CRTC regulations in Canada require stations to play a certain formula of releases that had Canadian artist content. If you are a reporting station in Canada you can find what releases contain CanCon content in the Player, Mobile Player and in emails.
CanCon in release emails
When you receive an email that contains CanCon, it will be marked with the maple leaf icon:
In the Player
In the Player, when browsing releases in gallery view, any releases with CanCon will have the maple leaf icon beside the album art.
in Release Information
When you click into the release, specific tracks that have CanCon will have the maple leaf ion.