| Acronym | Meaning |
 | DAFIF | Digital Aeronautical Flight Information File |
| RTS | See Entry |
| PIG | Pipeline Inspection Gauge |
| ACES | Aerolineas Centrales De Colombia |
| NCIS | National Criminal Intelligence Service (British) - Naval Criminal Investigative Service (U.S. Navy) |
| PYF | French Polynesia (ISO 3166 Trigram) |
| RPM | Red Hat Package Manager |
| INAS | International Near-Earth Asteroid Survey |
| PASR | Personnel Accounting And Strength Reporting |
| NLB | Non-Linear Battlefield |
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