Who set the standards for XXX?
ISO 3166-2:AS
ISO 3166-2:AS is the entry for American Samoa in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
International Organization for Standardization