How Does Driving Rules Work in United States?
Last verified: 2025-06 · Americas
1The Quick Answer
Drive on the right side of the road; an international driving permit plus your home licence is valid in most states; a rental car is essential for exploring beyond major cities.
2What You Need to Know
The US drives on the right and has an extensive interstate highway system. Speed limits are enforced, ranging from 25mph in residential zones to 85mph on some Texas highways, and photo radar enforcement is used in some states (Arizona, Colorado). The legal BAC limit for DUI is 0.08% nationally (0.05% in Utah) — DUI convictions carry severe penalties and can affect future visa applications. Right turns on a red light are permitted in most states after a complete stop, unless a sign prohibits it. Fuel is sold by the gallon and is generally cheap by international standards.
3Practical Tips
Practical Tips
- 1Book rental cars well in advance, especially for summer travel to national parks — last-minute rentals are significantly more expensive and availability can be very limited.
- 2Download Google Maps or Waze offline for your destinations before driving in areas with limited cellular coverage — navigation apps are far more useful than in-car GPS systems.
- 3Never drink and drive under any circumstances — DUI enforcement is aggressive, penalties are severe, and rideshare alternatives are available almost everywhere.
Important Warning
Distracted driving laws (no hand-held phone use while driving) are enforced in most states and fines are substantial — use hands-free Bluetooth or pull over to use your phone while driving.
How does this compare?
Driving Rules rules in nearby and similar countries:
Drive on the right; watch for unmarked topes (speed bumps) everywhere, and avoid driving between cities at night.
Drive on the right, an international driving license is valid, but avoid driving at night in unfamiliar areas and be prepared for chaotic urban traffic and highly variable road conditions.
Drive on the right, use metric speed limits in km/h, and know that winter tires are mandatory in Quebec from December to March.
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More About United States
Tipping is mandatory in practice — 18-22% at sit-down restaurants is the current norm, as servers can legally be paid as little as $2.13/hr in base wages.
Updated 2025-06
The US has no national public transport network — outside of a handful of major cities, a rental car is essential for getting around.
Updated 2025-06
US healthcare is the most expensive in the world — a single emergency room visit can cost USD 3,000-10,000 or more without insurance, making comprehensive travel insurance absolutely mandatory.
Updated 2025-06
Laws vary significantly from state to state — cannabis, gun ownership, and alcohol rules that are legal in one state can be criminal offences in another.
Updated 2025-06
Dial 911 from any phone for police, ambulance, or fire services — it works nationwide on any carrier, even without a SIM card.
Updated 2025-06
The US is extremely casual — there are virtually no enforced dress codes in public, and Americans dress far more informally than European standards.
Updated 2025-06
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