The main purpose of Doc 9626 (Third Edition - 2018), Manual on the Regulation of International Air Transport, is to meet an ever-increasing need for a comprehensive and objective source of information about the many facets of this dynamic activity.

This manual both complements and supplements Doc 9587​, Policy and Guidance Material on the Economic Regulation of International Air Transport, which is a compendium of all the formal policies and guidance adopted by ICAO in this field (such as Assembly resolutions, Council decisions, and conclusions and recommendations of air transport conferences).