Twenty-eight regional champion teams participated at the promotion play-off to 1952 Divizia B.
The twenty-eight teams were divided into four groups of seven each, based on geographical criteria, with one team received a bye to second round.
The promotion play-off was played in eliminatory rounds over two-legs and the fixtures ending in a tie was replayed in a third game on neutral grounds. The winners of each groups were promoted.
^ abc"Campionatul de calificare Divizia B" [Divizia B qualification championship]. Anuarul Sportiv. pp. 90–91. Retrieved 18 November 2023 – via adt.arcanum.com.(in Romanian)