When must headlights be used?

The use of headlights is crucial for ensuring safety while driving under various conditions. Headlights must be turned on from sunset to sunrise as well as during low visibility situations, such as fog, rain, or heavy snow. This requirement is designed to enhance visibility for the driver and make the vehicle more visible to others on the road, thus reducing the risk of accidents.

In low visibility conditions, headlights help in illuminating the roadway and allowing the driver to see potential hazards more clearly. Similarly, they serve to alert other road users to the presence of the vehicle, which is especially important at night or in poor weather conditions when visibility is compromised.

Other options suggesting limited use of headlights, such as only during the day, only in urban areas, or only when driving at a certain speed, do not account for the full range of situations where headlights are necessary for safe driving. It's important for all drivers to adhere to the regulations concerning the use of headlights to maintain safety on the road.