LTS | License Tracking System |
| LTSP | long-term surveillance plan |
| LVS | License Verification System |
| LWR | light-water reactor |
| M&D | manufacturer and distributor |
| MA | monitoring area |
| MAR | Marianna (RLME source) |
| MARSSIM | Multi-Agency Radiation Survey and Site Investigation Manual |
| MBES | multibeam echo sounding |
| MCC | moisture characteristic curve |
| MCE | maximum credible earthquake |
| MCEER | Multi-Disciplinary Center for Earthquake Engineering Research |
| MCL | maximum containment level |
| MCMC | Markov chain Monte Carlo |
| MD | management directive |
| MDC | minimum detectable contamination |
| MECE | mutually exclusive and collectively exhaustive |
| MESE | Mesozoic and younger extended crust |
| METI | Ministry of Economy, Trade, and Industry (Japan) |
| MF | monitoring factor |
| MFFF | mixed-oxide fuel fabrication facility |
| MIC | microbially influenced corrosion |
| MIDC | midcontinent |
| MIL | military |
| MIT | mechanical integrity testing |
| MLSR | monthly letter status report |
| MML | master materials license |
| MNOP | maximum normal operating pressure |
| MOA | memorandum of agreement |
| MofS | margin of safety |
| MOST | Method of Splitting Tsunami |
| MOU | memorandum of understanding |
| MOX | mixed oxide |
| MPC | multipurpose cask |
| MRB | Management Review Board |
| MRS | monitored retrievable storage |
| MSD | Mitigating Strategies Directorate |
| MSDS | material safety data sheet |
| MSL | mean sea level |
| MT | magnetic particle examination |
| NA or na | not applicable (also n/a or N/A) |
| NAC | National Agency Check |
| NAGRA | Nationale Genossenschaft für die Lagerung radioaktiver Abfälle (Switzerland National Cooperative for the Disposal of Radioactive Waste) |
| NAICS | North American Industry Classification System |
| NAS | National Academy of Sciences |
| NCAI | National Congress of American Indians |
| NCDC | National Climatic Data Center |
| NCOE | Niigataken Chuetsu-Oki earthquake |
| NCRP | National Council on Radiation Protection and Measurements |
| NCT | normal conditions of transport |
| NCTR | NOAA (National Oceanic and Atmospheric Administration) Center for Tsunami Research |
| NDAA | National Defense Authorization Act |
| NDE | nondestructive examination |
| NDT | nil-ductility transition |
| NDT | nondestructive test |
| NE | Office of Nuclear Energy (U.S. Department of Energy) |
| NEA | Nuclear Energy Agency (Organisation for Economic Co-operation and Development) |
| NEAT | NRC's Enterprise Acquisition Toolset |
| NEDB | National Earthquake Database |
| NEES | network for earthquake engineering simulation |
| NEHRP | National Earthquake Hazards Reduction Program |
| NEI | Nuclear Energy Institute |
| NEIC | National Earthquake Information Center |
| NELAC | National Environmental Laboratory Accreditation Conference |
| NEPA | National Environmental Policy Act of 1969, as amended |
| NERHC | New England Radiological Health Compact |
| NERI | Nuclear Energy Research Initiative |
| NESHAP | National Emissions Standard for Hazardous Air Pollutants |
| NEUP | Nuclear Energy University Program |
| NFH | nonfuel hardware |
| NFPA | National Fire Protection Association |
| NFS | Nuclear Fuel Services |
| NGA | National Governors Association |
| NGA | next generation attenuation relationship |
| NHPA | National Historic Preservation Act of 1966, as amended |
| NICEE | National Information Centre of Earthquake Engineering |
| NISA | Nuclear and Industrial Safety Agency (Japan) |
| NIST | National Institute of Standards and Technology |
| NLO | no legal objection |
| NLT | no later than |
| NMA | National Mining Association |
| NMED | Nuclear Material Events Database |
| NMMSS | Nuclear Materials Management & Safeguards System |
| NMP | National Materials Program |
| NMSS | Office of Nuclear Material Safety and Safeguards |
| NNSA | National Nuclear Security Administration |
| NOAA | National Oceanic and Atmospheric Administration |
| NOED | notice of enforcement discretion |
| NORM | naturally occurring radioactive materials |
| NORM/NARM | naturally occurring or accelerator-produced radioactive materials |
| NOV | notice of violation |
| NPDES | National Pollutant Discharge Elimination System |
| NPH | natural phenomena hazards |
| NPL | National Priorities List for CERCLA |
| NPO | noncompliant performance objective |
| NPP | nuclear power plant |
| NPSH | net positive suction head |
| NQA | nuclear quality assurance |
| NRC | U.S. Nuclear Regulatory Commission |
| NRO | Office of New Reactors |
| NRPB | National Radiation Protection Board |
| NRR | Office of Nuclear Reactor Regulation |
| NSA | neutron source assembly |
| NSC | Nuclear Safety Commission (Japan) |
| NSC | National Safety Council |
| NSHMP | National Seismic Hazard Mapping Project |
| NSIR | Office of Nuclear Security and Incident Response |
| NSSS | nuclear steam supply system |
| NSTS | National Source Tracking System |
| NTAS | National Threat Advisory System |
| NTEU | National Treasury Employees Union |
| NTIS | National Technical Information Service |
| NUREG | U.S. Nuclear Regulatory Commission technical report designation |
| NUREG/BR | NUREG brochure |
| NUREG/CP | conference proceedings NUREG |
| NUREG/CR | contractor-prepared NUREG |
| NUREG/IA | international agreement NUREG |
| NUREG/KM | knowledge management NUREG |
| NVLAP | National Voluntary Laboratory Accreditation |
| NWPA | Nuclear Waste Policy Act of 1982 |
| NWPAA | Nuclear Waste Policy Amendments Act of 1987 |
| NWS | National Weather Service |
| NWTRB | Nuclear Waste Technical Review Board |
| OAS | Organization of Agreement States |
| OBE | operating-basis earthquake |
| OCA | Office of Congressional Affairs |
| OCFO | Office of the Chief Financial Officer |
| OCHCO | Office of the Chief Human Capital Officer |
| OCIO | Office of the Chief Information Officer |
| OCOI | organizational conflict of interest |
| OCRWM | Office of Civilian Radioactive Waste Management (DOE) |
| OD | Office Director |
| OD | organizational development |
| OE | Office of Enforcement |
| OECD | Organisation for Economic Co-operation and Development |
| OEDO | Office of the Executive Director for Operations |
| OEL | occupational exposure limit |
| OFA | optimized fuel assembly |
| OFPP | Office of Federal Procurement Policy |
| OFR | Office of the Federal Register |
| OGC | Office of the General Counsel |
| OI | Office of Investigations |
| OIG | Office of the Inspector General |
| OIP | Office of International Programs |
| OIS | Office of Information Services (functions now in the Office of the Chief Information Officer) |
| OL | operating license |
| OMB | Office of Management and Budget |
| OPA | Office of Public Affairs |
| OpenSees | open system for earthquake engineering simulation |
| OPM | U.S. Office of Personnel Management |
| ORNL | Oak Ridge National Laboratory |
| ORR | operational readiness review |
| OSHA | Occupational Safety and Health Administration |
| OSL | optically stimulated luminescence |
| OSRP | Offsite Source Recovery Project |
| OUO | official use only |
| OWFN | One White Flint North |
| P&ID | piping and instrumentation diagrams |
| P5 | permanent five members of United Nations Security Council |
| PA | performance assessment |
| PAG | protective action guide |
| PARS | Publicly Available Records System (ADAMS) |
| PASSCAL | program for array seismic studies of the continental lithosphere |
| PBPM | planning, budgeting, and performance management |
| PCSA | preclosure safety analysis |
| PCT | peak cladding temperature |
| Portable Document Format | |
| PDR | Public Document Room (NRC) |
| PEER | Pacific Earthquake Engineering Research Center |
| PEGASOS | Probabilistische Erdbeben-Gefährdungs-Analyse für die KKW-Standorte in der Schweiz (Probabilistic Seismic Hazard Analysis for Swiss Nuclear Power Plant Sites) |
| PEM | Portfolio Enrollment Module |
| PG | power grade |
| PG&E | Pacific Gas & Electric |
| PGA | peak ground acceleration |
| PGD | peak ground displacement |
| PGV | peak ground velocity |
| PHA | peak horizontal ground acceleration |
| PII | personally identifiable information |
| PM | particulate matter |
| PM | project manager |
| PM10 | particulate matter less than 10 micrometers |
| PMDA | program management and data analysis |
| PMEL | Pacific Marine Environmental Laboratory |
| PMF | probable maximum flood |
| PMP | probable maximum precipitation |
| PNNL or PNL | Pacific Northwest National Laboratory |
| PO | performance objective |
| POA&M | plan of action and milestones |
| POC | point of compliance |
| POC | point of contact |
| POC | project oversight committee |
| POP | period of performance |
| PPE | personal protective equipment |
| ppm | parts per million |
| PPRP | participatory peer review panel |
| PQD | post-quench ductility |
| PR | proposed rule |
| PRA | Paperwork Reduction Act |
| PRA | probabilistic risk assessment |
| PRB | Petition Review Board |
| PRM | petition for rulemaking |
| PSHA | probabilistic seismic hazard analysis |
| PSSCs | principal structures, systems, and components |
| PTFI | project technical facilitator integrator |
| PTHA | probabilistic tsunami hazard analysis |
| PTI | project technical integrator |
| Pub. L. | public law |
| PV | pore volumes |
| PVHA | probabilistic volcanic hazard analysis |
| PWHT | preheat and postweld heat treatment |
| PWR | pressurized-water reactor |
| Q&A | question and answer |
| QA | quality assurance |
| QAP | quality assurance program |
| QASP | quality assurance surveillance plan |
| QC | quality control |
| R&D | research and development |
| RA | Regional Administrator |
| rad | radiation absorbed dose |
| RAI | request for additional information |
| RAM | radioactive material |
| RAMQC | radioactive material in quantities of concern |
| RATS | Regulation Action Tracking System |
| RC | reinforced concrete |
| RCC | Rulemaking Coordinating Committee |
| RCCA | rod cluster control assembly |
| RCPD | radiation control program directors |
| RCRA | Resource Conservation and Recovery Act |
| RDD | radiological dispersal device |
| RED | radiation emitting device |
| REIRS | Radiation Exposure Information and Reporting System |
| rem | Roentgen equivalent man |
| REQ | requisition |
| RES | Office of Nuclear Regulatory Research |
| RFCOP | Revised Fuel Cycle Oversight Process |
| RFI | request for information |
| RFP | request for proposal |
| RFPA | request for procurement action |
| RFQ | request for quotation |
| RG | regulatory guide |
| RH | remote-handled |
| RI | NRC Region I (King of Prussia, PA) |
| RII | NRC Region II (Atlanta, GA) |
| RIII | NRC Region III (Lisle, IL) |
| RIL | research information letter |
| RIN | regulation identifier number |
| RIS | regulatory issue summary |
| RIV | NRC Region IV (Arlington, TX) |
| RLME | repeated large-magnitude earthquake |
| RLO | records liaison officer |
| RMEI | reasonably maximally exposed individual |
| RO | reverse osmosis |
| RO | reviewing official |
| ROD | record of decision |
| ROP | Reactor Oversight Process |
| RSAO | regional State agreements officer |
| RSI | request for supplemental information |
| RSICC | Radiation Safety Information Computational Center |
| RSLO | regional State liaison officer |
| RSO | radiation safety officer |
| RT | radiographic examination |
| RTS | Reciprocity Tracking System |
| RVT | random vibration theory |
| RWP | radiation work permit |
| SA | spectral acceleration |
| SA | security advisory (generic communications) |
| SAIC | Science Applications International Corporation |
| SAMGs | severe accident management guidelines |
| SAR | safety analysis report |
| SASSI | system for analysis of soil-structure interaction |
| SASW | spectral analysis of surface waves |
| SB | small business |
| SBA | Small Business Administration |
| SBCR | Office of Small Business and Civil Rights |
| SC | seismic category |
| SCATR | Source Collection and Threat Reduction (Program) |
| SCC | stress corrosion cracking |
| SCC | Standing Committee for Compatibility |
| SCEC | Southern California Earthquake Center |
| SCML | south-central magnetic lineament |
| SCO | surface contaminated object |
| SCR | stable continental region |
| SD | spectral displacement |
| SDC | seismic design category |
| SDE | shallow (skin) dose equivalent |
| SDF | Saltstone Disposal Facility |
| SDMP | site decommissioning management plan |
| SDVOB | service-disabled veteran-owned business |
| SECY | Office of the Secretary |
| SEI | Structural Engineering Institute |
| SEIS | supplemental environmental impact statement |
| SEM | scanning electron microscopy |
| SEP | source evaluation panel |
| SER | safety evaluation report |
| SERP | safety and environmental review panel |
| SEUS | southeastern United States |
| SF | standard form |
| SF | spontaneous fission |
| SFP | spent fuel pool |
| SG | safeguards |
| SGI | safeguards information |
| SGI-M | safeguards information modified-handling |
| SHPO | State historic preservation office |
| SI | Système International (d'unités) or International System of Units |
| SIFT | short-term inundation forecast tool |
| SILEX | Separation of Isotopes by Laser Excitation |
| SIP | State implementation plans |
| SLO | State liaison officer |
| SMA | seismic margin assessment |
| SNF | spent nuclear fuel |
| SNL | Sandia National Laboratories |
| SNM | special nuclear material |
| SOC | statement of considerations |
| SOG | Seismicity Owners Group |
| SOP | standard operating procedure |
| SOW | statement of work |
| SPF | Saltstone Processing Facility |
| SPRA | seismic probabilistic risk assessment |
| SPS | sample per second |
| SPT | standard penetration test |
| SR | surveillance requirement |
| SRM | staff requirements memorandum |
| SRNL | Savannah River National Laboratory |
| SRO | senior reactor operator |
| SRP | Standard Review Plan (NUREG-0800) |
| SRS | Savannah River Site |
| SRSS | square-root-of-the-sum-of-the-squares |
| SRTM | Shuttle Radar Topography Mission |
| SS&D | sealed source and device |
| SS&DR | Sealed Source and Device Registry |
| SSA | Seismological Society of America |
| SSAB | site-specific advisory board |
| SSC | seismic source characterization |
| SSCs | structures, systems, and components |
| SSE | safe shutdown earthquake |
| SSG | strategic sourcing group |
| SSHAC | Senior Seismic Hazard Analysis Committee |
| SSJ | sole-source justification |
| SSNM | strategic special nuclear material |
| SSRCR | Suggested State Regulations for the Control of Radiation |
| STAQS | Strategic Acquisition System |
| Stat. | statute |
| STPNOC | South Texas Project Nuclear Operating Company |
| SUNSI | sensitive unclassified nonsafeguards information |
| SUSN | Southeastern United States Network |
| SWPF | Salt Waste Processing Facility |
| SwRI | Southwest Research Institute |
| SWU | separative work unit |
| T&R | trustworthiness and reliability |
| TA | technical assistant |
| TAC | technical accountability code |
| TAC | technical assignment control (number) |
| TAD | transportation, aging, and disposal |
| TAR | technical assistance request |
| TCN | transaction control number |
| TDI | technically defensible interpretations |
| TEDE | total effective dose equivalent |
| TEM | transmission electron microscopy |
| TENORM | technologically enhanced naturally occurring radioactive material |
| TEPCO | Tokyo Electric Power Company |
| TER | technical evaluation report |
| TFI | technical facilitator integrator |
| TG | technical guide |
| TI | temporary instruction |
| TI | Transport Index |
| TI | technical integrator |
| TLD | thermoluminescent dosimeter |
| TMI | Three Mile Island |
| TOC | table of contents |
| TODE | total organ dose equivalent |
| TPA | Total-System Performance Assessment (NRC) |
| TR | technical report |
| TR | topical report |
| TRU | transuranic |
| TS | technical specification(s) |
| TSA | Transportation Security Administration |
| TSAR | topical safety analysis report |
| TSC | technical support center |
| TSP | Thrift Savings Plan |
| TSPA | Total System Performance Assessment |
| TWA | time-weighted average |
| TWFN | Two White Flint North |
| TWIC | transportation worker identification credentials |
| U&Th | uranium and thorium |
| U.S.C. | United States Code |
| UBC | Uniform Building Code |
| UCERF | uniform California earthquake rupture forecast |
| UCL | upper control limit |
| UF 6 | uranium hexafluoride |
| UFD | used nuclear fuel disposal |
| UFSAR | updated final safety analysis report |
| UHS | uniform hazard spectrum |
| UIC | Underground Injection Control |
| UK | United Kingdom |
| UMTRCA | Uranium Mill Tailings Radiation Control Act |
| U-nat | natural uranium |
| UNAVCO | University NAVSTAR Consortium |
| UNSCEAR | United Nations Scientific Committee on the Effects of Atomic Radiation |
| UO 2 | uranium dioxide |
| UPS | uninterruptible power supply |
| URL | underground research laboratory |
| USACE | U.S. Army Corps of Engineers |
| USCS | Unified Soil Classification System |
| USDA | U.S. Department of Agriculture |
| USEC | United States Enrichment Corporation |
| USGS | U.S. Geological Survey |
| USMA | United States Military Academy (West Point, NY) |
| USMMA | United States Merchant Marine Academy (Kings Point, NY) |
| USN | United States Navy |
| USNA | United States Naval Academy |
| USNSN | U.S. National Seismograph Network |
| USQ | Unreviewed Safety Question. For the FSRP, as defined at 10 CFR 72.48 |
| UT | ultrasonic examination |
| UTC | coordinated universal time |
| UTR | Upper Three Runs |
| UUSA | URENCO USA |
| V&V | verification and validation |
| V/H | vertical-to-horizontal ratio |
| WAC | waste acceptance criteria |
| WBL | Web-based licensing |
| WC | waste confidence |
| WCD | waste confidence decision or Waste Confidence Directorate |
| WCD | worst-case difference |
| WCS | waste control specialists |
| WD | waste determination |
| WG | weapons grade |
| WG | working group |
| WIPP | Waste Isolation Pilot Plant |
| WIR | waste incidental to reprocessing |
| WMDC | Western Management Development Center (OPM-Aurora, CO) |
| WOSB | women-owned small business |
| WPS | welding procedure specification |
| WUS | western United States |
| WVDP | West Valley Demonstration Project |
| WWSSN | World-Wide Standardized Seismograph Network |
| XANES | X-Ray Absorption Near Edge Structure |
| XRD | x-ray diffraction |
| YMRP | Yucca Mountain Review Plan |
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