| Acronym | Meaning |
 | SIL | Silence |
 | CNIU | Communication/navigation Interface Unit |
 | AGFF | Frigate Research Ship (misc) |
 | AIVPFL | Anti-ice Valve Position Failure Left Engine |
 | RDBMS | Relational Data Base Management System |
 | CPF | Contractor Performance Factor |
 | MBTUMA | Mean Time Between Unscheduled Maintenance Actions |
 | ANSI | American National Standards Institute |
 | PD | Position Description |
 | NIPS | Naval Intelligence Processing Center Upgrade Program |