When should headlights be used?

Using headlights in inclement weather and during dusk or dawn is essential for ensuring visibility and safety on the road. Inclement weather, such as rain, fog, snow, or heavy mist, can significantly reduce visibility, making it difficult for drivers to see other vehicles, road signs, and pedestrians. In such conditions, headlights help illuminate the road and allow others to see your vehicle more clearly, which is crucial for accident prevention.

Additionally, during dusk or dawn, the natural light conditions can change rapidly, creating a scenario where visibility is compromised. It is important to use headlights during these times to ensure you are visible to other drivers and can see the road ahead clearly.

The other options are limited in scope. Headlights should not be restricted to just nighttime hours, as visibility can be poor at various times throughout the day. It is also not advisable to use headlights only when driving in the city, as rural areas or highways may also require their use under specific conditions. Finally, driving with headlights on at all times, while beneficial for visibility, may not be necessary in bright daylight conditions unless specified by local laws, which can vary by state. Therefore, the most comprehensive practice is to use headlights in inclement weather and during times of reduced visibility.