We don't think it's necessary. Again, the difference between truck and rail.... Most companies have them, but simply depositing a piece of paper somewhere doesn't mean a whole lot unless it has teeth. I think that's part of the problem you are seeing on the rail side. Historically, what they've chosen to do on the trucking side is to introduce a comprehensive regulatory regime with real penalties, fines, and sanctions, which don't exist on the rail side. That's where the control comes in on the trucking side. I don't think having to deposit more paper necessarily means anything.
At the same time, if a trucking company is not performing up to snuff with respect to safety, what happens is that the company is identified by the provincial enforcement officers. They do a facility audit, and at that time they look for the safety management system of that trucking company. They'll say, “Look, you have to improve this”, or “You're not even following your own safety management system”, and the like. Again, the level of enforcement, on-road real-time enforcement, that exists in trucking is different from that in any other mode.
Again, I think it's an open question whether safety management systems should be regulated, but I don't know that they have worked particularly well on the rail side in the absence of the other types of enforcement activities.