Saint Helena, Ascension and Tristan da Cunha: 2026 Rules
Data verified:
3 min readSaint Helena, Ascension and Tristan da Cunha drives on the left side of the road. The general emergency number is 112. The legal blood alcohol limit is 0.05% BAC. Foreign drivers should carry an International Driving Permit (IDP) alongside their valid national licence.
Driving in Saint Helena, Ascension and Tristan da Cunha means left-hand traffic with rules that may differ from home. Several rules catch tourists off guard every year. Full guide with penalty calculator below.
Saint Helena, Ascension and Tristan da Cunha keep traffic on the left, matching British convention. In an emergency, the number to dial is 112 across the territory. Few other driving rules are formally published for these remote South Atlantic islands.
Speed limits are 50 km/h in urban areas, 80 km/h on rural roads, and 100 km/h on motorways. The blood alcohol limit is 0.05% BAC.
Emergency Numbers in Saint Helena, Ascension and Tristan da Cunha
General Emergency: 112 | Police: 112
Save these numbers before you start driving. In Saint Helena, Ascension and Tristan da Cunha, emergency calls are free from any phone.
Speed Limits in Saint Helena, Ascension and Tristan da Cunha
The default speed limits for passenger cars in Saint Helena, Ascension and Tristan da Cunha are 50 km/h in built-up areas, 80 km/h on rural roads, and 100 km/h on motorways.
Trucks and vehicles over 3.5 tonnes have lower limits.
Important: Posted signs always override default limits. Watch for temporary restrictions in construction zones, near schools, and in residential areas.
Speeding Fines and Penalties
Speeding fines in Saint Helena, Ascension and Tristan da Cunha vary based on how much you exceed the posted limit. Fines increase sharply for higher violations and may include licence points or driving bans for serious offences.
Traffic Rules and Regulations
Drive on the left side of the road. Overtake on the right. At roundabouts, enter clockwise (in left-hand traffic countries this varies — check signage) 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.
Drink-Driving Laws and Alcohol Limits
The legal blood alcohol limit in Saint Helena, Ascension and Tristan da Cunha is 0.05%. Penalties for drink-driving include heavy fines, licence confiscation, and potential imprisonment.
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
Winter tyres are not required in Saint Helena, Ascension and Tristan da Cunha. Standard tyres are sufficient for normal driving conditions.
The legal minimum tread depth is 1.6 mm.
Studded tyres are prohibited in Saint Helena, Ascension and Tristan da Cunha.
Driving License Requirements
Always carry your original driving licence — photocopies are not accepted.
Parking and Fuel
Parking rules vary by city. Look for designated parking areas and always check signs for time limits and payment requirements.
Most fuel stations accept major credit and debit cards. In rural areas, keep your tank above half — stations may be far apart.
Practical Driving Tips for Saint Helena, Ascension and Tristan da Cunha
- Download offline maps of Saint Helena, Ascension and Tristan da Cunha 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.
Emergency Numbers in Saint Helena, Ascension and Tristan da Cunha
These numbers are free to call and available 24/7. When calling, state your location and the nature of the emergency.
Avoid a fine in Saint Helena, Ascension and Tristan da Cunha
Who pays a driving fine abroad, the hire-car admin-fee trap, and how to appeal.
Read the fine guideDriving in Saint Helena, Ascension and Tristan da Cunha on a foreign licence
Nationality-specific licence, IDP & rules — pick where your licence is from:
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Frequently Asked Questions
In Saint Helena, Ascension and Tristan da Cunha, the default speed limits for passenger vehicles are: urban areas 50 km/h (31 mph), rural roads 80 km/h (49 mph), and motorways 100 km/h (62 mph). Always follow posted signs as limits may differ on specific roads.
In Saint Helena, Ascension and Tristan da Cunha, traffic drives on the left side of the road. Vehicles have the steering wheel on the right side. If you are visiting from a country that drives on the right, take extra care at intersections, roundabouts, and when overtaking.
Foreign visitors to Saint Helena, Ascension and Tristan da Cunha should carry an International Driving Permit alongside their valid national driving license. An IDP translates your license into multiple languages and is recognized internationally. Check with the embassy of Saint Helena, Ascension and Tristan da Cunha for the most current requirements.
Winter tyres in Saint Helena, Ascension and Tristan da Cunha are: Not Required. Regardless of legal requirements, winter tyres or all-season tyres with the appropriate markings (M+S or 3PMSF) are strongly recommended when temperatures drop below 7°C for improved safety and grip.
The general emergency number in Saint Helena, Ascension and Tristan da Cunha is 112. These numbers are free to call and available 24/7. When calling, be prepared to state your location and the nature of the emergency.
Using a hand-held mobile phone while driving is prohibited in Saint Helena, Ascension and Tristan da Cunha. Hands-free systems (Bluetooth, speakerphone, or mounted devices) are permitted. Penalties for mobile phone use while driving typically include fines. For safety, always use hands-free solutions or pull over to use your phone.
When driving in Saint Helena, Ascension and Tristan da Cunha, you should always carry: your valid driving license (and IDP if applicable), vehicle registration document, valid insurance certificate (Green Card for European countries), and your passport or national ID. Rental car drivers should also carry the rental agreement. Police may request these documents during routine checks.
Driving in Saint Helena, Ascension and Tristan da Cunha is generally safe for tourists who are prepared. Before driving, familiarize yourself with local traffic rules, road signs, and driving customs. Consider downloading offline maps, carrying emergency supplies, and purchasing comprehensive insurance. Avoid driving at night in unfamiliar areas if possible.
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