| Acronym | Meaning |
| AR | Argentina (FIPS 10-4 Country Code; ISO 3166 Digram) - Arkansas (postal Symbol) - Armour |
| ISAF | International Sailing Federation - International Security Assistance Force |
| YE | Yemen (ISO 3166 Digram) |
| GSS | Generic Security Services |
| CLEMARS | California Law Enforcement Mutual Aid Radio System |
| FOC | Full Operational Capability |
| IS | Icelandic Language (ISO 639-1 Code) |
| CUNY | City University Of New York (CUE-knee) |
| TMP | East Timor (ISO 3166 Trigram; Obsolete 2002) -Temporary |
| LIM | Limburgish Language (ISO 639-2 Code) |