 On January 29, 1935 the district was transferred to Tver Oblast, and on March 5, 1935 it was renamed Novokarelsky District.On July 9, 1937 it was transferred to Karelian National Okrug, a Tver Karelians autonomy.On February 7, 1939 the okrug was abolished, and the district was subordinated directly to Kalinin Oblast.