| Acronym | Meaning |
 | ACDA | United States Arms Control And Disarmament Agency |
| ARS | Agricultural Research Service |
| FEDIX | Federal Information Exchange Inc. (ceased Operation 7/3/02) |
| COPS | Office Of Community Oriented Policing Services |
| FRA | Federal Railroad Administration |
| EDA | Economic Development Administration |
| SAMHSA | Substance Abuse And Mental Health Services Administration |
| NIDDK | National Institute Of Diabetes And Digestive And Kidney Disease |
| DINFOS | Defense Information School |
| NOAA | National Oceanic And Atmospheric Administration |
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