| ABC | Australian Broadcasting Commission |
|---|---|
| AC | anterior commissure (skr.), komisúra v mozgu (lat.skr.) |
| AEC | Atomic Energy Commision (skr.) |
| ATC | Australian Telecommunications Commission |
| CCIR | Commité Consultatif International Radiocommunication, Medzinárodný poradný výbor pre rádiokomunikácie (franc.skr.) |
| CIE | Commission Internationale de l'Eclairage |
| COMP | Committee on Orphan Medicinal Products |
| DV | Diversity Immigrant Visa |
| ECA | Economic commision for Africa (skr.) |
| ECC | electronic communications committee (skr.) |