| Am | americium |
| APCS | Abandonment of Panel Closures in the South |
| ARIES | Advanced Recovery and Integrated Extraction System |
| ATWIR | Annual Transuranic Waste Inventory Report |
| AU-50 | Director of the Office of Security |
| B4C | boron carbide |
| BRAGFLO | brine and gas flow modeling code |
| BRC | Blue Ribbon Commission on America’s Nuclear Future |
| C&C | Consultation and Cooperation |
| CAB | Citizens Advisory Board (Savannah River Site) |
| CBFO | see DOE-CBFO |
| CCA | Compliance Certification Application |
| CCC | criticality control container; criticality control component |
| CCDF | complementary cumulative distribution function |
| CCO | criticality control overpack |
| CD | Critical Decision (e.g., CD-0 for Critical Decision 0) |
| CDF | cumulative distribution function |
| CFR | Code of Federal Regulations |
| CH | contact-handled |
| CH-TRU | contact-handled transuranic |
| Ci | curie |
| CID | Comprehensive Inventory Database |
| CRA | Compliance Recertification Application |
| CVSA | Commercial Vehicle Safety Alliance |
| CY | calendar year |
| DBFT | Deep Borehole Field Test |
| DOD | Department of Defense |
| DOE | Department of Energy |
| DOE-CBFO | Department of Energy’s Office of Environmental Management’s Carlsbad Field Office |
| DOE-CEPE | Department of Energy’s Office of Cost Estimating and Program Evaluation |
| DOE-EM | Department of Energy’s Office of Environmental Management |
| DOE-NNSA | Department of Energy’s National Nuclear Security Administration |
| DMO | direct metal oxidation |
| DNFSB | Defense Nuclear Facilities Safety Board |
| DNN | Department of Energy’s National Nuclear Security Administration, Office of Defense Nuclear Nonproliferation |
| DOS | Department of State |
| DOT | Department of Transportation |
| DSA | documented safety analysis |
| DSP | diluted surplus plutonium |
| DSP-TRU | diluted surplus plutonium transuranic |
| DWPF | Defense Waste Processing Facility |
| EEG | Environmental Evaluation Group |
| EIS | environmental impact statement |
| EM | see DOE-EM |
| EPA | Environmental Protection Agency |
| FEP | features, events, and processes |
| FGA | flammable gas analysis |
| FGE | fissile gram equivalent |
| FPEIS | final programmatic environmental impact statement |
| FTE | full-time equivalent |
| FY | fiscal year |
| g | gram |
| GAO | Government Accountability Office |
| GSP | graded security protection |
| GTCC | Greater-Than-Class-C |
| HalfPACT | half package transporter |
| HB-Line | chemical processing facility at Savannah River Site |
| HLW | high level radioactive waste |
| HQ | headquarters |
| HRCQ | highway route controlled quantities |
| HWDU | hazardous waste disposal unit |
| HWFP | Hazardous Waste Facility Permit |
| IAEA | International Atomic Energy Agency |
| IART | Incident/Accident Response Team |
| IDA | Institute for Defense Analyses |
| INL | Idaho National Laboratory |
| INV | inventory report |
| IPFM | International Panel on Fissile Materials |
| K | potassium |
| KAC | K-Area Complex |
| KIS | K Interim Surveillance |
| LANL | Los Alamos National Laboratory |
| LCCE | Life-Cycle Cost Estimate |
| LD | lethal dose |
| LWA | Land Withdrawal Act (Waste Isolation Pilot Plant) |
| LWR | light-water reactor |
| M3 | Material Management and Minimization (an office within the Department of Energy’s National Nuclear Security Administration) |
| m3 | cubic meter |
| MAR | Material at Risk |
| MC&A | material control and accountability |
| MCL | maximum contaminant level |
| MD | materials disposition |
| MFFF | Mixed Oxide Fuel Fabrication Facility |
| MOA | memorandum of agreement |
| MOX | mixed oxide |
| MPa | megapascal |
| MRRC | Materials Risk Review Committee |
| MT | metric tons |
| MTHM | metric tons of heavy metal |
| NA-10 | Office of Defense Programs (within the Department of Energy’s National Nuclear Security Administration) |
| NA-80 | Office of Defense Programs Counterterrorism and Counterproliferation (within the Department of Energy’s National Nuclear Security Administration) |
| NDA | non-destructive assay |
| NDAA | National Defense Authorization Act |
| NEPA | National Environmental Policy Act |
| NMC&A | nuclear material control and accountability |
| NMED | New Mexico Environment Department |
| NNSA | see DOE-NNSA |
| NOI | notice of intent |
| Np | neptunium |
| NRC | National Research Council |
| NTP | National TRU Program |
| NUREG | Nuclear Regulatory Report |
| NWP | Nuclear Waste Partnership LLC |
| NWPA | Nuclear Waste Policy Act |
| OMB | Office of Management and Budget |
| ORNL | Oak Ridge National Laboratory |
| OST | Department of Energy’s Office of Secure Transportation |
| PA | performance assessment |
| PAIR | performance assessment inventory report |
| PARO | Public Access Records Office |
| PCN | planned change notice |
| PCR | planned change request |
| probability density function | |
| PE-Ci | plutonium equivalent curies |
| PEIS | programmatic environmental impact statement |
| PFLOTRAN | petascale reactive multiphase flow and multicomponent transport code |
| PHMSA | Pipeline Hazardous Materials Safety Association |
| PMDA | Plutonium Management and Disposition Agreement |
| PMR | permit modification request |
| POC | pipe overpack container |
| PRA | performance risk assessment |
| Pu | plutonium |
| Pub. L. | public law |
| QA | quality assurance |
| RCRA | Resource Conservation and Recovery Act |
| RH | remote-handled |
| RH-TRU | remote-handled transuranic |
| ROAR | Risk and Opportunity Analysis Report |
| ROD | record of decision |
| ROMP | risks and opportunities management plan |
| RTR | real-time radiography |
| SEIS | supplemental environmental impact statement |
| SNL | Sandia National Laboratories |
| SNM | special nuclear material |
| SPD | surplus plutonium disposition |
| SPD INV | surplus plutonium disposition inventory report |
| SRNS | Savannah River Nuclear Solutions, LLC |
| SRS | Savannah River Site |
| SSEB | Southern States Energy Board |
| SST | Safe Secure Transport |
| STD | Department of Energy Standard |
| Sv | sievert |
| TBD | to be determined |
| TDOP | 10-drum overpack |
| TMW | transuranic mixed waste |
| TRL | Technology Readiness Level (e.g., TRL-5) |
| TRU | transuranic |
| TRUPACT | TRansUranic Package Transporter |
| U | uranium |
| UO2 | uranium oxide |
| U.S. NRC | U.S. Nuclear Regulatory Commission |
| USACE | U.S. Army Corps of Engineers |
| VoR | volume of record |
| WAC | waste acceptance criteria |
| WDS/WWIS | Waste Data System/WIPP Waste Information System |
| WGA | Western Governors’ Association |
| WIPP | Waste Isolation Pilot Plant |
| WRAC | waste removal after closure |
| WUF | waste unit factor |
| ZPPR | Zero Power Physics Reactor |