What requirement does Virginia law impose regarding headlights during inclement weather?

Virginia law mandates that headlights must be used when visibility is reduced to 500 feet. This requirement is crucial for ensuring the safety of all road users during conditions such as rain, fog, or heavy snow, where visibility can be significantly diminished. By turning on headlights, drivers improve their visibility to others and enhance their ability to see the road ahead, thereby reducing the likelihood of accidents. It is important for drivers to be aware of and comply with these regulations, as they are designed to promote safety in adverse weather conditions, highlighting the critical role that visibility plays in safe driving practices.