International Civil Aviation Organization

Identity area

Type of entity

Corporate body

Authorized form of name

International Civil Aviation Organization

Parallel form(s) of name

  • Organisation de l'aviation civile international

Standardized form(s) of name according to other rules

Other form(s) of name

  • ICAO
  • OACI

Identifiers for corporate bodies

Description area

Dates of existence

1947-04-04 -


“The consequence of the studies initiated by the US and subsequent consultations between the Major Allies was that the US government extended an invitation to 55 States or authorities to attend, in November 1944, an International Civil Aviation Conference in Chicago. Fifty-four States attended this Conference [at the] end of which a Convention on International Civil Aviation was signed by 52 States. [The Convention] set up the permanent International Civil Aviation Organization (ICAO) as a means to secure international co-operation [for the] highest possible degree of uniformity in regulations and standards, procedures and organization regarding civil aviation matters. At the same time the International Services Transit Agreement and the International Air Transport Agreement were signed" (International Civil Aviation Organization, Foundation webpage).

An Interim Agreement was also signed at the Chicago Conference which established a Provisional International Civil Aviation Organization which existed from August 1945 to April 1947 at which point, with the 26th ratification of a member state, the ICAO formally came into existence (International Civil Aviation Organization, Foundation webpage).

“From the very assumption of activities of PICAO/ICAO, it was realized that the work of the Secretariat, especially in the technical field, would have to cover two major activities:

  • those which covered generally applicable rules and regulations concerning training and licensing of aeronautical personnel both in the air and on the ground, communication systems and procedures, rules for the air and air traffic control systems and practices, airworthiness requirements for aircraft engaged in international air navigation as well as their registration and identification, aeronautical meteorology and maps and charts. For obvious reasons, these aspects required uniformity on a world-wide scale if truly international air navigation was to become a possibility. Activities in these fields had therefore to be handled by a central agency, i.e. ICAO headquarters, if local deviations or separate developments were to be avoided;
  • those concerning the practical application of air navigation services and facilities by States and their coordinated implementation in specific areas where operating conditions and other relevant parameters were comparable.”

(International Civil Aviation Organization, Foundation webpage).


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Functions, occupations and activities

Mandates/sources of authority

Internal structures/genealogy

General context

Relationships area

Access points area


Control area

Authority record identifier

Institution identifier

Rules and/or conventions used


Level of detail

Dates of creation, revision and deletion

Created by AWT 20/08/2012.




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