| Acronym | Meaning |
| PDP | Preliminary Definition Plan |
| GUCP | Ground Umbilical Carrier Plate |
| GSSC | Ground Support Simulation Computer |
| GVO | Gaviota (TACAN Station) |
| CGP | Central Grounding Point |
| UCTA | Urine Collection Transfer Assembly |
| NASCOM | NASA Communications Network |
| IFR | Instrument Flight Rules |
| QAR | Quality Assurance Responsible/Witness |
| OPT | OPerational Pressure Transducer |