It features 16 teams across the country that compete for the top two positions in the competition which at the end of the season allows them promotion to the Botola.
Each season as well, the 3 bottom teams are all relegated to the third-level, Division Nationale.
IR Tanger and MA Tétouan are the most successful clubs in the competition with 6 coronations for each.
The Moroccan national championship was run under the auspices of three federations from 1915 to 1917 (USFSA - CR Maroc), 1917 to 1921 (Fédération Marocaine des Sports Athlétiques), and 1921 to 1957 (Moroccan League of Association Football) during the French Protectorate in Morocco.
The clubs who placed first and second in each of the division's two regions—the Chaouia League and the Sultanate League—then advanced to the semi-finals, where a single champion and his runner-up would face off.