| Acronym | Meaning |
| MA&T | Manufacturing Assembly And Test |
| CES | Control Electronics System |
| RMT | Remote |
| CPD | Crew Passive Dosimeter |
| TDRR | Test Data Recording And Retrieval |
| VIS | Visibility |
| GCC | Ground Control Center |
| HLDS | Hydrogen Leak Detection System |
| OL | Operational Left DSC Or MDM |
| FCOS | Flight Computer Operating System (Orbiter) |