High Quality Content by WIKIPEDIA articles! Districts (Serbian: Окрузи, Okruzi), officially called administrative districts (управни окрузи, upravni okruzi) are the administrative units of Serbia, comprising several municipalities and/or cities each. They are defined by the Government of Serbia`s Enactment of 29 January 1992. Districts are regional centers of state authority and they do not have any form of self-government. They run affairs in the name of the Government.