| Acronym | Meaning |
 | DNDO | U.S. Domestic Nuclear Detection Office |
| VFR | Visual Flight Rules |
| NARPV | National Association For Remotely Piloted Vehicles |
| ROU | Romania (ISO 3166 Trigram) |
| PFE | Permanent Forest Estate |
| HBCD | HexaBromoCycloDodecane |
| DU | Depleted Uranium -Dust (METAR Code) |
| RE | Rhenium |
| FQ | Baker Island (FIPS 10-4 Territory Code) - French Southern And Antarctic Territories (ISO 3166 Digram; Obsolete 1979) |
| JOA | Joint Operations Area |
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