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The ICAO Council adopts standards and recommended practices concerning air navigation, prevention of unlawful interference, and facilitation of border-crossing procedures for international civil aviation.

In addition, the ICAO defines the protocols for air accident investigation followed by transport safety authorities in countries signatory to the Convention on International Civil Aviation, commonly known as the Chicago Convention. See NTSB, TSB, AAIB, BFU, and BEA.

Its headquarters are in Montreal, Canada.

The ICAO should not be confused with the International Air Transport Association (IATA), a trade organization for airlines also headquartered in Montreal.

Both ICAO and IATA have their own airport and airline code systems. ICAO uses 4-letter airport codes, and 3-letter airline codesICAO Airline Codes are three-letter codes assigned by the International Civil Aviation Organization ( ICAO) to the world's airlines. These codes form the first three letters of a flight code. These have been issued since 1987. List of Codes A AAA : Ansett. IATA is scheduled to eventually switch its codes to the ICAO standard.

1 See also

• Air safetyDuring the 1920s, the first laws were passed in the USA to regulate civil aviation. Of particular significance was the Air Commerce Act 1926, which required pilots and aircraft to be examined and licensed, for accidents to be properly investigated, and fo

2 External link

• http://www.icao.int