Fares must be paid exactly, which means that drivers do not carry change or issue tickets. Transfers should be requested when boarding a bus. Major companies from which cars can be booked in the UK for use in Canada are Avis, Budget, Dollar, Hertz, Thrifty, and Tilden. Traffic drives on the right. Distances are measured in kilometres.
Seatbelts are compulsory for all passengers.
Radar detection devices are strictly prohibited in many states and may not be carried in automobiles. Studded tyres are illegal in Ontario, but are permitted without seasonal limitations in the Northwest Territories, Saskatchewan and Yukon, and are allowed only in winter in other provinces. The official date on which winter begins, for this and other purposes, will vary from province to province. An International Driving Permit is recommended though it is not legally required.