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ICAO has acknowledged that "communications, or the lack thereof, has been shown by many accident investigations to play a significant role". [1] In 2003, the ICAO "released amendments to annexes of its Chicago Convention requiring aviation professionals involved in international operations to demonstrate a defined level of English language ...
Supplemental access control (SAC) is a set of security features defined by ICAO [1] for protecting data contained in electronic travel documents (e.g. electronic passports). SAC specifies the Password Authenticated Connection Establishment (PACE) protocol, which itself supplements and improves upon the Basic Access Control (BAC) protocol also ...
There also are standard transponder codes for defined situations defined by the International Civil Aviation Organization (marked below as ICAO). Transponder codes shown in this list in the color RED are for emergency use only such as an aircraft hijacking, radio communication failure or another type of emergency.
The International Civil Aviation Organization Public Key Directory (ICAO PKD) is a database maintained by the International Civil Aviation Organization holding national cryptographic keys related to the authentication of e-passport information. The ICAO PKD content is open to the public, and can be downloaded for free at https://download.pkd ...
"AIRCRAFT NATIONALITY MARKS, NATIONAL EMBLEMS AND COMMON MARKS" (PDF). International Civil Aviation Organization. 2023-06-01. Archived (PDF) from the original on 2023-07-22. ICAO (2012). Annex 7, Aircraft Nationality and Registration Marks (PDF) (6 ed.). International Civil Aviation Organization. p. 15. ISBN 9789292490119.
Flag of the ICAO. An aircraft type designator is a two-, three- or four-character alphanumeric code designating every aircraft type (and some sub-types) that may appear in flight planning. These codes are defined by both the International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA).
The manner in which aeronautical information is gathered and managed is governed by Annex 15 to the Convention on International Civil Aviation (ICAO Annex 15), which defines how an aeronautical information service shall receive and/or originate, collate or assemble, edit, format, publish/store and distribute specified aeronautical information ...
The ICAO document 9303 part 3 describes specifications common to all Machine Readable Travel Documents. The dimensions of the effective reading zone (ERZ) is standardized at 17.0 mm (0.67 in) in height with a margin of 3 mm at the document edges and 3.2 mm at the edge against the visual readable part.