| Acronym | Meaning |
| CAR | Certification Approval Request |
| JED | Julian Ephemeris Data |
| S/SYS | Subsystem |
| SSFGSS | Space Shuttle Flight And Ground System Specification |
| TRSD | Test Requirements Specification Document |
| VDD | Version Description Document |
| PCR | Project Control Room |
| STRUC | Structure |
| MSC | Manned Spacecraft Center (changed To JSC) |
| FVV | Facility Verification Vehicle |