State Regional Archive in Plzeň is directly controlled by the Ministry of the Interior of the Czech Republic. The administrative competence of the SOA v Plzni is defined by the territory of the Pilsen and Karlovy Vary Regions. The internal organizational units of SOA v Plzni are the State District Archives Domažlice (based in Horšovský Týn), Cheb , Karlovy Vary , Klatovy , Plzeň-jih(based in Blovice), Plzeň-sever (based in Plasy), Rokycany , Sokolov (based in Jindřichovice) and Tachov .