These documents are unedited advance versions of ICAO publications as approved in principle by the Secretary General, which are rendered available to the public for convenience. The final edited versions may still undergo alterations in the process of editing. Consequently, ICAO accepts no responsibility of liability of any kind should the final texts of these publications be at variance from that appearing here.
​Technical Areas
AGA - Aerodromes and Ground Aids ATM - Air Traffic Management
AIM - Aeronautical Information Management ​CNS - Communications, Navigation and Surveillance
MET - Aeronautical Meteorology FS - Flight Safety
TA - Technical Assistance