ACRONYMS AND ABBREVIATIONS
| AMF | Air-Mass Fraction |
| CAM | Corrosion-Allowance Material |
| CRM | Corrosion-Resistant Material |
| CRWMS | Civilian Radioactive Waste Management System |
| DOE | U.S. Department of Energy |
| DSNF | Defense Spent Nuclear Fuel |
| EBS | Engineered Barrier System |
| ESF | Exploratory Studies Facility |
| EPA | U.S. Environmental Protection Agency |
| EWCD | East-West Cross Drift |
| EWDP | Early Warning Drilling Program |
| HLW | High-Level Waste |
| LA | License Application |
| LADS | License Application Design Selection |
| M&O | Management and Operating Contractor |
| NFE | Near-Field Environment |
| NFGE | Near-Field Geochemical Environment |
| NRC | Nuclear Regulatory Commission |
| NSNFP | National Spent Nuclear Fuel Program |
| NTS | Nevada Test Site |
| PMR | Process Model Report |
| SCC | Stress Corrosion Cracking |
| SR | Site Recommendation |
| SZ | Saturated Zone |
| TH | Thermal-Hydrologic |
| THC | Thermal-Hydrologic-Chemical |
| TSPA | Total System Performance Assessment |
| TSPA TBD | Total System Performance Assessment Technical Basis Document |
| TSPA-LA | Total System Performance Assessment-License Application |
| TSPVA-SR | Total System Performance Assessment-Site Recommendation |
| TSPA-SR/LA | Total System Performance Assessment-Site Recommendation/License Application |
| TSPA-VA | Total System Performance Assessment-Viability Assessment |
| UZ | Unsaturated Zone |
| VA | Viability Assessment of a Repository at Yucca Mountain (DOE 1998b) |
| WAPDEG | A computer software code developed to model long-term corrosion degradation of waste disposal containers in the potential repository. |
| 2-D | Two-Dimensional |
| 3-D | Three-Dimensional |