Transport committee  We don't have that kind of a registry. We work with others.

Transport committee  We work closely with our U.S. counterparts, including the Association of American Railroads, or AAR. They work with us on accounting for the changes made to the tank cars. We take care of providing oversight. Once regulations come into force, we have to ensure that, when cars are inspected, the changes are made and the cars are transporting the right dangerous goods.

Transport committee  There isn't one in Canada. The AAR is working with us to help us quantify the number of tank cars in the North American network and find out which companies own them. We are also trying to determine whether the cars are DOT-111, CPC-1232, or other types of tank cars.

Transport committee  We are continuing our studies on crude oil. Part of our crude oil research, which we published earlier this summer, looked at the different types of crude oil. We're continuing to do our exercise in terms of understanding other characteristics and behaviours.

Transport committee  Same thing.

Transport committee  Just to make sure I understand, chlorine is already identified and classified as a dangerous good. But we are continuing to study the behaviours of chlorine, for example, just to make sure our regulatory regime is appropriate.

Transport committee  Our national oversight program has prioritized our inspection of transloading facilities, so we already have it in place.

Transport committee  The first stage was completed last year, when we stopped using the most dangerous tank cars for transporting hazardous goods. We eliminated at least 5,000 of them. We did that thanks to one of our protection guidelines. As for the DOT-111 tank cars, when we published our regulations in May 2015, we estimated the number of those cars to be about 150,000 across North America.