| Acronym | Meaning |
| IED | Interacting Equipment Documents |
| VOR | VHF Omnidirectional Radio Range |
| EOC | End Of Contract |
| OL | Operational Left DSC Or MDM |
| DBGMP | DBPDesign Baseline Program |
| MTBD | Mean Time Between Demand |
| CPCR | Crew Procedures Change Request (Form 482) |
| STA | Structural Test Article |
| MSEC | Master Separation Events Controller |
| SSPO | Space Shuttle Program Office |