Summary: The UAE, represented by the General Civil Aviation Authority, is currently participating in the International Civil Aviation Organisation (ICAO) 12th Air Navigation Conference which is convened at the ICAO headquarter in Montreal, Canada.
http://acronyms.thefreedictionary.com/ICAO
ICAO Abbreviations. and Codes. Procedures for. Air Navigation Services. This edition incorporates all amendments. approved by the Council prior to 24 July 2010. and supersedes, on 18 November 2010, all previous editions of PANS-ABC (Doc 8400).
http://www1.atmb.net.cn/CD_web/UploadFile/2013052810480238.pdf
This is a list of airline codes. The table lists IATA's two-character airline designators, ICAO's three-character airline designators and the airline call signs (telephony designator). Historical assignments are also included.
https://en.wikipedia.org/wiki/Airline_codes
These codes are unique by airline, unlike the IATA airline designator codes (see section above). The designators are listed in ICAO Document 8585: Designators for Aircraft Operating Agencies, Aeronautical Authorities and Services.
https://en.wikipedia.org/wiki/Airline_codes
International transportation & c... 1  They use different airport codes because when the codes were created, at different times, they were for different purposes and for use over different communications media. Quora User is correct that the ICAO system is for operational matters, and the IATA system is for commercial matters.
https://www.quora.com/Civil-Aviation-Why-do-ICAO-and-IATA-use-different-airport-abbreviations-for-any-given-airport
You are encouraged to check the validity of the acronym from the source (see links below) before using the acronym for official use. If the acronym you are looking for is not here, you could try the following sources: CASR Dictionary (Volume 4 of Civil Aviation Safety Regulations 1998) AIP - GEN 2.2. ICAO Doc 8400.
https://www.casa.gov.au/about-us/standard-page/aviation-abbreviations-and-acronyms
(viii) ICAO Abbreviations and Codes (PANS-ABC) 18/11/10. e) that an abbreviation may represent grammatical variants of the basic signification where such application can be. made without risk of confusion and the desired grammatical form can be determined from the context of the. message.
http://www1.atmb.net.cn/CD_web/UploadFile/2013052810480238.pdf
The ICAO airline designator is a code assigned by the International Civil Aviation Organization (ICAO) to aircraft operating agencies, aeronautical authorities, and services related to international aviation, each of whom is allocated both a three-letter designator and a telephony designator.
https://en.wikipedia.org/wiki/Airline_codes
About us. Below are some useful aviation acronyms for general guidance and use in the aviation industry - note this is not a complete list of aviation acronyms. You are encouraged to check the validity of the acronym from the source (see links below) before using the acronym for official use. Version: February 2013.
https://www.casa.gov.au/about-us/standard-page/aviation-abbreviations-and-acronyms
The abbreviation system began with traditional railroad telegraphers' abbreviations for cities, which IATA standardized. In the current era, both ICAO and IATA communications are routed over the internet, each using dedicated interface programs that handle their legacy systems of abbreviation, acronyms and format.
https://www.quora.com/Civil-Aviation-Why-do-ICAO-and-IATA-use-different-airport-abbreviations-for-any-given-airport
icao stands for what
ICAO stands for International Civil Aviation Organization. ICAO stands for the International Civil Aviation Organization.