I was learning from my colleague here, Mr. Moffett. I will say, though, that we have assessed certain chemicals that are in commerce...highly hazardous, relatively well managed, with good stewardship practices in place. Hence there is not that exposure. You'll notice on certain outcomes of our risk assessments we've identified that, and we've said, “Okay, we're good with the way this use is, or this activity is. We will apply the significant new activity provisions of the act to that substance so if it is used for anything else, you have to notify us and we will evaluate that use.”
Another mechanism that's used is our DSL, so an inventory update for substances on the DSL. Under the CMP, we've operationalized that now; every four years we go about doing it. In the past two rounds, with any substance that we've assessed that we want to see how the use pattern of that substance, or the commercial status of that substance evolves over time, we subject it to that, and that way we're able to monitor it.