Other environmental legislation has a formal concept of equivalency. Under the Canadian Environmental Protection Act, the federal government has the authority to stand down a regulation that has been promulgated under the act when entering into an agreement with another jurisdiction—whether a provincial, territorial, or an aboriginal government—that has in place rules that are equivalent to those under CEPA.
The government has chosen not to pursue the model of formal equivalency under this system because, as I explained earlier, when the federal government moved to impose pricing across Canada, we already had a situation in which we had four provinces with pricing in place and three very different systems, each of which had a broadly similar scope of application—each applied to the same set of emissions—but used different mechanisms and, as a result, caused there to be different carbon prices in the marketplace.
British Columbia has an explicit charge; Alberta has an explicit levy on fuel use—we know exactly what the carbon price is. For covered facilities in Ontario and Quebec there's no legally established carbon price. Instead there's a cap, which creates market pressure, which is then manifested in a market price that may or may not be exactly the same as what exists in British Columbia or Alberta.
We are not in a position to say that the carbon price throughout Canada must be x dollars, because it's not x dollars in those four jurisdictions, and it wouldn't make any sense to require it to be that exact price everywhere else. Instead, the federal government has provided the remaining nine jurisdictions with exactly the same flexibility to choose their own system. If they do a cap-and-trade system, it needs to align with certain characteristics to make it essentially as rigorous and robust as the Ontario and Quebec system. If they rely on an express charge, then we need to see that price at $10 to $50 per tonne.
That's a long-winded answer, but the bottom line is that there's no way, in a situation in which we already have different systems, to insist on one single price across Canada.