| Acronym | Meaning |
| REV | Revision |
| SACS | SuPport Action Center |
| DDIS | Data Depository Index System |
| LF | Left Forward |
| VCD | Verification Control Document |
| ITE | Intersite Transportation Equipment |
| SEC | Source Evaluation Committee |
| SEPAP | Shuttle Electrical Power Analysis Program |
| MSO | Model For Spare(s) OPtimization |
| VOX | Voice Operated Transmitter (Transmission) |