The International Civil Aviation Organization (ICAO) is governed by the Convention on International Civil Aviation, established during a conference in Chicago in November and December 1944. This agreement, often referred to as the Chicago Convention, includes all ICAO Contracting States as parties. In October 1947, ICAO became a specialized agency of the newly formed United Nations. The Chicago Convention outlines ICAO’s purpose, emphasizing that international civil aviation can foster friendship among nations but may also pose security threats if misused. It aims to prevent conflicts and promote cooperation, which is essential for global peace. Currently, ICAO has 191 Member States.
ICAO operates through an Assembly, a Council, and a Secretariat. According to ICAO, the Assembly, made up of representatives from all Contracting States, is its primary body. It convenes every three years to review ICAO’s work and set policies for the future. During these meetings, a budget for the next three years is also approved. The Council, elected by the Assembly for a three-year term, consists of 36 States. Members are selected based on their importance in air transport, contributions to air navigation facilities, and representation of major global areas. As the governing body, the Council guides ICAO’s operations, adopting Standards and Recommended Practices incorporated into the Convention.
The Council receives support from various committees, including the Air Navigation Commission for technical matters and the Air Transport Committee for economic issues. The Secretariat, led by a Secretary General, has five divisions: the Air Navigation Bureau, the Air Transport Bureau, the Technical Co-operation Bureau, the Legal Bureau, and the Bureau of Administration and Services. To ensure a truly international approach, ICAO recruits professionals from diverse geographical backgrounds. Additionally, ICAO collaborates closely with other UN organizations like the World Meteorological Organization (WMO) and the World Health Organization (WHO), along with non-governmental organizations such as the International Air Transport Association (IATA) and the Airports Council International (ACI).
ICAO is responsible for several key areas, including safety, registration, airworthiness, preventing economic waste, ensuring fair competition, and standardization in aviation law. For more detailed information about ICAO’s 19 annexes and related documents, refer to the article “ICAO Annexes and Doc Series.” Contracting States must notify ICAO of any differences from the standards and are encouraged to report deviations from Recommended Practices in the Annexes. It’s important to note that ICAO Standards do not prevent countries from developing their own, stricter national standards.









