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Classification of objects of the administrative-territorial system of Ukraine (KOATUU) (Ukrainian: Класифікатор об'єктів адміністративно-територіального устрою України, КОАТУУ), was a national standardization system established by the State Committee for Technical Regulation and Consumer Policy on October 31, 1997,[citation needed] and went into effect on January 1, 1998.[1]
KOATUU was directly inherited from and replaced the old Soviet system SOATO of the Soviet standard system GOST, without major structural changes (although there were some nomenclatural modifications).[clarification needed] KOATUU is numbered as DK 014-97 in the system of classification and coding of technical-economical and social information in Ukraine (abbreviated as DSK TESI).
The classification is conducted by the Scientific Research Institute of Statistics of the State Statistics Committee of Ukraine. DK 014-97 (KOATUU) is planned to be integrated in the International Organization for Standardization and to follow the designated system for Ukraine, ISO 3166-2:UA.
Following the passage of laws on administrative reform on 17 July 2020, KOATUU became outdated and was deprecated. In response, the Ministry of Development of Communities and Territories developed a new system to replace KOATUU called the Codifier of Administrative Territorial Units and Territories of Territorial Communities, which was approved on 26 November 2020.[1]