This is a different CSL than the rogue league. It's completely sanctioned by the Ontario Soccer Association.
The youth CSL is called the Central Soccer League and runs up to U18. www.cslsoccer.com I played in this league when I was in youth soccer. It's the competitive rep youth league for the GTA region (from Toronto in the west to about Peterborough in the east up to about Muskoka in the north). There are leagues for different regions in Ontario (SRSL - south, ERSL - east, WRSL-west).
Completely different from the Canadian Soccer League.