Laos Driving Side 2026: Right Lane, 90 km/h Rural, 0.05 BAC

Laos drives on the right, the opposite of neighbouring Thailand, which is the switch that catches overland arrivals in their first hour. Towns are capped at 40 km/h and rural roads at 90 km/h; the only fenced high-speed road, the China-Laos Expressway from Vientiane to Vang Vieng, is posted at 80-120 km/h. The blood-alcohol limit is 0.05% and the minimum driving age 18.

Your case: Broken surfaces, livestock and mountain bends keep real speeds well under the 90 km/h rural limit, so a Laotian driving day covers far less ground than the map suggests — work out the real hours and fuel for your own route in the Road Trip Cost Calculator.

🛞 Check your car: Emission Zone Checker — instant verdict for 596 European emission zones, free.

Laos drives on the right. If you are arriving from Thailand (which drives on the left), be especially careful during your first hours on the road.

Emergency Numbers in Laos

Police: 1191 | Ambulance: 1195 | Fire: 1190

Save these numbers before you start driving; Laos does not use 112. Road accidents can also be reported to a dedicated police line, +856 20 5666 9090.

Speed Limits in Laos

WHO’s 2023 profile gives 40 km/h in built-up areas and 90 km/h on rural roads, with no national motorway limit. The Vientiane to Vang Vieng section of the China-Laos Expressway is the first fenced high-speed road in the country, with posted limits between 80 and 120 km/h.

Important: Posted signs always override default limits. Watch for temporary restrictions in construction zones, near schools, and in residential areas.

Speeding Fines and Penalties

No official national fine schedule for speeding was available to publish here, so no figure is given.

Traffic Rules and Regulations

Drive on the right side of the road. Overtake on the left. At roundabouts, enter counter-clockwise and yield to traffic already circulating.

Seatbelts are mandatory for all occupants. Children must use appropriate restraint systems based on their age and height.

Using a hand-held phone while driving is prohibited. Hands-free systems are permitted.

Use headlights in poor visibility, tunnels, and at night. Some areas require headlights at all times.

Priority at intersections follows posted signs. When no signs are present, yield to traffic from the right.

Drink-Driving Laws and Alcohol Limits

The legal blood alcohol limit in Laos is 0.05% BAC (0.05 g/dl), and WHO lists the same figure for young and novice drivers.

The safest approach is to not drink at all if you will be driving. Alcohol affects reaction time and judgement regardless of the legal limit.

Tyre Requirements and Regulations

Due to Laos’s tropical climate, winter tyres are not required. Standard tyres suitable for wet and dry conditions are appropriate year-round.

The legal minimum tread depth is 1.6 mm.

Studded tyres: restricted.

For detailed tyre law information, see our Tyre Laws in Laos guide.

Driving License Requirements

Carry your original driving licence together with the 1949 International Driving Permit; GOV.UK advice for Laos says both must be in the car. Get the permit in the country that issued your licence before you travel.

The minimum driving age is 18 years.

Parking and Fuel

Parking in major cities can be limited and expensive. Shopping centres and commercial areas usually have dedicated car parks. Read signs carefully to avoid towing.

Most fuel stations accept major credit and debit cards. In rural areas, keep your tank above half — stations may be far apart.

Seasonal Driving Conditions

Laos has a tropical heat and monsoon rains. The main driving hazard is heavy rainfall — roads can flood quickly and visibility drops sharply during downpours. Reduce speed in rain and avoid crossing flooded sections. Road surfaces may deteriorate during the wet season.

Practical Driving Tips for Laos

• Download offline maps of Laos before your trip — mobile signal can be unreliable on rural roads.
• Take a break every 2 hours on long drives. Fatigue is a leading cause of road accidents.
• Use our interactive tools on this page — compare rules with your home country and calculate potential fines before you set off.

Sources

• WHO Global status report on road safety 2023, Lao PDR profile (40 km/h urban, 90 km/h rural, no national motorway limit, 0.05 g/dl for all drivers): who.int
• GOV.UK foreign travel advice, Laos safety and security (1949 IDP with the home licence, checkpoints, China-Laos Expressway 80-120 km/h): gov.uk
• GOV.UK foreign travel advice, Laos getting help (police 1191, ambulance 1195, fire 1190): gov.uk