In May 2009, the southern Ontario based league was granted conditional approval by the Canadian Soccer Association as Canada's national Tier III pro soccer league. Toronto FC and Montreal Impact both previously had their academy clubs playing in the CSL. Toronto had the TFC Academy, in the First Division, and TFC Academy II in the Reserve Division. While Montreal had the Impact Academy in the First Division. The League's most recent clubs are Kingston FC, Niagara United, and SC Waterloo Region which joined the CSL in 2012, all moving up from the CSL Reserve Division.