Road rules that trip up North American drivers abroad

Your US or Canadian licence is accepted for short visits in many countries, but not all. Some require an International Driving Permit (IDP) alongside your home licence; others accept it as a translation only. An IDP is a small booklet issued by a motoring authority, and it must be carried with your original licence, never instead of it. Issuers differ by country and change over time, so confirm the current authorised issuer in your country before you apply (check).

Check three things before you book a car: whether an IDP is required, whether your licence needs an official translation, and whether the rental company has an age minimum or surcharge for drivers under 25 or over 70. Some countries also require a minimum period of licence holding, often one to two years.

Carry your passport, licence, IDP and the rental agreement together. What police expect at a stop varies by country — some want the physical documents, others accept a photo — so carry the originals and follow the instructions you are given. If you are stopped, stay calm, keep your hands visible and follow local police directions.

North American drivers are used to 0.08% blood alcohol concentration. Many countries set 0.05% or lower, and a growing list is effectively zero-tolerance, especially for novice and professional drivers. In practice this means one drink can put you over the limit. The safe rule abroad is simple: if you are driving, do not drink.

Speed limits are posted in km/h almost everywhere outside the US, UK and a few others. Learn the conversions before you drive: 30 km/h ≈ 19 mph, 50 km/h ≈ 31 mph, 80 km/h ≈ 50 mph, 100 km/h ≈ 62 mph, 120 km/h ≈ 75 mph. Limits in towns are often much lower than at home, and enforcement is heavier.

Penalties escalate fast. Some countries impose on-the-spot fines, licence confiscation, or vehicle seizure for serious speeding. In several European countries and Australia, fines follow you home through the rental company, which adds an administration charge on top.

Priority rules differ more than most drivers expect. In many European countries, traffic from the right has priority at unmarked junctions — a rule that does not exist in the US or Canada. In left-driving countries, the mirror image applies. Roundabouts are standard in Europe, the UK, Australia and increasingly the US, but priority is not identical everywhere: most require you to yield to traffic already in the circle, while some countries and specific junctions use different rules. Read the signs and markings at each entry and follow local practice (check).

Watch for tram priority in cities such as Amsterdam, Zurich, Melbourne and Prague. Trams are heavy, cannot stop quickly, and usually have right of way. Do not block tram tracks at a junction. Also watch for filtered turns: in some countries a green light does not mean you may turn across oncoming traffic without yielding.

Pedestrian priority is stronger abroad, but the rules vary by country and by crossing type. In much of Europe and Australia, drivers must give way to pedestrians on marked crossings, and in the UK pedestrians on a zebra crossing have priority once they step onto it. Treat every crossing as one where you should be ready to stop, and check the local law (check).

Tolling is the area where North American drivers most often get caught out. Some motorways have staffed or card barriers, but many are barrier-free and bill by number plate. If you drive through without a valid account or vignette, the charge plus a penalty can be sent to the rental company, which passes it on with an admin fee.

Two systems dominate. Distance or barrier tolls, common in France, Italy, Spain and parts of Asia, are paid at the barrier or by transponder. Vignette systems, used in Austria, Switzerland, Czechia, Slovakia, Slovenia and Hungary, require a sticker or digital pass bought before you use the motorway. City congestion charges, such as London's, are separate and usually camera-enforced.

Speed cameras are widespread in Europe, the UK, Australia and the UAE. Fixed cameras are signed; average-speed cameras measure your time between two points and catch drivers who speed up between them. Fines usually arrive weeks later via the rental company.

Do the paperwork first. Confirm whether an IDP is required, whether your licence needs translation, and whether the rental company has age or licence-holding rules. Check your travel insurance and your credit card for rental car cover, and understand what is excluded — many cards exclude large vans, certain countries and off-road use.

Then learn the local rules. Read the destination's road authority summary if one exists, and note the side of the road, the alcohol limit, the urban speed limit, and how tolls are paid. Save an offline map and the local emergency number. If you are renting, photograph the car before you drive off and check the fuel type at the pump — read the label on the nozzle and the filler cap, not the colour of the handle, since colours vary by country and by brand.

On the day, take it slowly. Drive the first stretch in daylight, avoid the busiest city centre until you are used to the car, and stop if you are tired. Most problems come from fatigue, not from the rules themselves.