| Acronym | Meaning |
| SSP | Space Shuttle Program |
| HA | Apogee Altitude |
| REV | Review |
| PV&D | Purge |
| EVO | Engineering Verification Order |
| SM | IASerial Multiplexer Interface Adapter |
| ORD | Orbital Requirements Document |
| MSVP | Master Shuttle Verification Plan |
| SCM | Subsystem Configuration Management |
| FCO | Final Checkout |