Manufacturer is restricted by company as to how many cars they will be able to import into Canada. So let’s say pulling a number out of thin air. Tesla may be allowed permission to import 10,000 cars from China still leaving room for other manufacturers to import cars.Tesla was already shipping EVs from China to the US and other countries, so the vehicles are already in compliance with Canadian rules. All they have to do is load up a boat.
The Canadian government will issue what they allowed to send to Canada by company