| Acronym | Meaning |
| IAD | Interface Analysis Document |
| PA | Pad Abort |
| MCC | Mission Control Center (JSC) |
| HO | Hydrogen-OxYgen |
| GT&A | Ground Test And Acceptance |
| SDC | Software DeveloPment COmPuter |
| OAT | Operational Acceptance Test |
| MMES | MSFC Mated Element Systems |
| EMEC | Electromagnetic Effects Compatibility |
| VMF | Vertical Maintenance Facility |