Most visitors to western Canada  travel in their own vehicle, or rent one upon arrival. Driver’s licenses from all countries are valid in Canada for up to three months. You should also obtain a one-year International Driving Permit before leaving home if the license from you home country is in a language other than English. Inexpensive and available from most motoring organizations, they allow you to drive in Canada (in conjunction with your regular license), without taking a test, for up to three months.
You should also carry car registration papers or rental contracts. Proof of insurance must also be carried, and you must wear seat belts. All highway signs in Canada give distances in kilometers and speeds in kilometers per hour (kph). The speed limit on most major highways is 100 kph (62 mph).
If entering Canada from the United States in your own vehicle, check that your insurance covers travel in Canada. U.S. motorists are advised to obtain a Canadian Non-Resident Inter-Provincial Motor Vehicle Liability Insurance Card, available through U.S. insurance companies, which is accepted as evidence of financial responsibility in Canada.
When renting a vehicle in Canada you have the option of purchasing a Loss Damage Waiver, along with other types of insurance, such as for your personal effects. Before leaving home, find out if you’re already covered. Many people are—through gold credit cards, higher levels of motoring association membership, or home insurance (in the case of personal effects)—and additional coverage may be unnecessary.
Ports of Entry (border crossings) are spread at regular intervals along the entire U.S./Canada border. The main port of entry into British Columbia  is Peace Arch, south of Vancouver . Coutts/Sweetgrass, north of Great Falls, Montana, along Highway 14, is the main crossing into Alberta . Both posts are open 24 hours daily.