BillD. That's a good heads-up. I'll ask specifically about this item on the Canada side.
If the unit is registered in the USA, and your primary residence is in the USA, then Canadian rules/regs don't apply. I think the difference on Canadian FWC only matter if you buy/own them here.
I'm still curious though. Someday soon I hope to find a camper, and it will likely be in the USA, and I will need to bring it across. Should be "fun"