| Acronym | Meaning |
 | EBSA | Employee Benefits Security Administration |
| NSC | National Security Council |
| NSA | National Security Agency |
| ILAB | Bureau Of International Labor Affairs |
| NRPC | National Railroad Passenger Corporation (AMTRAK) |
| OPM | Office Of Personnel Management |
| SSS | Selective Service System |
| PHPPO | Public Health Practice Program Office |
| RA | Reserve Affairs |
| NCI | National Cancer Institute |
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