Driving in CambodiaWhat the rules require
When do you need an IDP in Cambodia?
Cambodia drives on the right; an IDP is commonly requested for foreign drivers, and traffic in Phnom Penh is chaotic and best approached cautiously.
Does renting a car in Cambodia require an IDP?
Self-drive desks ask for an IDP; many tourists hire a driver or tuk-tuk. Having your permit ready avoids losing your reservation at the counter.
Driving rules in Cambodia you should know
- Drive on the right.
- Helmets mandatory for motorbikes.
- 0.05% alcohol limit.
- Carry passport, IDP and home licence.
How long is an IDP valid in Cambodia?
Cambodia uses the 1968 Vienna Convention format, under which an IDP can be valid for up to 3 years — or until your national licence expires, whichever comes first. If you travel regularly, the validity clock starts on the issue date, not on first use — so order close to your departure to maximise usable time.
Documents checklist for driving in Cambodia
- Your original national driving licence — the IDP is a translation and is never valid on its own.
- Your International Driving Permit, in the 1968 Vienna Convention format Cambodia uses.
- Your passport or accepted national ID for police checks and rental pick-up.
- For rentals: the credit card used for the booking and your rental agreement (it covers the registration and insurance papers).
- Local currency or a card for road costs — Cambodia uses the KHR.
Driving in Cambodia: the practical detail
Sourced from national road authorities, motoring clubs and rental policies — the things that actually catch foreign drivers out.
Driving on a foreign licence
Foreign tourists need their national licence plus a 1949 International Driving Permit, which Cambodia has accepted since 2020; carry the original licence as photocopies are not accepted. Long-stay drivers should convert to a Cambodian licence.
Tolls & road charges
National Road tolls and the country's first expressway, the Phnom Penh-Sihanoukville Expressway, use distance-based tolls (about USD 12 each way for a car), paid in cash, by ANPR plate-billing, or via an ETC on-board unit topped up through local banking apps.
Parking in the cities
In Phnom Penh park in guarded paid lots at malls and markets, where attendants give a ticket and may chock motorbikes; street parking is informal and congested, and illegally parked cars risk clamping or removal by district authorities.
Winter & seasonal rules
No winter-tyre rules - tropical climate.
Fuel & filling up
Stations (Total, PTT, Caltex) sell EA92/EA95 petrol and diesel and are attendant-served; expect roughly USD 1.10-1.15 per litre for petrol, with cards accepted at branded city stations but cash needed in rural areas.
If you have an accident
Dial 112 (or 117/119 for police/ambulance); do not move vehicles after a serious crash and wait for traffic police, as a report is needed and at-fault foreign drivers are often expected to negotiate on-the-spot compensation.
Driving in the capital
Phnom Penh traffic is dense and unpredictable, dominated by motorbikes and tuk-tuks that filter from all sides; vehicles often ignore lane markings and turn across traffic, so defensive driving is essential.
Fines & enforcement
Speeding (the leading crash cause), no seatbelt/helmet and phone use draw fines that traffic police frequently collect on the spot in cash; enforcement and amounts vary, and fines were even temporarily suspended in 2025 amid fuel-price pressure.
A drive worth taking
The new Phnom Penh-Sihanoukville Expressway gives a fast, smooth run to the southern coast, while National Road 6 toward Siem Reap and Angkor is the classic tourist route.
Sources: cambodia.embassy.gov.au · tyremap.com · tollguru.com · cambodianess.com
Cambodia · common questions
01Do I need an International Driving Permit to drive in Cambodia?
Yes — an International Driving Permit is commonly required for foreign drivers in Cambodia, and it is especially expected when your national licence is not printed in the Roman alphabet. Carry it alongside your valid national licence, which most rental agreements and traffic checkpoints ask to see. Cambodia drives on the right; an IDP is commonly requested for foreign drivers, and traffic in Phnom Penh is chaotic and best approached cautiously. Your IDP is prepared in the 1968 Vienna Convention format that Cambodia recognises. Without one you risk being denied car rental, facing fines, or having your rental insurance invalidated.
02Which IDP format does Cambodia accept, and how long is it valid?
Cambodia uses the 1968 Vienna Convention format, under which an IDP can be valid for up to 3 years — or until your national licence expires, whichever comes first. The format matters because some countries are signatories to only one convention, meaning an IDP in the wrong format may not be recognized. International Driver Licence prepares your permit in the exact booklet format that Cambodia requires, eliminating any ambiguity at rental desks or police checks. Remember that the validity period begins on the issue date, not when you first arrive in the country — this is critical for trip planning, especially if you're traveling across multiple countries over several weeks. Plan your order timing carefully to ensure your permit remains valid throughout your intended driving period in Cambodia.
03Do I need an IDP to rent a car in Cambodia?
Yes, an IDP is highly recommended when renting a car in Cambodia. Self-drive desks ask for an IDP; many tourists hire a driver or tuk-tuk. Most major rental chains — including Hertz, Enterprise, Budget, Avis, Sixt and Alamo — list a valid International Driving Permit as a standard counter requirement for foreign licences, especially those not printed in English. The minimum rental age in Cambodia is typically 18+, and most agencies apply a young-driver surcharge for drivers under 25. Arriving without your IDP can result in a refused booking, a held security deposit, or being forced to pay inflated rates for a last-minute local driver upgrade. Always bring your IDP, your original national licence, your passport and the credit card used for the booking — having all documents ready significantly reduces friction at pick-up.
04Which side of the road does Cambodia drive on?
Cambodia drives on the right-hand side of the road. Drive on the right. This is one of the most crucial adjustments for international drivers — muscle memory from your home country can lead to serious errors if you're suddenly on the opposite side. Pay special attention when turning left or right, overtaking, and using roundabouts, as these manoeuvres feel unintuitive when reversed. Rental companies often include brief driving-side orientation tips in their contract, but it's worth spending the first 10–15 minutes on quiet roads to acclimatize. Many foreign drivers who cause accidents in Cambodia do so within the first few hours due to this disorientation, so allow extra time and heightened alertness until the adjustment becomes automatic.
05What is the drink-driving limit in Cambodia?
0.05% alcohol limit. Penalties for exceeding the limit as a foreign driver in Cambodia are severe and enforced rigorously. On-the-spot fines commonly reach several hundred euros or the local equivalent, and vehicle impoundment can occur immediately — your rental insurance is often invalidated if you test positive, leaving you personally liable for tow and storage costs. Some countries impose driving bans that extend into subsequent years, complicating future visits. Police in Cambodia conduct random breath tests at checkpoints and after minor incidents, so even a single drink significantly raises your risk. The safest rule is simple: do not drive after consuming any alcohol. Use taxis, ride-shares, or designated-driver services instead; the cost is trivial compared to fines, insurance claims and legal troubles.
06What is the speed limit in Cambodia?
The maximum for cars on the fastest road class in Cambodia is 90 km/h highways (120 on new expressway). However, limits drop significantly in built-up areas, residential zones and on secondary roads — always observe posted signs as they take absolute precedence over general limits. Speed enforcement in Cambodia relies on fixed cameras, mobile radar units and plainclothes patrols that target foreign drivers, and fines are often steep. Critically, fines charged to foreign drivers typically arrive weeks later through your rental company as an administrative fee, sometimes inflated with handling charges, so you may not realize you were caught speeding until after your trip ends. Modern rental cars often display speed limits automatically on the dashboard — reference this feature continuously. Exceeding the limit by just 10–20 km/h can trigger automatic fines, so maintain consistent compliance and allow extra time for your journey.
07What is the emergency number in Cambodia?
Dial 117 (police), 119 (ambulance) in Cambodia for police, fire or medical emergencies. From any GSM mobile phone, 112 also connects to local emergency services in most countries even without a local SIM card or active service plan. After an accident, remain at the scene and secure it immediately — place your warning triangle at least 50 metres behind your vehicle (30 metres on motorways). Turn on hazard lights and move yourself and passengers to a safe location away from traffic. Notify your rental company without delay before attempting any repairs; most rental agreements require this, and proceeding otherwise may void insurance coverage. Exchange contact and insurance details with other parties involved, take photos of the damage, and request a police report if injuries occurred or if the accident is disputed. Do not admit liability or sign documents you don't understand; let your rental company's local legal team handle communications.
08What documents should I carry while driving in Cambodia?
Always carry your original national driving licence, your International Driving Permit in the 1968 Vienna Convention format, and your passport or national ID card (police may request ID during routine checks). For rental vehicles, bring the rental agreement itself, as it functions as proof of insurance and authorization — keep it easily accessible. Cambodia uses the KHR, so carry local currency or a credit card; many rural petrol stations and toll booths still accept cash only. Some drivers also carry a second colour photocopy of their licence and IDP, stored separately from the originals in case of loss. Do not be tempted to drive without these documents — police in Cambodia conduct random document checks, especially at borders and motorway rest areas, and fines for missing documentation can be substantial. Present your original licence together with the IDP — showing only the IDP will result in a citation. Keep all documents in a small travel organizer within arm's reach, not in the boot.
09Is an IDP the same as a driver's licence in Cambodia?
No — an IDP is fundamentally different from a driver's licence. It is a certified multilingual translation of your existing national licence prepared in the United Nations convention format (either 1949 Geneva or 1968 Vienna). An IDP does not grant any driving privileges by itself and holds no legal validity unless presented together with your original, valid national licence. Think of it as a document that helps local authorities, police, and rental staff understand your credentials when your home licence is difficult to verify. Some countries, including the United States, issue official government IDPs only through authorized bodies such as AAA and AATA. International Driver Licence is a reputable certified service provider, but its translation is not a substitute for a government-issued IDP where one is legally required in your home country. If you're unsure whether a government IDP is mandatory before departure, check your national motor authority's website before ordering a translation service IDP.
10How long does it take to get an IDP for Cambodia?
With International Driver Licence, you receive your digital IDP by email in as fast as 8 minutes after your application is approved — this makes it possible to order even while you're at the airport or at the rental counter. Your permit arrives as a printable 16-page convention-format PDF booklet in the exact format that Cambodia recognizes, plus a wallet-sized card that includes a QR code for instant online verification by authorities or rental staff. This digital-first approach eliminates the delays of traditional postal mail and gives you instant access to your documents on your smartphone, making it practical for last-minute trips or as a backup if you misplace a printed copy. Print the PDF on standard white paper — no special materials are required. The entire permit package fits standard wallets, and having a digital backup on your phone ensures you're never caught without proof of your credentials, even if your documents are lost or damaged during travel.
Rental requirements in Cambodia
Driving from Cambodia to neighbouring countries
Driving in Cambodia on a foreign licence