| Acronym | Meaning |
| LOR | Level Of Repair |
| PROM | Programmable Read Only Memory |
| VS | Vertical Speed |
| CSE | Common Support Equipment |
| SCST | Submarine Combat System Trainers (21a Series) |
| PTEP | Prequalified Training Equipment Program |
| MMR | Multimode Receiver |
| RRR | Requirements Rational Report |
| FCC | Federal Communication Commission |
| AFDM | Medium Auxiliary Floating Dry Dock (non Self-propelled) |