| Acronym | Meaning |
 | IUSS | Integrated Undersea Surveillance System - Integrated Unit Simulation System - International Union Of Soil Science |
| NI | Nicaragua (ISO 3166 Digram) - Nigeria (FIPS 10-4 Country Code) |
| RTBF | Radio-T?l?vision Belge De La Communaut? Fran?aise |
| JOR | Jordan (ISO 3166 Trigram) |
| QV | Quod Vide (Latin Which See) |
| SURTASS | Surveillance Towed Array Sensor System |
| NORAD | North American Aerospace Defense Command |
| BAA | British Airport Authority |
| AFG | Afghanistan (ISO 3166 Trigram) |
| HR | Croatia (FIPS 10-4 Country Code; ISO 3166 Digram) -Harvard Revised Star Catalogue - Human Resources |
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