| Acronym | Meaning |
 | OPIC | Overseas Private Investment Corporation |
| OPPTS | Office Of Prevention |
| FRS | Federal Reserve System; Federal Relay Service |
| CSB | Chemical Safety And Hazard Investigation Board |
| INS | Immigration And Naturalization Service (replaced By USCIS) |
| ILO | International Labour Organization |
| DAU | Defense Acquisition University |
| NIDDK | National Institute Of Diabetes And Digestive And Kidney Disease |
| GIPSA | Grain Inspection |
| OERI | Office Of Educational Research And Improvement (replaced By IES) |
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