| Acronym | Meaning |
| STTWG | Submarine Training/trainer Working Group |
| PTD | Provisioning Technical Documentation |
| TPD | Test Program Disk |
| SW | Switch |
| DDN | Design Decision Notice |
| XMIT | Transmit |
| TR | Transformer Rectifier |
| ACE | Acquisition Career Enhancement |
| SMILS | Sonobuoy Missile Impact Location System |
| PMS | Program Management System |