| Acronym | Meaning |
| HSL | Hardware Simulation Laboratory |
| D | Drag |
| PORCN | Production Oi-der Records Change Notice |
| COB | Communications Office Building |
| P/B | Pushbutton |
| SFACI | Software Flight Article Configuration Inspection |
| BP | C/DCountdown |
| CCB | Configuration Change Board |
| SCNP | Preliminary Specification Change Notice |
| PLS | Propellant Loading System |