Perhaps I can start by clarifying the differences in the roles. Transport Canada is the regulator. It sets the regulations for railway operations in the country. For example, railway companies are required to have a railway operating certificate and a safety management system. It's up to Transport Canada to oversee that and make sure the railways are acting in accordance with the regulations, with the rules that have been set.
The Transportation Safety Board's role is to investigate reported accidents and incidents to identify safety deficiencies, causal and contributing factors and, where appropriate, make recommendations on things that can be done to improve rail safety. We are not a regulator in that sense nor an overseer. We're responding to occurrences.
With respect to railway safety, a lot of things have improved since the Lac-Mégantic tragedy in 2013—for example, the introduction of the railway operating certificate; the introduction of new, more explicit regulations for safety management systems and the introduction of fines. Those are all changes that Transport Canada has introduced. As a result of our recommendations coming out of Lac-Mégantic, there have been a number of improvements, for example, in tank-car standards for transportation of flammable liquids, notably crude oil; for the introduction of emergency response assistance plans and added rules to reduce the risk of runaway or uncontrolled movements. They've increased the frequency and the depth of audits and inspections of railway, so a lot's been done.
But there is still a lot to be done. That's reflected in our outstanding recommendations, as well as in our watch-list issue, which includes, among other things, following signal indications, and some sort of automatic train control system to slow down or stop the train if the crew doesn't respond appropriately. Fatigue in rail is on our watch-list, as well as safety management and oversight. As well, there's slow progress on addressing some outstanding TSB recommendations, so a lot of progress has been made, but a lot more can be done to further improve the safety of Canada's railways.