| Acronym | Meaning |
| VO | Space Vehicle Operations (KSC Dir.) |
| PLTS | Precision Laser Tracking System |
| FCR | Flight Configuration Review |
| RAX | Remote Access Terminal |
| V/C | Velocity Counter |
| HA | Hazard Analysis |
| PEFO | Payload Effects Follow-on Study |
| MO | Manned Orbiter |
| VFO | Variable Frequency Oscillator |
| MAC | Maximum Allowable Concentration |