| Acronym | Meaning |
| NCS | National Communications System |
| FASAB | Federal Accounting Standards Advisory Board |
| CRS | Congressional Research Service; Community Relations Service |
| CCC | Commodity Credit Corporation |
| NPOESS | National Polar-orbiting Operational Environmental Satellite System |
| MSEL | Materials Science And Engineering Library |
| USSC | United States Sentencing Commission |
| PUMS | Public Use Microdata Samples |
| TSI | Transportation Safety Institute |
| OTJ | Office Of Tribal Justice |