| Acronym | Meaning |
| USCIS | U.S. Citizenship And Immigration Services |
| FLRA | Federal Labor Relations Authority |
| DPC | Domestic Policy Council |
| ROTC | Reserve Officer Training Corps |
| NCC | National Coordinating Center For Telecommunications |
| SSS | Selective Service System |
| U.N. | United Nations |
| IAEA | International Atomic Energy Agency |
| FMSHRC | Federal Mine Safety And Health Review Commission |
| NDU | National Defense University |