| ABA | Australian Broadcasting Authority |
|---|---|
| ADS | Authoritative Data Sources |
| AEA | Atomic Energy Authority (skr.) |
| ATC | Autodesk Authorised Training Centre (skr.) |
| BSA | Broadcasting Standards Authority |
| BSA | Building Services Authority |
| CAP | Centrally Authorised Products |
| CER | srbské pohorie |
| CPA | Coalition Provisional Authority |
| ČEČ | grécke pohorie |