Pollution prevention plans are one tool that we use. We don't use them in all cases.
There are numerous factors that go into deciding what kind of tool, including the seriousness of the issue. So, if you get it wrong, can you remedy the issue, or do you need to get it right in the first place? This would put you on the regulatory side of things. Another one is, what is the likely receptivity of the target audience? We don't throw out a P2 plan and hope that people comply. We generally talk to the affected parties and try to get a sense of whether there would be receptivity to the instrument. This, I guess, is one of the reasons they've been relatively effective. I think we've done a relatively good job in using them only when they're likely to be effective. They have been used for a range of issues, and they have been applied to a range of sectors in Canada.