The Administrative territorial unit type authority table (AT) is a controlled vocabulary which provides the various types of administrative territorial units within the Member States of the European Union. It is linked to the Administrative territorial unit table that provides the list of the subdivisions per country.
The categorization of these types is based on national official information and the Committee of the Regions of the European Union has provided the translations in all official languages of the European Union. The ISO 3166-2 standard has also been used. Where there are differences in the territorial unit types and the ISO code, the legal basis of the country concerned has taken precedence.
An administrative unit is defined for the purpose of administration with a certain degree of autonomy and is country-specific. The administrative unit refers to public administration for which the administrative law is applicable.
The administrative territorial unit types must not be confused with the Nomenclature of Territorial Units for Statistics (NUTS). The NUTS is delineated according to the population living in the territorial unit and is used in an economical/statistical environment. The administrative territorial unit types must not be confused with the jurisdiction territories designed for the competence area of Courts. In certain countries, the subdivisions may be the same for the administrative, economical, statistical and jurisdiction units.
This AT is maintained by the Publications Office of the European Union on the EU Vocabularies website.