When must you turn on your headlights when driving?

Turning on your headlights at sunset, sunrise, or when visibility is less than 500 feet is crucial for ensuring safety on the road. Headlights enhance your visibility to other drivers and help you see the road better, particularly in low-light conditions such as dawn and dusk. Additionally, using headlights when visibility is limited—due to fog, heavy rain, snow, or other conditions—improves your ability to navigate safely and makes your vehicle more noticeable to others, reducing the likelihood of accidents.

The other options, while potentially situationally relevant, do not encompass the comprehensive guidelines set forth for safe driving practices. For example, using headlights only at night overlooks the necessity of using them during the day when visibility may be impaired. Similarly, relying solely on other conditions, like heavy traffic or rain, does not ensure consistent safety across varying driving environments. By adhering to the rule about using headlights at specific times and visibility conditions, drivers can maintain a standard of safety that benefits everyone on the road.