[1] It was constituted by three geographic groups (North, Center and South) with 16 clubs each.
The winners of each group won promotion to the 1971–72 French Division 1.
The club with most points was crowned champion and awarded the trophy.
Meanwhile, all reserves teams were relegated at the end of the season, regardless of their final position, due to the creation of the Division 3, which would also serve as the top league for amateur clubs and the club's reserves sides.
[4] The season began on 23 August 1970 and ended on 12 June 1971.