Северная область
In the following years, the first-level administrative division of Russia kept changing. In 1930, the okrug was abolished, and the district was subordinated to the central administration of Northern Krai. In 1936, the krai itself was transformed into Northern Oblast. In 1937, Northern Oblast was split into Arkhangelsk Oblast and Vologda Oblast. In 1940, Bereznikovsky District was renamed Vinogradovsky District and remained in Arkhangelsk Oblast ever since.