Under the pan-Canadian framework, the first ministers agreed to quite a few things, and I'll mention three. The first was to put in place carbon pricing throughout Canada. The second was to put in place a carbon price that goes to $50 in 2022, and then to conduct a review of the impacts of carbon pricing before 2022, with the purpose of determining where carbon pricing goes. In addition, they also committed to an interim review in 2020, precisely the two-year period you're talking about.
There's a commitment to undertake a review, and that will be an interjurisdictional review that will involve all of the provinces and territories and the federal government. That will provide findings of the impacts to date and recommendations going forward. As parliamentarians, it's always within your authority to amend legislation. Similarly, many of the details of the federal carbon pricing system will be in regulations, and those can also be amended.