| Acronym | Meaning |
| UCC | Universal Checkout Console |
| B/L | Baseline |
| H | AlH AlHenry (Si Unit) |
| NORMAL | LoadNormal Load Factor (g) |
| RPA | Request For Procurement Action (Authorization) |
| RTR | Rotor |
| CCU | Camera Control Unit |
| SG | LSSpace Ground Link Station |
| VR | Video Recorder |
| EVCS | Extravehicular Communications System |