Even Canadian-market vehicles may not meet these requirements. Since Canadian regulations are similar to those in the U.S., an individual can import a vehicle manufactured to Canadian motor vehicle safety standards if the original manufacturer issues a letter stating that the vehicle also conforms to U.S. motor vehicle standards. The decision to issue a compliance letter is solely at the discretion of the manufacturer, even if the vehicle is known to meet U.S. standards. Before issuing a compliance letter, most manufacturers request proof that the owner of the vehicle is a resident of Canada, and that the car was registered and used in Canada for a minimum period. This is done because the manufacturers maintain separate pricing structures for the U.S. and Canadian markets.