| Acronym | Meaning |
 | IOB | InPut/Output Box |
| CM | Crew Module |
| SOCH | Spacelab Orbiter Common Hardware |
| SRH | Subsystems Requirements Handbook |
| BBC | Before Business Clearance |
| SPF | Single Point Failure |
| IP | Instructor Pilot |
| ISC | Johnson Space Center (formerly MSC) |
| CO | Cargo Operations (KSC Directorate) |
| CICU | Communication Interface Control Unit |
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