| Acronym | Meaning |
| DLR | Deutsches Zentrum Fr Luft- Und Raumfahrt (German |
| FRCP | Federal Rules Of Civil Procedure |
| NF | Norfolk Island (ISO 3166 Digram) |
| CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
| FO | Faroe Islands (ISO 3166 Digram; FIPS 10-4 Territory Code) -Force Operations (military) - Forward Observer - Frame Optional (military Symbology) |
| VUT | Vanuatu (ISO 3166 Trigram) |
| CCSCS | Consultative Committee For Space Data Systems |
| NTP | Network Time Protocol |
| RAMARK | RAdar MARKer |
| LASER | Light Amplification By Stimulated Emission Of Radiation (cf. Maser) |