| Acronym | Meaning |
| ESA | Engineering SuPPort Assembly |
| SM/PM | System Management/Performance Monitor |
| BP | Boilerplate |
| SEP | Source Evaluation Panel |
| MSC | Manned Spacecraft Center (changed To JSC) |
| NPRV | Nitrogen Pressure Relief Valve |
| TARC | Test Article Specification |
| VAD | Vandenberg Addendum Document |
| PCF | Payload Control Facility |
| STD | Lfollows) |