| Acronym | Meaning |
| U | Underfloor |
| OMRF | Orbiter Modification And Refurbishment Facility |
| FPS | Feet Per Second |
| TEMS | Transport Environment Monitoring System |
| TCR | Thermal Concept Review |
| BSRM | Booster Solid Rocket Motor |
| LID | Logistics Identification Document |
| TB | Toggle Buffer |
| OMPR | Operational Maintainability Problem Reporting |
| PETS | POCC Experiments Timeline System (GDSD And Spacelab |