Thank you.
I would say that our remarks will have to be confined to our issue, which is road salts. In that, I think the appropriate response is a voluntary code of practice, as has been worked out. I don't think a regulation can be sufficiently flexible to reflect the operating conditions, and the local topography, and environmental conditions to make it work.
I could envision that other substances might very well require an enforcement regulatory approach, but we're talking about a situation where you have millions of tonnes of a very low threat material. So it's really the question of where it gets concentrated, and does that concentration occur at a place where it is vulnerable to that kind of challenge.