Are you refering to at the border crossings? Here in Canada, what lights you can run varies by Province. And even then its up to the discretion of the local PD. Here in Calgary, tons of guys in big trucks run insane HID's with no cut offs bliding everyone on the road. Odds of getting stopped for...
They carry them in 235/75R15 for sure as that is what my truck takes. I could have sworn the last time I looked they had 215's. check out Discount Tire Direct for a list of sizes. Or give Fountain Tire a call as they are the main supplier of Goodyear tires in Canada.
Definitley look into the Goodyear Duratracs. The guys at CT4WD swear by them. They are a dedicated winter tire with the severe snowflake rating. They are an AT but have excellent traction on various surfaces including gravel and most trails. The Duratracs are siped, but they do better in snow...