Yes, I can. There was a Supreme Court decision, commonly referred to as the Marcotte decision, that ruled in a specific set of facts about foreign exchange fees and conversion fees, and whether those fees were portrayed in an appropriate way under both federal and provincial laws. That's a summary by a non-lawyer, a policy person. Following that, in part of that decision, the Supreme Court indicated that in certain circumstances provincial rules may apply, where they may not conflict with federal rules, and that the Parliament of Canada, the Government of Canada, should clarify the circumstances and the intent under which it expects its chartered banks to follow its regime.
On November 28th, 2016. See this statement in context.