Convention on International Civil Aviation

Chicago Convention
Convention on International Civil Aviation
Signature of the Chicago Convention
Signed7 December 1944
LocationChicago, Illinois, United States (See Hilton Chicago#The Stevens Hotel last paragraph)
Effective4 April 1947
Condition26 ratifications
Parties193[1] (Cook Islands and all United Nations members except Liechtenstein)
DepositaryGovernment of the United States of America
LanguagesEnglish, French, Russian and Spanish

The Convention on International Civil Aviation, also known as the Chicago Convention, established the International Civil Aviation Organization (ICAO), a specialized agency of the United Nations charged with coordinating international air travel.[2] The Convention establishes rules of airspace, aircraft registration and safety, security, and sustainability, and details the rights of the signatories in relation to air travel. The convention also contains provisions pertaining to taxation.

The document was signed on December 7, 1944, in Chicago by 52 signatory states.[3] It received the requisite 26th ratification on March 5, 1947, and went into effect on April 4, 1947, the same date that ICAO came into being. In October of the same year, ICAO became a specialized agency of the United Nations Economic and Social Council (ECOSOC). The convention has since been revised eight times (in 1959, 1963, 1969, 1975, 1980, 1997, 2000 and 2006).[2]

As of March 2019, the Chicago Convention had 193 state parties, which includes all member states of the United Nations except Liechtenstein. The Cook Islands is a party to the Convention although it is not a member of the UN.[1] The convention has been extended to cover Liechtenstein by the ratification of Switzerland.[4]

  1. ^ a b "Signatories to the Convention" (PDF). International Civil Aviation Organization. 2019. Retrieved 5 June 2021.
  2. ^ a b "Convention on International Civil Aviation". International Civil Aviation Organization. Doc 7300. Retrieved 5 June 2021.
  3. ^ "The History of ICAO and the Chicago Convention". International Civil Aviation Organization. Retrieved 1 August 2024.
  4. ^ Switzerland made the following declaration upon ratification: "My Government has instructed me to notify you that the authorities in Switzerland have agreed with the authorities in the Principality of Liechtenstein that this Convention will be applicable to the territory of the Principality as well as to that of the Swiss Confederation, as long as the Treaty of 29 March 1923 integrating the whole territory of Liechtenstein with the Swiss customs territory will remain in force": Convention on International Civil Aviation: Treaty status.

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