| Acronym | Meaning |
 | NRC | Nuclear Regulatory Commission |
| USDA | United States Department Of Agriculture |
| NWTRB | Nuclear Waste Technical Review Board |
| NRO | National Reconnaissance Office |
| USAID | United States Agency For International Development |
| HRSA | Health Resources And Services Administration |
| HAB | HIV/AIDS Bureau |
| AFDB | African Development Bank |
| MMS | Minerals Management Service |
| OTT | Office Of Transportation Technologies |
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