One of the reasons I say that the industrial carbon pricing regimes in Canada are in crisis is precisely because we don't have a particularly strong and effective regime of assuring the kind of equivalence that you're concerned about here. Certainly, Saskatchewan's failure to implement industrial carbon pricing and the most recent changes in Alberta to its TIER system are causes for concern. Most commentators would agree that both of those changes significantly weaken industrial carbon pricing in those provinces, relative to the federal benchmark.
Obviously, it's not my place to pronounce on equivalence, but in the upcoming carbon pricing review, it has to be front and centre. There's a need for strong and in-depth criteria to determine that equivalence and to ensure that all provinces are at the same level of stringency. Quebec is a particularly good example of that stringency.