ISO 3166 is a three-part standard published by the International Organization for Standardization (ISO), and defines codes for the names of countries, dependent territories, and special areas of geographical interest, and their principal subdivisions (e.g., provinces or states).
| Section | Description |
|---|---|
| 1 | ISO 3166-1 defines three sets of country codes for the names of countries, dependent territories, and special areas of geographical interest. |
| 2 | ISO 3166-2 defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. |
| 3 | ISO 3166-3 defines codes for country names which have been deleted from ISO 3166-1 since its first publication in 1974. |
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