The International Civil Aviation Organization is a UN body that develops international aviation standards.

The International Civil Aviation Organization is a UN body headquartered in Montreal. It plays a major role in international aviation by developing and promoting unified international standards for training, navigation, infrastructure, flight planning and other aspects of aviation.

Use this tag for questions about ICAO itself, e.g. membership, publications, legal authority. For questions about international aviation regulations and standards defined by ICAO, use instead.

For questions about regulations in specific countries or regulations defined by other bodies such as the FAA or EASA, use the more appropriate 'local' tag, e.g. , .

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