When are you required to use headlights?

Using headlights is essential for enhancing visibility and ensuring safety on the road. The requirement to use headlights from half an hour before sunset until half an hour after sunrise is aligned with the principles of safe driving during periods when natural light is insufficient. This time frame signifies twilight and the onset of darkness, which reduces visibility for both drivers and other road users.

Moreover, using headlights in low visibility conditions, such as during rain, fog, or snow, is vital. It allows drivers to see the road and other vehicles more clearly while also making them more visible to others. Headlights play a crucial role in enhancing safety, as reduced visibility can significantly increase the likelihood of accidents.

The other options do not encompass the full scope of situations requiring the use of headlights. For instance, using headlights only during nighttime driving ignores the necessity of using them in various weather conditions and times when visibility is compromised. Similarly, limiting their use to foggy weather does not address nighttime driving or other low visibility conditions like heavy rain or snow. Lastly, stating that headlights should be used anytime on the highway does not reflect their proper use, as they are not needed during the daytime when visibility is clear. Thus, the comprehensive guideline provided in the correct answer is an important safety measure for all