If this is a practical question about how the no-fly lists work, each country implements its own no-fly list. The challenge that we have, and I think that was being addressed earlier, was that many flights in Canada that begin and end in Canada, fly over U.S. air space. That's one of the challenges. But if the flight doesn't go into U.S. air space, then the U.S. no-fly lists, in my understanding, are not relevant.
On February 15th, 2017. See this statement in context.