| Acronym | Meaning |
 | ATF | Bureau Of Alcohol |
| TSI | Transportation Safety Institute |
| NRCS | Natural Resources Conservation Service |
| DHS | Department Of Homeland Security |
| NEI | National Eye Institute |
| NFA | National Fire Academy |
| OMM | Offshore Minerals Management Program |
| DEA | Drug Enforcement Administration |
| FEMA | Federal Emergency Management Agency |
| NASM | National Air And Space Museum |
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