| Acronym | Meaning |
| IMPAC | International Merchant Purchase Authorization Card |
| IDL | Interface Definition Language |
| FG | Fog (METAR Code) - French Guiana (FIPS 10-4 Territory Code) |
| MAGIC | Major Atmospheric Gamma-ray Imaging Cherenkov (telescope) |
| IAS | Image Assessment System |
| BH | Bahrain (ISO 3166 Digram) - Belize (FIPS 10-4 Country Code) |
| WVIAC | West Virginia Intercollegiate Athletic Conference |
| LCCP | Light Contingency Communications Package |
| ZAR | South African Rand (ISO 4217 Currency Code) - Zaire (ISO 3166 Trigram |
| DMU | Diesel Multiple Unit - A Method Of Connecting Self-propelled Railway Vehicles Together To Form A Train Under The Control Of One Driver. |