Yes, they do. There's a trigger in the Canadian Environmental Assessment Act's designated project regulations that says the power line has to be 345 kilovolts and 75 kilometres of new right of way before it becomes a CEAA-designated project. But even in projects that don't meet the CEAA designation, we would apply the same scrutiny to the environmental effects as we would to any other.
On October 18th, 2017. See this statement in context.