| Acronym | Meaning |
 | NRCS | Natural Resources Conservation Service |
| TSP | Thrift Savings Plan |
| PTO | Patent And Trademark Office |
| CPSC | Consumer Product Safety Commission |
| IAF | Inter-American Foundation |
| NLM | National Library Of Medicine |
| EBSA | Employee Benefits Security Administration |
| NEGP | National Education Goals Panel (defunct) |
| MMS | Minerals Management Service |
| RRB | Railroad Retirement Board |
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