It hasn't been done. In fact I would even go further and say that we've been asking for ten years now. I had been meeting with people in Transport Canada. I've asked for a policy statement, even a statement that just says this is a topic we should be pursuing, and we have not yet been able to get that. It's a refusal to even address that issue.
When the policy branch doesn't endorse this or encourage it, the regulatory branch is certainly not going to move ahead of it. It also holds up the rest of the government.
I've also talked to people in Natural Resources Canada, Aboriginal and Northern Affairs Canada, and Industry Canada, and the first question I always get asks what Transport Canada thinks about this. We're always back to the case that they won't say anything.