| Acronym | Meaning |
| PB | Pushbutton |
| IITCS | Igloo Internal Thermal Control Section |
| PROP | Proportioning |
| GLS | Ground Launch Sequence (Sequencer) |
| ELS | Eastern Launch Site |
| VSTAG | Vandenberg Shuttle Turnaround AnalYsis Group |
| CRP | Configuration Requirements Processing |
| SOMS | Shuttle Orbiter Medical System |
| DFE | Data Flow Engineer |
| EPPS | Electrical Power/Pyro Sequential System |