| Acronym | Meaning |
| OSM | Office Of Surface Mining; Office Of Spectrum Management |
| MESH | Medical Subject Headings |
| ZIP (CODE) | Zone Improvement Plan |
| SEC | Securities And Exchange Commission; Space Environment Center |
| DARPA | Defense Advanced Research Projects Agency |
| INSS | Institute For National Strategic Studies |
| GPS | Global Positioning System |
| PRM | Bureau Of Population |
| BPHC | Bureau Of Primary Health Care |
| JEC | Joint Economic Committee |