- DAC (Directorate of Civil Aviation) - Luxembourg
- Department of Civil Aviation Belize
- INAVIC (National Institute of Civil Aviation) - Angola
- CAO (Civil Aviation Organisation) - Iran
- DGCA (Directorate General of Civil Aviation) - Lebanon
- CAA (Civil Aviation Administration) - Hungary
- Supreme Civil Aviation Authority - Austria
- CAD (Civil Aviation Department) - Falkland Islands
- CAD (Civil Aviation Directorate) - Canada
- DCA (Department of Civil Aviation) - Maldives