| Acronym | Meaning |
 | SLSDC | Saint Lawrence Seaway Development Corporation |
| PHPS | Public Health Prevention Service |
| FRS | Federal Reserve System; Federal Relay Service |
| OFM | Office Of Financial Management |
| ORA | Office Of Research And Applications |
| SSS | Selective Service System |
| OAT | Office For The Advancement Of Telehealth |
| NACIC | National Counterintelligence Center |
| USAF | United States Air Force |
| OFHEO | Office Of Federal Housing Enterprise Oversight |
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