What led to this particular bill is the constitutionality that wasn't available before as a result of court challenges. This is why we have the act now. And we do have the authority, as CTA does, to do so.
I just want to make sure that we're not missing anything here. This really is my last question, Mr. Chair.
Mr. Dalpé actually referred to environmental standards. I'm curious if there are any other effects that anyone sees from the shunting and the rail, besides noise, vibration, and smoke. Are there any other environmental concerns that any of the witnesses have?