| Acronym | Meaning |
| CLG | Ceiling |
| SCN | Specification Change Notice |
| NVPOWG | NASA/VAFB Payload Operations Working Group |
| SW | Software (SFTWE Preferred) |
| PRC | PlanningResearchCorporation |
| PD | Preliminary Design |
| SP | Static Pressure |
| DDU | Display Driver Unit |
| PACE | Prelaunch Automatic Checkout Equipment |
| IOC | Initial Operational Capability |