| Acronym | Meaning |
| OBS | Operational Bioinstrumentation System |
| G&C | Guidance And Control |
| CPCR | Crew Procedures Change Request (Form 482) |
| OTLC | Orbiter Timeline Constraints |
| SSA | Space Suit Assembly |
| HAL/S | High Order Programming Language For Spacelab Usage |
| CFMF | Crip Flow Management Facility |
| IOC | Joint Operations Center |
| TERL | Test Equipment Readiness List |
| ESB | Essential Switching Box |