The Canadian Radio-television and Telecommunications Commission says AOV XXX Action Clips and AOV Maleflixxx may not be airing enough Canadian content or closed captioning.
The X-rated specialty channels are supposed to air 35 per cent Canadian programming over the broadcast year and 90 per cent of its content should have captioning.
As part of proposed licence renewals, the commission plans to hear evidence on the apparent non-compliance.
It also has questions about the channels' ownership structure.
Possibilities include revocation of the licences or renewals for shorter periods.