| Acronym | Meaning |
| MAPS | Multiple Aircraft Positioning System |
| API | Absolute Position Indication |
| MIDI | Musical Instrument Digital Interface |
| NODS | NASA Ocean Data System |
| APIP | Aircraft Produced Ice Particles |
| AMOS | Automatic Meteorological Observation System |
| TAP IR | Reactive Gases |
| AMC | Army Materiel Command |
| IPC | Instrument Processing Center |
| RAG | Resource Accounting Group |