ACRONYMS AND ABBREVIATIONS
Acronyms| AEC | U.S. Atomic Energy Commission | ALARA | as low as is reasonably achievable |
| CQ | conventional quality |
| DOE | U.S. Department of Energy |
| ECRB | Enhanced Characterization of the Repository Block |
| EIS | environmental impact statement |
| EPA | U.S. Environmental Protection Agency |
| ERDA | U.S. Energy Research and Development Administration |
| FEP | feature, event, and process |
| NRC | U.S. Nuclear Regulatory Commission |
| NWPA | Nuclear Waste Policy Act of 1982 |
| NWTRB | Nuclear Waste Technical Review Board |
| QL | quality level |
| TSPA | total system performance assessment |
| TSPA–SR | total system performance assessment for site recommendation |
| USGS | U.S. Geological Survey |
| VA | Viability Assessment |
| atm | atmosphere |
| BHN | Brinnel hardness number |
| cm | centimeter |
| Eh | redox potential |
| ft | foot |
| g | gram |
| gal | gallon |
| GWd | gigawatt day |
| hp | horsepower |
| Hz | Hertz |
| in. | inch |
| kg | kilogram |
| km | kilometer |
| kPa | kilopascal |
| kW | kilowatt |
| MTHM | metric tons of heavy metal |
| MTU | metric tons of uranium |
| L | liter |
| lb | pound |
| m | meter |
| M | molar |
| mg | milligram |
| mi | mile |
| min | minute |
| mL | milliliter |
| mm | millimeter |
| MPa | megapascal |
| mV | millivolt |
| MW | megawatt |
| Mw | moment magnitude |
| µm | micrometer (micron) |
| nm | nanometer |
| Pa | pascal |
| pCi | picocurie |
| pH | scale of acidity and alkalinity (hydrogen-ion concentration notation) |
| ppm | parts per million |
| psi | pounds per square inch |
| rem | roentgen equivalent man |
| s | second |
| W | watt |
| wt | weight |
| yr | year |