| Acronym | Meaning |
| COIM | Checkout Interpreter (Software) Module |
| VAN | USNS Vanguard (STDN) |
| OTK | Oxidizer Tank |
| FAA | Federal Aviation Administration |
| PSG | Power Subsystem Group |
| RESVR | Reservoir |
| FLR | Flare |
| C&T | Communications And Tracking |
| CRP | Configuration Requirements Processing |
| SESL | Space Environmental Simulation Laboratory |