| Acronym | Meaning |
| ORT | Orbit Readiness Test |
| CMAO | Contract Management Assistance Officer |
| MMAS | Material Management Accounting (Accountability) System |
| GRN | Green |
| CRYO | Cryogenic |
| OMBUU | Orbiter Midbody Umbilical Unit |
| USBE | Unified S-Band Equipment |
| PRCB | ProgramRequirementsChangeBoard |
| PSS | Payload Specialist Station |
| MEIU | Main Engine Interface Unit |