| Acronym | Meaning |
 | USMS | United States Marshals Service |
| ORD | Office Of Rare Diseases |
| TSO | TRICARE Support Office |
| AFDC | Aid To Families With Dependent Children |
| DAU | Defense Acquisition University |
| TDA | Trade And Development Agency |
| USFA | U.S. Fire Administration |
| NLM | National Library Of Medicine |
| BIA | Bureau Of Indian Affairs |
| NCS | National Communications System |
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