Driving the US on a Canadian Licence — The Easy Border, the State-by-State Catch

If you have ever wanted a foreign road trip with almost no learning curve, this is it. For a Canadian driver the United States is the gentlest border crossing imaginable: your licence is accepted everywhere, no International Driving Permit is required (it is already in English), traffic stays on the right just like home, and the alcohol limit is the familiar 0.08. You can often drive your own car straight across the border. So this page is less about what to fear and more about the one thing that genuinely shifts — the rules are not national, they are state-level.

Cross a state line and the numbers change beneath you. Interstate speed limits range from about 104 km/h (65 mph) in the northeast to 137 km/h (85 mph) on parts of Texas highways, and a limit that was legal in one state is speeding in the next. Right-turn-on-red is allowed in most states but banned in others and across much of New York City. Some states require headlights in rain; a few treat phone use far more harshly than your home province. The licence is easy; assuming the rules carry over is the trap. Skim the US driving guide for the state you are visiting before you set off.

Enforcement is mostly patrol-based rather than camera-heavy, and a typical speeding fine runs USD 50-200 depending on the state and how far over you are — you can estimate it with the speeding fine calculator. Watch for school zones, which carry steep multipliers, and for the absolute rule that you stop for a stopped school bus with its lights flashing — running one is treated severely everywhere.

Alcohol is 0.08 in nearly every state, matching most of Canada, though Utah sits at 0.05; treat zero as the rule and remember a conviction can void rental insurance. Fuel is cheap by Canadian standards at around $0.95/litre, distances between fuel stops can be long out west, and the emergency number is 911.