The PRPPs aren't in force across the country yet. The only ones that are in place are in Quebec, and the uptake there is mandated for five or more. I'm not sure if that would answer your question. I believe that for the four other provinces, it's a technical federal issue that's holding them up. They have provincial buy-in already, but they're waiting for approval from the federal government. The other provinces have not put forth legislation yet.
On November 15th, 2016. See this statement in context.