| Acronym | Meaning |
| CPE | I Computer Program End Item |
| LMG | Left Main Gear |
| SIS | Software Implementation Specification |
| NVR | No Voltage Release |
| M&R | Maintenance And Refurbishment |
| CIB | Change Implementation Board |
| SI | International System Of Units (ISU Preferred) |
| VLPS | Vandenberg Launch Processing System |
| SADEC | Stand-Alone Engine Simulator |
| VTX | Vertex |