| Acronym | Meaning |
| EVMU | Extra Vehicular Mobility Unit |
| HL | Heel Line |
| SOMS | Shuttle Orbiter Medical System |
| CC | Chief Counsel (KSC Directorate) |
| RPV | Remotely Piloted Vehicle |
| KHB | KSC Handbook |
| RL | Return Link |
| RSDP | Remote Site Data Processor |
| COQ | Certificate Of Qualification |
| T/R | Transmitter/Receiver |