United States – Driving

Is the United States safe to drive in?

Road safety is an ongoing public health priority in the United States, which ranks among the world’s most heavily motorised nations. According to the National Highway Traffic Safety Administration (NHTSA), approximately 39,345 people lost their lives in traffic crashes in 2024 — a decline of around 3.8% from the 40,901 fatalities recorded in 2023. The final quarter of 2024 marked the eleventh consecutive quarter of falling fatality figures dating back to the second quarter of 2022, which reflects meaningful progress.

When compared with many Western European nations — where deaths per kilometre driven are markedly lower — the US presents a distinct picture: enormous road networks, a deep reliance on private vehicles, and substantially higher speeds on rural and interstate routes. Conditions differ greatly across the country, however. Interstate highways are typically well-maintained and clearly marked. City roads in large urban centres can be congested and present elevated risks for pedestrians. In states such as Texas, Montana, and Wyoming, rural highways stretch vast distances at high speeds, often far from emergency services.

Improvements have been recorded in several categories, including pedestrian and speed-related collisions, rollover incidents, and crashes involving unrestrained occupants. Nevertheless, fatality figures remain roughly 8% above 2019 levels, and with nearly 40,000 deaths per year, action at federal, state, and local levels continues to be considered essential. Expats are encouraged to consult the NHTSA website for the latest road safety statistics and breakdowns by state.

Driving behaviour in the US tends to be more assertive than in many other countries, particularly on freeways. Lane discipline varies by region: drivers in the Northeast often move more fluidly through lanes, while in the Midwest and South there may be less familiarity with the overtaking conventions common in Europe. Rules governing school zones, railroad crossings, and school bus stops are enforced rigorously, with substantial penalties for non-compliance.

What side of the road do you drive on in the United States?

Traffic in the United States travels on the right-hand side of the road, with overtaking performed on the left. This convention is shared with continental Europe, Latin America, most of Asia, and the majority of countries worldwide. If you are coming from a nation where driving is done on the left — including the United Kingdom, Ireland, Australia, Japan, India, or South Africa — a conscious and deliberate adjustment will be required.

Adapting to driving on the opposite side can take anywhere from a few days to several weeks before it feels instinctive. The greatest risk for newly arrived left-side drivers tends to arise at intersections and junctions, where the impulse to default to the familiar side can surface unexpectedly — particularly in light traffic or when turning into roads with multiple lanes. Driving a left-hand-drive vehicle (the American standard) helps reinforce the adjustment. It is advisable to begin with quieter routes and build up gradually before tackling complex motorway interchanges.

Roundabouts, while becoming more widespread across the US, remain far less common than in the UK or Australia. Most American intersections are managed by traffic lights or four-way stop signs. Where roundabouts do exist, the standard rule applies: give way to vehicles already circulating within the roundabout, consistent with international practice.

What are the main driving rules in the United States?

A fundamental point for any expat arriving in the US is that traffic law is primarily a state-level matter. While federal guidelines establish certain baseline safety standards, each state has the authority to set its own rules, which means regulations can change as you cross state lines. What is permitted in one state may be restricted or prohibited in another.

Speed limits

Posted speed limits across the country range from as low as 25 mph (40 km/h) on residential and urban streets to as high as 85 mph (137 km/h) on certain rural highways. Urban roads are typically limited to 25–35 mph, while rural highways generally sit at 55–65 mph. The US does not apply a single national motorway speed limit: as of 2017, 41 states have set maximum speed limits of 70 mph (113 km/h) or above. Speed limit signs change frequently, so always follow posted figures rather than assuming a limit applies across a wider stretch of road.

Right-of-way and intersections

The four-way stop is a distinctly American road feature. Every vehicle approaching a four-way stop must come to a complete halt, then proceed in the sequence in which it arrived. Where two vehicles reach the stop at the same moment, the vehicle on the right takes priority. At traffic lights, turning right on a red signal is generally allowed after a complete stop, unless a sign explicitly forbids it. New York City is a well-known exception: right turns on red are prohibited there by default.

Mobile phone use

Pennsylvania, Iowa, and South Carolina introduced hands-free laws in 2025 that ban holding a phone while driving, and Missouri’s 2023 hands-free legislation is now fully enforced. Numerous other states already have similar restrictions in place. As a practical rule, you should never hold or operate a handheld device while driving anywhere in the US. In states with hands-free mandates, a phone may be used in a cradle mount for navigation or calls, but physically touching the device is prohibited. Fines for violations can run into hundreds of dollars and vary from state to state — always check the rules for each state you intend to drive through.

Drink-driving (DUI/DWI)

The legal blood alcohol concentration (BAC) limit nationwide is 0.08%, though state penalties for DUI offences differ considerably. Drivers under 21 face a near-zero tolerance limit in most states. Consequences can include jail time, community service, financial penalties, suspension of driving privileges, and mandatory installation of an ignition interlock device (IID). Many states have extended DUI definitions to cover cannabis and certain prescription medications. Consult your state’s Department of Motor Vehicles (DMV) for specific provisions.

Seat belts and child restraints

All 50 states have seat belt laws, though the enforcement approach (primary vs. secondary) and exact requirements vary. Virginia now mandates seat belt use for every occupant in every seat. Children must travel in appropriately sized car seats or booster seats, with weight, height, and age thresholds differing by state. Your state’s DMV website is the best source for current requirements, and the NHTSA child seat guidance provides a useful reference point.

School buses

When a school bus activates its red flashing lights and extends its stop arm, all traffic on an undivided road — travelling in either direction — must come to a complete stop and remain stationary until the bus moves on or the lights cease flashing. This rule is enforced in every state, and penalties for violations are severe.

What equipment are you legally required to carry in your car in the United States?

Compared with many other countries, the US imposes a relatively modest set of mandatory in-vehicle equipment requirements. There is no single federal standard covering emergency gear for private passenger vehicles — unlike France, where a breathalyser must be kept in the car, or much of continental Europe, where warning triangles and reflective vests are compulsory. Requirements are set at the state level and differ accordingly.

The following items are legally required or very strongly recommended across most or all US states:

• Valid driving licence: You must have it with you whenever you are behind the wheel.
• Vehicle registration document: Evidence that the vehicle is registered with the relevant state — usually a card or certificate stored in the glove compartment.
• Proof of insurance: The majority of states require drivers to carry evidence of minimum liability insurance at all times. Digital proof displayed on a phone is accepted in many states.
• Number plates (licence plates): Must be displayed front and/or rear in line with each state’s requirements.

There is no federal obligation to carry warning triangles, high-visibility vests, fire extinguishers, or first aid kits in a private vehicle. That said, keeping an emergency kit in your car — including a first aid kit and a torch — is strongly advisable, particularly when driving on remote roads. Commercial vehicles and those used in specific industries are subject to additional requirements under the Federal Motor Carrier Safety Administration (FMCSA).

Certain states may have specific provisions — for example, tyre chains or winter tyres may be required in mountainous regions during periods of snowfall. Check the rules for any state you plan to drive in, using the relevant state DMV as your primary source.

What are the most important road signs in the United States?

Road signage across the US is standardised at the federal level through the Manual on Uniform Traffic Control Devices (MUTCD), published by the Federal Highway Administration (FHWA). The US adheres to the 1949 Geneva Convention on Road Traffic rather than the 1968 Vienna Convention, meaning its signs differ meaningfully from those found throughout much of Europe — most noticeably in the greater use of written text rather than symbols on certain signs.

Key characteristics of the US road sign system include:

• Colour coding: Red signs signal prohibitions — stop, yield, do not enter, wrong way. Yellow signs indicate warnings. Green signs provide directional guidance on highways. Blue signs point to services such as fuel, food, and hospitals. Orange denotes roadworks and construction zones. Brown signs identify parks, recreation areas, and points of scenic or historic interest.
• Shape coding: The octagonal STOP sign and the inverted triangle YIELD sign are universally recognisable. A diamond shape signals a warning. A pentagon pointing upward marks a school zone.
• Text-based information: While European signs rely heavily on symbols, US highway signage frequently includes place names and distances in written form. Speed limit signs are rectangular, white with black numerals, and always display figures in miles per hour (mph).
• “Wrong Way” and “Do Not Enter”: These red and white signs are especially critical for drivers unfamiliar with US freeway on-ramp and off-ramp layouts. Mistakenly entering a highway via an exit ramp is a dangerous error that newly arrived drivers occasionally make.

Traffic lights

US traffic signals follow a standard sequence: green (proceed), amber/yellow (prepare to stop), red (stop). A flashing red light has the same function as a stop sign — come to a complete halt and move off when it is safe to do so. A flashing amber/yellow light means proceed with caution. As mentioned above, turning right on a red light after a full stop is generally permitted unless a sign states otherwise — a rule absent in many other countries that can initially confuse drivers accustomed to treating red as an unconditional prohibition.

At some intersections, a green arrow signals a protected turn, meaning oncoming traffic is held and you may turn safely in the indicated direction. A solid green circle, however, does not override pedestrian right-of-way — always yield to anyone crossing in a designated crosswalk before completing your turn.

What must you do if you have a road accident in the United States?

Being involved in a road accident in the US triggers a clear set of legal obligations. Leaving the scene without stopping — commonly referred to as a “hit and run” — is a serious criminal offence in every state. The following steps set out what you must do:

1. Stop immediately and ensure safety: Pull over as near to the scene as is safely possible. Activate your hazard lights and, where it is safe, move vehicles away from the path of oncoming traffic to reduce the risk of a secondary collision.
2. Call emergency services if needed: Dial 911 for police, fire, or medical assistance. Contact emergency services immediately if anyone has been injured, if there is substantial damage to property, or if the road is obstructed. Most states legally require accidents involving injury or death to be reported to law enforcement.
3. Check on all parties involved: Without making any admission of fault, establish whether anyone has been hurt. Avoid moving injured individuals unless there is an immediate threat such as fire.
4. Exchange information: Share and collect the following with every driver involved: full name and contact details, driving licence number, vehicle registration number, and insurance company name and policy number. If witnesses are present, obtain their contact details as well.
5. Document the scene: Photograph vehicle damage, the road environment, skid marks, and nearby signs. Record the time, date, and exact location of the incident.
6. File a police report: Even if officers do not attend in person, most states require a formal report to be submitted to the local police department or state DMV when damage exceeds a defined threshold — the figure varies by state, so confirm current requirements with your state DMV.
7. Notify your insurer: Contact your insurance provider promptly, as most policies require timely notification. Supply all information gathered at the scene.

Accidents on US roads are handled by local police, county sheriffs, or state highway patrol, depending on where the incident occurs. Which authority takes jurisdiction depends on whether the road is a city street, county road, or state or federal highway. As of 2025, reporting thresholds and procedures may differ between states — always verify current requirements with your state DMV or local law enforcement.

The approach to liability also varies by state. In at-fault states — such as Texas, California, and Georgia — the driver deemed responsible for the accident bears the cost of damages. In no-fault states — such as Florida, Michigan, and New York — each driver’s own insurer covers their losses regardless of who caused the collision. Knowing which system operates in your state is important when selecting the right level of insurance cover.

Where can you find up-to-date road traffic information in the United States?

A wide range of official and commercial resources are available to help drivers stay informed about traffic conditions across the US. Given the country’s scale and the variation between states, it is worth identifying the specific tools relevant to the area where you live or plan to travel.

Official government sources

• State DOT websites: Every state operates its own Department of Transportation (DOT) with a dedicated traffic information portal. California, for example, uses QuickMap, while Texas operates DriveTexas. Searching for your state’s DOT traffic map will bring up the relevant official resource.
• 511 systems: The majority of US states provide a free 511 telephone and online service offering live traffic conditions, road closures, and incident updates. Dialling 511 from any phone while within a given state will connect you to that state’s service, and most states also operate an online 511 portal.
• Federal Highway Administration (FHWA): The FHWA offers national-level information together with links to state-level travel data resources.

Apps and mapping services

Navigation and real-time traffic apps are ubiquitous in the US. The most widely used include:

• Google Maps: A trusted tool for real-time traffic data, turn-by-turn directions, and incident notifications.
• Waze: A community-based platform that provides live alerts about accidents, police presence, and road hazards — particularly popular among regular commuters.
• Apple Maps: Well integrated with iPhone and CarPlay, and increasingly dependable for navigation within the US.
• INRIX: Used by numerous state DOTs and also available as a consumer app, offering detailed US traffic data.

Radio traffic reports

AM and FM radio traffic bulletins remain popular, particularly in large urban areas. Many local stations broadcast updates every ten minutes during rush hour, and some major cities have dedicated round-the-clock traffic radio stations.

How does parking work in the United States?

Parking in the US is administered at city or county level, meaning rules, costs, and systems vary considerably from one location to another. There is no overarching national parking authority. Getting to grips with local regulations in your area is essential — fines for violations can be substantial, particularly in cities.

On-street parking

On-street parking is governed by posted signs indicating time restrictions, permitted hours, and payment requirements. It is essential to read all signs before leaving your vehicle — a single block may carry several overlapping restrictions, including street-cleaning schedules, permit-only periods, and loading zones. When a meter or pay station is required, ensure you have the correct payment method. Most modern US cities have transitioned to multi-space pay stations or app-based payment systems — commonly ParkMobile or PayByPhone — so having a smartphone and a payment card to hand is advisable.

Off-street and garage parking

Paid parking garages and surface lots are common in city centres. Rates differ widely according to location and city; as of 2025, hourly charges in central areas of cities such as New York, San Francisco, and Chicago can readily exceed $30–$50 per hour. Always confirm current pricing at individual facilities, as rates change regularly.

Residential parking permits

Many urban neighbourhoods operate residential parking permit (RPP) schemes that set aside on-street spaces for local residents during designated hours. Permits are issued by the relevant city or county authority — typically the local parking or transportation department. Eligibility is based on proof of residency, such as a lease agreement or utility bill, together with vehicle registration. Contact your local municipality directly for current application requirements and fees, as these vary significantly between areas.

Parking for people with disabilities

The US manages disabled parking through a placard and licence plate system administered at state level, though all states must comply with minimum federal standards under the Americans with Disabilities Act (ADA). Designated accessible parking spaces are identified by the International Symbol of Access — the blue wheelchair symbol used internationally — and may be used by vehicles displaying a valid placard or special licence plate.

Foreign disabled parking permits are not automatically recognised in the United States. Anyone relocating to the US will need to apply for a state-issued placard through their state’s DMV. Eligibility generally covers mobility impairments, certain vision conditions, and specified medical needs, and a physician’s certification is usually required. Most states offer both temporary and permanent placards — check the relevant state DMV’s official website for current fees, eligibility criteria, and processing times.

Can you drive in the United States on a foreign or international licence?

Visitors to the US may legally drive using a valid, unexpired foreign driver’s licence, in most cases for up to one year — though the precise rules differ by state. Some states, including Georgia, Massachusetts, and Florida, have more stringent requirements and may expect drivers to carry both a foreign licence and an IDP to comply fully with local law.

International Driving Permits (IDPs)

Depending on which US states you intend to visit, you may need an International Driving Permit (IDP) alongside your home country driver’s licence. An IDP is a recognised identification document that enables you to drive legally in participating countries abroad. It must be obtained before you travel — the US does not issue IDPs to foreign visitors. To obtain one, contact the motor vehicle authority in the country that issued your original licence.

If your licence is not printed in English, carrying an IDP is strongly advisable. Even in states where an IDP is not technically compulsory, having one can make any encounter with police, car rental staff, or insurers considerably smoother. Most US rental companies will accept a foreign licence, but may ask for an IDP if the licence is not in English.

Applying for a state driving licence as a resident

Foreign nationals who have taken up permanent residence in the US may apply for a driving licence in the state where they live. The residency threshold for eligibility varies from state to state — contact your state’s Department of Motor Vehicles for current identity documentation requirements and application guidance.

Most states require new residents to exchange their existing licence for a local one within 30 to 90 days of establishing residency, though this window differs by state. The process typically involves a written knowledge test (based on the state’s driver handbook, available free from your state DMV), a vision screening, and a practical driving assessment. Some states maintain bilateral licence exchange agreements with certain countries that may waive one or more of these elements — check with your state DMV for current arrangements. A state-issued driving licence is valid for travel throughout the entire US.

The USA.gov non-citizen driving guide and your state’s DMV website are the most dependable sources for up-to-date requirements. Fees and processing times vary by state; as of 2025, consult the official state DMV portal for current figures.

Frequently Asked Questions About Driving in the United States

Do I need car insurance to drive in the United States?

Yes. Auto insurance is compulsory in the vast majority of US states and provides essential financial protection in the event of a collision. Minimum coverage requirements differ by state but generally include liability insurance, which covers loss or injury caused to third parties. In no-fault states, personal injury protection (PIP) is also required. If you are hiring a vehicle, check whether your home-country policy or credit card extends coverage to the US; if not, purchase insurance from the rental company. New residents should arrange a US-based auto insurance policy as soon as they acquire a vehicle.

Are there toll roads in the United States?

Yes, toll roads are widespread across many US states, with particular concentrations in the Northeast, Florida, Texas, and the Midwest. The majority of modern toll roads and bridges operate electronic collection systems rather than staffed booths — E-ZPass is the most widely used system, accepted in 19 states. Drivers without a compatible transponder will often have their number plate photographed and receive an invoice by post, though fees and administrative charges tend to be considerably higher this way. Check in advance whether any routes you plan to take are subject to tolls and what payment options are available in that state.

What are the penalties for driving under the influence (DUI) in the United States?

For a first DUI conviction, typical consequences include jail time, community service, financial penalties, suspension of driving privileges, and mandatory fitting of an ignition interlock device (IID). Minimum penalties are frequently increased where the driver’s BAC was high (usually 0.15% or above) or where someone was injured as a result of the incident. For foreign nationals, a DUI conviction may carry serious immigration implications, including potential visa revocation or a finding of inadmissibility. Penalties are determined at state level and vary in severity — consult your state DMV or a qualified legal professional for current information.

Are there winter driving requirements in the United States?

Winter driving rules differ considerably by state and geography. In mountainous regions — especially in western states such as Colorado, California (Sierra Nevada passes), Washington, Oregon, and Idaho — tyre chain requirements or snow tyre mandates may be enforced during the winter months. Conditions can change rapidly, so keeping an eye on the weather and adjusting your driving accordingly is essential. Colorado and California in particular can impose chain restrictions on certain mountain passes at short notice; consult your state DOT’s 511 service or website before setting out in wintry conditions. Across much of the South and Southeast, winter precipitation is rare, but those areas can be especially treacherous on the rare occasions when snow or ice occurs, as both infrastructure and local driver experience may be limited.

Can I drive with children in the car, and what are the car seat rules?

Children must be correctly secured in appropriate restraints at all times. Each state specifies its own requirements for car seats and booster seats based on age, weight, and height thresholds. As a general guide, infants and toddlers are required to use rear-facing seats, older children move to forward-facing seats with a harness, then booster seats, before graduating to a standard seat belt alone. The NHTSA provides a state-by-state overview at nhtsa.gov. Breaching child restraint laws can result in fines and penalty points on your driving record.

How do I find parking in a major US city as an expat?

In cities such as New York, Los Angeles, Chicago, and San Francisco, parking is both expensive and intensely competitive. Apps including SpotHero, ParkWhiz, and ParkMobile enable you to search for, reserve, and pay for spaces in advance. Many expats living in densely populated urban areas find it more cost-effective and practical to rely on public transport, cycling, or ride-hailing platforms such as Uber and Lyft rather than owning a car. If you do own a vehicle, permit-based on-street parking is often available in residential areas — contact your local city transportation or parking authority for details on how to apply.

Is driving on US freeways different from motorway driving in other countries?

US freeways — also known as interstates or highways — are generally multi-lane, high-speed roads with fully grade-separated interchanges. One notable difference from many other countries is that lane discipline is not rigorously enforced: slower vehicles do not always stay to the right, and overtaking on either side is common in practice, even though legally you should pass on the left. Speed limits on interstate highways typically range from 65 to 80 mph, with certain roads in Texas posted at 85 mph. When joining a freeway, merging traffic is responsible for matching the flow of existing traffic, and drivers already on the road do not always slow down to accommodate new entrants — be prepared to accelerate promptly to match prevailing speeds when merging.

What should I do if I am pulled over by police while driving in the United States?

When a police officer signals you to stop — using flashing lights and/or a siren — pull over smoothly and promptly to the right side of the road. Switch off your engine, and if it is dark, turn on your interior light. Keep both hands clearly visible on the steering wheel. Do not reach into the glove compartment or elsewhere until the officer requests it. You will be asked to produce your driving licence, vehicle registration, and proof of insurance. Throughout the interaction, remain composed and respectful. In most circumstances, you are not legally obliged to consent to a vehicle search without a warrant, but you must not physically resist any police action. If you believe the stop involved a violation of your rights, pursue the matter through proper legal channels afterwards. If a dispute arises, seeking advice from a lawyer is strongly recommended.