| Acronym | Meaning |
| MCS | Measurements Calibration System |
| PRB | Parachute Refurbishment Building |
| RO | Recovery Operations |
| PS | Prime Select |
| SOMS | Shuttle Orbiter Medical System |
| P&SM | Procurement And Subcontract Management |
| PRN | Pulse Range Navigation |
| RRT | Rendezvous Radar Transponder |
| GCTS | Ground Communication(s) Tracking System |
| L-P | Low Pressure |