| Acronym | Meaning |
| HAP | Hardware Allocation Panel |
| IGDS | Iodine Generating And Dispensing SYstem |
| OA | Office Of Applications (now OSTA) |
| OAT | Overall Test |
| IPS | IRL Initiating Reference Letter |
| GN | GaGN Gain |
| BRS | Bottom Right Side |
| T. | B.Toggle Buffer |
| D/A | Digital To Analog |
| CARID | Customer Acceptance Review Item Disposition |