 All 20 regions are represented by at least one division except for Piedmont and Aosta Valley which share 2 divisions.Veneto, Tuscany, Sicily, Lazio, Emilia-Romagna and Campania also have 2 divisions each, while the region of Lombardy has 3 divisions.After the regular season is completed, the first-placed team for each division is automatically promoted to Serie D.

Each division also admits one other team to participate in national playoffs that take place in late May and early June.