| Acronym | Meaning |
| APCA | Air Pollution Control Association |
| ITVM | Integration |
| OO | Object Oriented |
| EPR | Electon Paragmagnetic Resonance |
| GTF | Ground Test Facility |
| I&T | Integration And Test |
| AWPG | Aviation Weather Products Generator |
| PDM | Pulse Duration Modulation |
| OCI | Ocean Color Imager |
| ARTCC | Air Route Traffic Control Center |