| Acronym | Meaning |
| MCS | Measurements Calibration System |
| OLSP | Orbiter Logistics Support Plan |
| PPB | Program Performance Baseline |
| QA | Quality Assurance |
| MED | Medical |
| VCB | Vertical Location Of The Center Of Buoyancy |
| OSS | OEX SuPport System |
| ESI | Electrical System Integration |
| MCP | Measurements Control Procedure |
| LGA | Low Gain Antenna |