Geographical distribution of 2006-07 Serie C1 teams. Serie C1/A teams are depicted with red dots, whereas Serie C1/B ones were represented with yellow.
The2006–07 Serie C1 was the twenty-ninth edition ofSerie C1, the third highest league in theItalian football league system. It was divided into two phases: theregular season, played from 3 September 2006, to 13 May 2007, and the playoff phase. Once the regular season was over teams placed 2nd to 5th entered aplayoff to determine the second team in each division to be promoted to Serie B. At the same time, teams placed 14th to 17th entered aplayout for the right to remain in Serie C1 the following season.
As usual, Serie C1 was composed by two divisions, whose teams were divided geographically. Division C1/A was mainly composed byNorthern Italy teams, whereas Division C1/B included mostlyCentral andSouthern Italy teams. No teams from the major islands ofSardinia orSicily took part in the 2006–07 Serie C1, as the only two eligible to participate in it,Gela andSassari Torres, were both omitted due to financial troubles.
Teams finishing first in the regular season, plus one team winning the playoff round from each division were promoted toSerie B; teams finishing last in the regular season, plus two relegation playoff losers from each division were relegated toSerie C2. In all, four teams were promoted to Serie B, and six teams were relegated to Serie C2.