ISO 3166

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Classification Systems

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BSP

ISO 3166 is the International Standard for country codes and codes for their subdivisions.

The purpose of ISO 3166 is to define internationally recognized codes of letters andlor numbers that can be used when referring to countries and subdivisions. Using codes saves time and avoids errors instead of using a country's name (which will change depending on the language being used). It consists of three parts: - ISO 3166.1, Codes for the representation of names of countries and their subdivisions - Part 1: Country codes: defines codes for the names of countries, dependent territories, and special areas of geographical interest. It defines three sets of country codes: 0 ISO 3166.1 alpha.2 - two-letter country codes which are the most widely used of the three, and used most prominently for the Internet's country code top.level domains (with a few exceptions, e.g., UK instead of GB for United Kingdom). 0 ISO 3166.1 alpha.3 - three.letter country codes which allow a better visual association between the codes and the country names than the alpha.2 codes. 0 ISO 3166.1 numeric - three.digit country codes which are identical to those developed and maintained by the United Nations Statistics Division, with the advantage of script (writing system) independence, and hence useful for people or systems using non.Latin scripts. - ISO 3166.2, Codes for the representation of names of countries and their subdivisions

Part 2: Country subdivision code: defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166.1. ISO 3166.3, Codes for the representation of names of countries and their subdivisions - Part 3: Code for formerly used names of countries: defines codes for country names which have been deleted from ISO 3166.1 since its first publication in 1974.

PSA Board Resolution: 

ISO 3166 Maintenance Agency (ISo 3166/MA) - Geneva, Switzerland

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N/A

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Other Classification Systems/Categorizations Used in the Philippine Statistical System