I doubt the U.S. will let Canada get out of step with our policies but if you could, it would be a useful thing to pressure the administration or FDA whichever is being so difficult to get off their butts.
They have forced us to be ahead of their policies, and then they let some protectionist group have the power to be contradictory in proven science. that is where the USDA has gone wrong.
The food safety system in the US has been hijacked by a protectionist group that will have a court challenge to everything that is proposed. Sounds a little like PETA!