Explore the world of international civil aviation — from ICAO foundations and the 19 Annexes to member state responsibilities, safety standards, and sustainable aviation.
ICAO · IATA · ICAO SARPs
A comprehensive knowledge base covering international civil aviation standards, regulations, history, and the global framework that keeps air travel safe.
Trace the origins of international civil aviation from the 1944 Chicago Convention to ICAO's establishment in 1947 and its evolution to 193 member states.
Learn more →Detailed breakdown of all 19 Annexes to the Chicago Convention — from personnel licensing and airworthiness to meteorology and accident investigation.
Explore Annexes →Understand what every one of the 193 ICAO member states must do — safety oversight, licensing, airspace management, and implementing SARPs.
Read more →ICAO's Safety Management System framework, the State Safety Programme, and how the world achieves the safest form of mass transportation.
Read more →CORSIA carbon offsetting scheme, Sustainable Aviation Fuel (SAF), and ICAO's vision for net-zero carbon emissions by 2050.
Read more →Searchable reference of key aviation terms — NOTAM, METAR, SARPs, ATC, SIGMET, EFB, SMS, and hundreds more essential definitions.
Open Glossary →The International Civil Aviation Organization (ICAO) is a specialized agency of the United Nations established by the Convention on International Civil Aviation — the Chicago Convention — signed on December 7, 1944.
ICAO works with member states and aviation industry groups to develop international Standards and Recommended Practices (SARPs) which are adopted into national regulations, ensuring global harmonization of civil aviation.
Enhance global civil aviation safety through development and monitoring of SARPs.
Protect international civil aviation against acts of unlawful interference.
Ensure the economic development of international civil aviation in a cost-effective manner.
Minimize the adverse effect of global civil aviation on the environment.
Maintain the continuity of aviation operations during and after major disruptions.
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