| AoA | Analysis of Alternatives |
| CAPEX | capital expenditures |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act of 1980 |
| DFLAW | direct-feed low-activity waste |
| DOE | U.S. Department of Energy |
| DOE-EM | U.S. Department of Energy’s Office of Environmental Management |
| DOE-ORP | U.S. Department of Energy’s Office of River Protection |
| DOT | U.S. Department of Transportation |
| EIS | Environmental Impact Statement |
| EPA | U.S. Environmental Protection Agency |
| FBSR | fluidized bed steam reforming |
| FFRDC | federally funded research and development center |
| GAO | U.S. Government Accountability Office |
| HLW | high-level waste |
| IDF | Integrated Disposal Facility |
| IP | industrial package |
| LAW | low-activity waste |
| LLW | low-level waste |
| LSA | low-specific activity |
| NAS | National Academy of Sciences |
| NASEM | National Academies of Sciences, Engineering, and Medicine |
| NDAA | National Defense Authorization Act |
| NRC | Nuclear Regulatory Commission |
| OPEX | operations costs |
| RCRA | Resource Conservation and Recovery Act of 1976 |
| SLAW | supplemental low-activity waste |
| SNF | spent nuclear fuel |
| SoT | Statement of Task |
| SRNL | Savannah River National Laboratory |
| SRS | Savannah River Site |
| TPA | Tri-Party Agreement |
| TRU | transuranic waste |
| WA Ecology | State of Washington Department of Ecology |
| WCS | Waste Control Specialists |
| WRPS | Washington River Protection Solutions, Limited Liability Company |
| WTP | Waste Treatment and Immobilization Plant |