| Acronym | Meaning |
| INTER | Intermediate |
| HMPC | Hazardous Maintenance Procedures Code |
| D | Depot |
| DCN | Defense Communications Network |
| EDR | Equivalent Direct Radiation |
| ID | Interface Diagnostics |
| PBR | River Patrol Boat (river/roadstead Craft) |
| SCM | Software Configuration Management |
| AFC | Airframe Change (tdc 50) |
| COMM | Commercial |