| Acronym | Meaning |
 | UWS | User Work Station |
| CSL | Command Signal Limiter |
| SCMP | System Contractor Management Plan |
| RAMA | Recap And Movement Authorization |
| MRA | Mechanical Readiness Assessment |
| FBS | Firefighters Breathing System |
| CLDST | Closed Loop Dynamic Stability Test |
| TL | Thrust Level |
| ISC | Johnson Space Center (formerly MSC) |
| OSA | Operational Support Area |
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