| Acronym | Meaning |
 | FRRID | Flight Readiness Review Item DescriPtion |
| SIS | Shuttle Interface Simulator |
| MMAS | Material Management Accounting (Accountability) System |
| ELINT | Electromagnetic Intelligence |
| MO | Move |
| HIM | Hardware Interface Module |
| GT | Greater Than |
| PID | Program Introduction Document |
| CHL | Certified Hardware List |
| FLC | Forward Load Control |
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