The following acronyms and abbreviations are commonly used throughout the U.S. Department of the Interior's (DOI Natural Resource Damage Assessment and Restoration Program (NRDAR Program).
| AO | Authorized Official |
| AP | Assessment Plan |
| APA | Administrative Procedure Act of 1946 |
| AR | Administrative Record |
| ARPA | Archeological Resources Protection Act of 1979 |
| AUSA | Assistant United States Attorney |
| BIA | Bureau of Indian Affairs |
| BLM | Bureau of Land Management |
| CAA | Clean Air Act |
| CCMP | Comprehensive Conservation and Management Plan |
| CCP | Comprehensive Conservation Plan |
| CC&Rs | covenants, conditions, and restrictions |
| CD | Consent Decree or compact disk |
| CE | categorical exclusion |
| CEQ | Council on Environmental Quality |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act of 1980 |
| CERCLA Rule | CERCLA Natural Resource Damage Assessments |
| CFR or C.F.R | Code of Federal Regulations |
| COR | Contacting Officer's Representative |
| Corps | U.S. Army Corps of Engineers |
| COTR | Contracting Officer's Technical Representative |
| CRIS | Court Registry Investment System |
| CWA | Clean Water Act (same as FWPCA) |
| CWAP | Clean Water Act Plan |
| CZMA | Coastal Zone Management Act of 1972 |
| DEIS | Draft Environmental Impact Statement |
| Department, DOI, or Interior | U.S. Department of the Interior |
| DM | Departmental Manual |
| DOA | United States Department of Agriculture |
| DOJ | United States Department of Justice |
| EA | Environmental Assessment |
| EFT | electronic funds transfer |
| EIS | Environmental Impact Statement |
| ELIPS | Electronic Library of Interior Policies |
| EO | Executive Order |
| EPA | U.S. Environmental Protection Agency |
| ESA | Endangered Species Act of 1973 |
| FACA | Federal Advisory Committee Act of 1972 |
| FAQs | frequently asked questions |
| FEIS | Final Environmental Impact Statement |
| FLPMA | Federal Land Policy and Management Act of 1976 |
| FONSI | Finding of No Significant Impact |
| FR | Federal Register |
| FS | USDA Forest Service/U.S. Forest Service |
| FTE | full-time equivalent |
| FWCA | Fish and Wildlife Coordination Act |
| FWPCA | Federal Water Pollution Control Act (same as CWA) |
| FWS or Service | U.S. Fish and Wildlife Service |
| FY | fiscal year |
| GPRA | Government Performance Results Act of 1993 |
| HEA | Habitat Equivalency Analysis |
| H.J.RES. | House Joint Resolution (it becomes law if passed by both the House & Senate and approved by the President). |
| H.R. | House of Representatives and designates a measure as a bill (it becomes law if passed by both the House & Senate and approved by the President). |
| IRS | Internal Revenue Service |
| LAO | Lead Authorized Official |
| LAT | Lead Administrative Trustee |
| MBTA | Migratory Bird Treaty Act of 1918 |
| MMPA | Marine Mammal Protection Act of 1972 |
| MOA | Memorandum of Agreement |
| MOU | Memorandum of Understanding |
| MPA | Marine Protected Areas |
| MPRSA | Marine Protection, Research, and Sanctuaries Act of 1972 |
| NAGPRA | Native American Graves Protection and Repatriation Act of 1990 |
| NBC | National Business Center |
| NCP | National Oil and Hazardous Substances Pollution Contingency Plan or National Contingency Plan |
| NEPA | National Environmental Policy Act of 1969 |
| NHPA | National Historic Preservation Act of 1966 |
| NMFS | National Marine Fisheries Service |
| NOA | Notice of Availability |
| NOAA | National Oceanic and Atmospheric Administration |
| NOI | Notice of Intent |
| NPDES | National Pollutant Discharge Elimination System |
| NPFC | National Pollution Funds Center |
| NPL | National Priorities List |
| NPS | National Park Service |
| NRD | natural resource damage |
| NRDA | natural resource damage assessment |
| NRDAR | natural resource damage assessment and restoration |
| NRHP | Natural Register of Historic Places |
| OEPC | Office of Environmental Policy and Compliance |
| OPA | Oil Pollution Act of 1990 |
| OPAC | On-Line Payment and Collection |
| OSHA | Occupational Safety and Health Administration |
| OSLTF | Oil Spill Liability Trust Fund |
| PCBs | polychlorinated biphenyls |
| PL or P.L. | Public Law (designated by the number of the Congress and the order in which it is enacted). |
| PMB | Assistant Secretary - Policy, Management and Budget |
| PMP | Project Management Plan |
| PRP | Potentially Responsible Party (can be substituted for Responsible Party [RP] as used in the OPA) |
| PSRPA | Park System Resource Protection Act |
| RCDP | Restoration and Compensation Determination Plan |
| RCRA | Resource Conservation and Recovery Act of 1976 (same as SWDA) |
| Reclamation | Bureau of Reclamation |
| Refuge System | National Wildlife Refuge System |
| Restoration Program | Natural Resource Damage Assessment and Restoration Program |
| RHA | Rivers and Harbors Act of 1899 |
| ROD | Record of Decision |
| RP | Restoration Plan (or Responsible Party as used in the OPA) |
| RPM | Remedial Project Manager |
| SARA | Superfund Amendments and Reauthorization Act of 1986 |
| Secretary | Secretary of the U.S. Department of the Interior/ Secretary of the Interior |
| SEP | Supplemental Environmental Project |
| SHPO | State Historic Preservation Officer |
| SIP | State Implementation Plan |
| SWDA | Solid Waste Disposal Act (same as RCRA) |
| THPO | Tribal Historic Preservation Officer |
| U.S. | United States |
| U.S.C. or USC | United States Code (compilation of all current Federal laws, arranged under 50 subject titles). |
| USCG | United States Coast Guard |
| USGS | U.S. Geological Survey |