| Acronym | Meaning |
| C | Carbon - Coulomb - One Hundred (in Roman Numerals) |
| AFRL | Air Force Research Laboratory |
| DTI | UK Department Of Trade And Industry |
| HL | Holding Line |
| GLC | Gas-liquid Chromatography |
| GLE | Irish Language (ISO 639-2 Code) |
| FRA | Federal Railroad Administration -France (ISO 3166 Trigram) |
| GLBA | Gramm-Leach-Bliley Act |
| WCL | World Confederation Of Labour |
| MRI | M?ori Language (ISO 639-2 Code) |