You're quite right to point out that over 30 years ago a voluntary exclusion zone was put in place, for the reasons you mentioned. It speaks to the fact that there was a clear recognition at that time, which the United States agreed with, that waters in the northern part of B.C.—and I'm talking about the Dixon Entrance, Hecate Strait, Queen Charlotte Sound, waters around Haida Gwaii—were extremely sensitive, ecologically speaking. I'm proud of the fact that the exclusion zone for tanker traffic, as you say, coming from Valdez has been respected, and there have not been any incidents since then.
This formalizes, as you point out, something that was already in place. It also puts it into legislation and specifically identifies the ports along the coast as being places where tankers cannot come in or leave with the purposes of shipping certain kinds of crude and persistent oils. In a way it's the formalization, but it's also a legalization of it, which is something that we undertook to do in 2015.