When must you use headlights during daylight hours in Virginia?

Using headlights during daylight hours in Virginia is required when visibility is less than 500 feet due to adverse weather conditions such as rain or fog. This regulation is in place to ensure that drivers can see and be seen on the road, enhancing safety for all travelers. Poor visibility conditions can be deceptive, as they might not seem severe at first glance; therefore, having your headlights on during these times significantly improves the chances of being noticed by other drivers, pedestrians, and cyclists.

In contrast, it's not necessary to use headlights whenever it is sunny, as bright weather typically provides sufficient visibility without additional illumination. The requirement also doesn't hinge on the city or rural driving context, nor is it limited only to night driving, emphasizing that the primary concern is visibility rather than time of day or location. This approach to safety reflects a practical understanding of how weather affects driving conditions.