| Acronym | Meaning |
 | JPL | Jet Propulsion Laboratory |
| NGDC | National Geophysical Data Center |
| MEDPAC | Medicare Payment Advisory Commission |
| OSC | Office Of Special Counsel |
| RUS | Rural Utilities Service |
| FRA | Federal Railroad Administration |
| NEC | National Economic Council |
| FEB | Federal Executive Board |
| NVSS | National Vital Statistics System |
| USMC | United States Marine Corps |
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