| Acronym | Meaning |
| RA | Radium |
| PAPI | Precision Approach Path Indicator |
| GOPG | GrGOPGGround Operations Planning Group |
| PCIN | Program Change Integration |
| CDA | Critical Design Audit |
| CTS | COMPuterized Training System |
| VSA | Verification Site Approval |
| PVD | Purge |
| FCO | Functional Checkout |
| SSD | System Summary Display |