The Mexico Regional Office was established in Mexico City on 15 February 1957. In June 2019, the Office moved to its present location. Its location has changed, as follows:
| | 15 February 1957 to 1 January 1973: | | Av. Chapultepec 540, Colonia Juarez, Mexico
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| | 2 January 1973 to 1 September 1996: | | Av. Thiers 251, 5th floor, Colonia Anzures, C.P. 11590, Mexico |
| | 2 September 1996 to 31 May 2019: | | Av. Presidente Masaryk No. 29, 3rd Floor, Col. Chapultepec Morales, C.P. 11570, Mexico
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| | 1 June 2019 to present: | | Calzada Mariano Escobedo 526, 2nd Floor Col. Anzures, C.P. 11590, Mexico |
as the operational and technical problems inherent in different parts of the world varied considerably, it was logical that the planning and implementation of the required ground services should be carried out on an area or regional basis - the geographical limits of which should be such as to encompass air route stages having a certain degree of homogeneity, and therefore entailing a somewhat uniform set of requirements; andplanning the requirements for air navigation facilities and services is done through consultation among a limited number of States, rather than in preference to planning on a world-wide basis. These consultations are carried out on an area basis and normally through regional air navigation meetings. The need to conduct the planning of the facilities and services required for the world-wide network of international air routes in a small number of areas of manageable proportions is evident.
• operational and technical problems varied• planning preferable at regional level• consultations done at regional air navigation meetings• planning impractical on a worldwide basis.
Air Transport functions, including States and international organizations of ICAO air transport policies and activities, and encouraging States to file statistics, to implement Annex 9 on facilitation, to submit replies to economic study questionnaires and to submit data for revision of the Manual of Airport and Air Navigation Facility Tariffs (Doc 7100).
Regional Bodies, where established, close co-operation with the regional bodies: African Civil Aviation Commission (AFCAC), European Civil Aviation Conference (ECAC), Latin American Civil Aviation Commission (LACAC), and co-ordination of interrelated work programmes to avoid duplication of effort and to ensure harmony in the development of the international air transport system as a whole.
Technical Co-operation functions, including the Regional Scholarship Programme and assistance in investigating fellowship applications; provision of advice on programming, including co-ordination within the region of requests for regional projects; briefing of newly-recruited Technical Co-operation experts.
Legal, obtaining current copies of air laws and regulations, as well as information on contemplated air legislation and regulations, from Contracting States; obtaining, on request, judicial information relating to aviation matters.
Aviation Security, encouraging, assisting, expediting, monitoring and following up all aspects of aviation security in accordance with ICAO policy, Standards, Recommended Practices and procedures.
General, reporting on implementation by States of Assembly and Council Resolutions regarding aviation security; reporting on aviation accidents and incidents to enable follow-up action by ICAO as may be required; the distribution of ICAO publications and documents in accordance with Headquarters policy; the holding of meetings at regional office locations, or other appropriate locations within the areas of general responsibility, the participation in press, television and radio interviews and the provision of lectures on ICAO activities; the follow-up with Contracting States, as required, on the collection of contributions and the attendance at meetings of other international organizations.