Again, I would make a bit of a distinction between the NAFTA process, which is a legally binding process engaging the three governments, and the discussions that take place in the SPP. The intention of the SPP was not to replace the NAFTA or to replace other processes. So the SPP, in and of itself, is not the place where we would negotiate new obligations in the trade area.
My colleague Paul might want to comment a little bit on what they're doing in terms of the NAFTA and in looking at potential areas where they may be building on the commitments we've already made.