| Acronym | Meaning |
| FCR | Flight Configuration Review |
| REM | Release Escape Mechanism |
| M&RF | Maintenance And Refurbishing Facility |
| FCOS | Flight Control Operational Software |
| M | ITTSE Mobile Lgor Tracking Telescope System |
| SRD | Shuttle Requirements Document |
| TU | Technical Utilization |
| IASS | Inverter/ATCS Support Structure |
| DUPLXR | Duplexer |
| DDC | Defense Documentation Center |