Driving in United States: licences, car rental and road rules

Where you drive from, when you go and what you drive all change the price. Use this as a starting grid, then price your exact dates.

Decide first whether you need a car at all. In New York, Chicago, Boston, Washington and San Francisco, transit plus ride-hailing usually beats a rental once you add parking, which can run US$40–80 a night in Manhattan (2026 estimate). Pick up the car only when you leave the city.

Book through a major brand or a broker and compare the total, not the daily rate. Airport desks add concession fees and taxes that can lift the bill by a third; a downtown office is often cheaper but has shorter hours. Check what insurance is already included: the base rate frequently carries only the state minimum liability, so a collision damage waiver and supplemental liability are the two add-ons most renters take. Your own travel insurance or credit card may cover part of the damage waiver — read the exclusions before you decline it.

At pickup, walk the car with your phone camera and photograph every panel, the windscreen and the fuel gauge. Confirm the fuel policy (full-to-full is simplest), the toll transponder option, and whether the car takes petrol or diesel. Ask where the spare tyre and jack are; many US rentals have a repair kit instead.

On the road, speed limits are posted in miles per hour and enforced strictly in small towns. Right turn on red is allowed after a full stop unless a sign forbids it. Four-way stops are first-come, first-go. School buses with flashing red lights mean stop in both directions. Never pass a stopped school bus.

Fuel up before returning the car and keep the receipt. Tolls are common in the Northeast, Florida and around Chicago; most now bill by plate, and the rental company adds an admin fee if you did not take their transponder. Return with the same fuel level and a clean interior to avoid cleaning charges.

Distances are the trap for first-time visitors. A 600 km leg looks short on a map but takes most of a day once you add fuel, food and park stops. Plan 300–400 km a day on scenic routes and 500–600 km on interstates.

Parking rules vary by city: read the signs for street cleaning, permit zones and tow-away hours. In San Francisco and New York, a towed car is expensive and slow to recover.

Alcohol limits are strict: 0.08% blood alcohol in most states, lower in some, and open containers in the car are illegal nearly everywhere. Police checkpoints are common on holiday weekends.

If you are staying longer or working remotely, check licence and insurance rules for residents — a foreign licence may only be valid for a limited period.