When driving through tunnels in Italy, what is required?

When driving through tunnels in Italy, it is required to turn on your headlights. This requirement is in place for safety reasons, as tunnels can create low visibility conditions that make it difficult for drivers to see their surroundings, including other vehicles and potential hazards. By having headlights on, you increase your visibility to other drivers and ensure that you can see better within the tunnel.

In Italy, not using headlights in tunnels can lead to penalties, underscoring the importance of this requirement. Other options like driving at the speed limit or reducing speed may be prudent in certain circumstances, but the specific and mandatory action in tunnels is the use of headlights to ensure safety.