| Acronym | Meaning |
 | PRC | Postal Rate Commission |
| RECD | Rural Economic & Community Development (replaced By RD) |
| NIST | National Institute Of Standards And Technology |
| FLRA | Federal Labor Relations Authority |
| HAC | Health Administration Center |
| APHIS | Animal And Plant Health Inspection Service |
| GIS | Geographic Information Systems |
| FAR | Federal Acquisition Regulation |
| NLM | National Library Of Medicine |
| USFA | U.S. Fire Administration |
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