I was about to create a thread for this, asking the same question because I too live in Canada and am looking to place an order with DMC. Please let me know if you find a concrete answer to this, I would like my Ctb to go down without any drama or extra complications.
I also worry that authorities may be on high-alert for SN deliveries after that man Kenneth Law was arrested for selling SN out of Mississauga. That being said I'm just a generally anxious person…
All the best to you