I could add something on that.
We have an unwritten understanding with Environment Canada to harmonize our fuel specifications with those of the U.S. We had a slight difference with the sulphur. We went a little bit faster because between the two U.S. dates we had an interim measure, which threw off our availability to bring imports in from anywhere in the States. Generally, it's an agreed-upon principle, and it's supported by NRCan, knowing that the more open the border is, the more transparent the prices are going to be, and the more competitive the market will be for the Canadian citizens. We've been pushing for that, and it's a very important part of our understanding with Environment Canada.