what about all the threads claiming that the buyer is the importer, rather than the seller? So people in other countries can ship to the US without worrying about the US laws, because technically it's the buyer's responsibility?
I don't know if that's true, but a lot of people were saying it.
You have to comply with all the testing/labeling laws for wherever you're shipping the product to for resale, AND to all the manufacturing laws in the country (+ state and local) you're in.
So if the seller is responsible, then US sellers have to meet EU standards, which are STRICTER than CPSIA, to sell to Europe. The Canadian laws follow the EU standards. If the Canadians out there are actually complying with their own safety laws, then CPSIA shouldn't scare them off. (I don't know how the labeling requirements differ though.)