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The league comprises 108 teams (6 groups with 18 teams each). Over the course of a season, which runs annually from September to the following June, each team plays twice against the others in the league, once at 'home' and once 'away'. Three points are awarded for a win, one for a draw and zero for a loss. The teams are ranked in the league table by points gained. In the event that two or more teams finish the season equal in all these respects, teams are separated by head-to-head points, then head-to-head goal difference, then head-to-head goals scored, then goal difference and then goals scored.
At the end of the season, the first teams of the groups will be promoted to Primera Catalana, while the teams placed 2-3 in the six groups will play a promotion play-off to determine another six promotions. The last five teams in each group will be relegated to Tercera Catalana