Yes. Under the National Energy Board Act, the government has the power through the Governor in Council to designate an interprovincial power line as coming under federal regulation. This is an amendment to the act introduced I think in the early 1990s, but it's actually never been exercised. I guess we just haven't had the interprovincial power lines that would raise the issue since the amendments were made to the National Energy Board Act.
On April 16th, 2007. See this statement in context.