Brazil vs Argentina: Driving Rules Compared

Brazil’s Lei Seca set a hard 0.0 g/L drink-driving limit back in 2012, and it still stands — there is no legal margin at all. Argentina allows up to 0.05 g/L and posts a faster 130 km/h motorway limit against Brazil’s 110. Both countries drive on the right, so the alcohol rule and the speed gap are what actually change when you cross the border.

Brazil vs Argentina: Driving Rules Compared

Planning a trip between Brazil and Argentina? Understanding the differences in driving regulations can save you from fines and make your journey safer. This comparison covers speed limits, tyre requirements, licence rules, and key traffic laws in both countries.

💡 Try it yourself: World Speed Limit Map — Brazil and Argentina side by side with 193 other countries, free.

Speed Limits

Speed limits differ between Brazil and Argentina. In Brazil, the default motorway speed limit is 110 km/h, while Argentina sets it at 130 km/h. Urban and rural limits also vary, so always watch for posted signs.

Driving Side

Brazil drives on the right side of the road, while Argentina drives on the right. Both countries drive on the same side, making the transition easier.

Alcohol Limits

The legal BAC limit in Brazil is 0.00% (zero tolerance), compared to 0.05% in Argentina. Penalties for drink-driving are severe in both countries and can include fines, licence suspension, and imprisonment.

Tyre Requirements

Both countries have specific tyre regulations. Check the comparison table below for details on winter tyre mandates, minimum tread depth, and studded tyre rules.

Documentation

Carry your driving licence, vehicle registration, and insurance documents at all times. An International Driving Permit may be required depending on your nationality and the duration of your stay.