After the Second World War the registry of the archive, which had been evacuated from Opava before the front, was taken back to the renewed Provincial Archives in Opava, where it was incorporated as part of the registry. Its first approximate arrangement occurred in 1956. The complex arrangement of the older parts of the archive registry occurred from the 1990s, and they were completed with the compilation of an inventory in 2012, which is available on http://www.archives.cz/zao/digitalni_archiv. During the most recent inventory, copies concerning the activity of the Reichsarchiv Troppau (Reichs Archives of Opava) gained from the Federal Archives in Berlin and the Regional State Archives in Litoměřice were included in the fonds.