Law, tax and authorities
ICAO
Abbreviation for International Civil Aviation Organization
In short and in plain language
The ICAO is a United Nations body for air travel.
It sets out how passports are built so that a machine can read them.
It also says how to replace special letters in a name. This can be a model for other programs.
Definition
The ICAO is the International Civil Aviation Organization, a specialised agency of the United Nations. Among other things, it specifies how machine-readable passports are structured. Its recommendations on transliterating names can serve as a model when a system replaces special characters.