International civil aviation organisation intergovernmental specialized agency associated with the United Nations (UN). Established in 1947 by the Convention on International Civil Aviation (1944), which had been signed by 52 states three years earlier in Chicago, the ICAO is dedicated to developing safe and efficient international air transport for peaceful purposes and ensuring a reasonable opportunity for every state to operate international airlines. The organization’s permanent headquarters are in Montreal [2]. The ICAO, whose membership includes virtually every state in the world, has several component bodies: an Assembly of delegates from all member countries that meets every three years, a Council of representatives from 33 member states, an Air Navigation Commission appointed by the Council for addressing technical matters, and various standing committees, including a Committee on Joint Support of Air Navigation Services and a Finance Committee. The five main sections of the Secretariat–the Air Navigation Bureau, the Air Transport Bureau, the Technical Co-operation Bureau, the Legal Bureau, and the Bureau of Administration and Services–provide technical and administrative assistance to the various national representatives. The ICAO’s activities have included establishing and reviewing international technical standards for aircraft operation and design, crash investigation, the licensing of personnel, telecommunications, meteorology, air navigation equipment, ground facilities for air transport, and search-and-rescue missions [1].