| Acronym | Meaning |
 | NRPC | National Railroad Passenger Corporation (AMTRAK) |
| NIMA | National Imagery And Mapping Agency (replaced By NGA) |
| BARC | Beltsville Agricultural Research Center |
| GNMA | Government National Mortgage Association |
| POW/MP | Prisoner Of War/Missing Personnel |
| FFB | Federal Financing Bank |
| NLE | National Library Of Education |
| USMC | United States Marine Corps |
| USCCR | United States Commission On Civil Rights |
| NCHS | National Center For Health Statistics |
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