| Acronym | Meaning |
| PCCB | Program Configuration Control Board |
| SHTR | Shutter |
| IHTV | Interim Hypersonics Test Vehicle |
| PMIS | Personnel Management Information System |
| CSE | Configuration Switching EquiPment |
| GLC | Generator Line Contractor |
| SSPC | Spacelab Stored Program Command |
| R | Rankine |
| M | Mandatory |
| GCTS | Gas Component Test Stand |