Icao:International Civil Aviation Organization Official The website is a specialized agency of the United Nations, whose purpose and objectives are to develop the principles and techniques of international navigation and to promote the planning and development of international air transport. To ensure the safe and orderly development of international civil aviation worldwide.

The International Civil Aviation Organization is headquartered in Montreal, Canada. The ICAO, headquartered in Montreal, Canada, sets international air transport standards and regulations and is the medium for cooperation among the 185 contracting states in the field of civil aviation.

ICAO's main tasks are: to set international aviation and safety standards, to collect, review and publish aviation information, and also to act as a tribunal to resolve any disputes between member states in relation to international civil aviation, to prevent economic waste caused by unreasonable competition, and to improve flight safety. With the cooperation of member countries, the organization has gradually established a model of meteorological services, traffic control, communications, wireless telecommunication platforms, organization of search and rescue and other facilities necessary for flight safety.