I can take a shot at that.
In response to this point, I think we have found that there have been some potential repeals that have quite clearly made sense. For example, in our forward regulatory plan, we're planning to remove the vinyl chloride release regulations. Those are regulations that have been in place for 22 years. The world has changed in those 22 years, and right now there's only one plant in Canada that is covered by those regulations. It's in Ontario. Ontario has a perfectly acceptable regulatory system there, so we decided there's really no value added to that regulation, and we've proposed its removal to the minister.
Similarly, we have a chlor-alkali mercury liquid effluent regulation. At the time that was introduced, it was a different situation. Right now there are no plants currently operating in Canada that are subject to that regulation.
So, we found regulations we could remove without any significant cost, in fact, without any cost at all to the environment.