When must drivers switch from high-beam to low-beam headlights?

Drivers are required to switch from high-beam to low-beam headlights when a vehicle is approaching within 500 feet. This rule is crucial for ensuring the safety of both the oncoming driver and the driver using the headlights. High beams can significantly impair the vision of oncoming drivers, as they produce a bright and intense light that can create glare.

Switching to low-beam headlights allows for clearer visibility for both the driver and those approaching. Low beams provide adequate illumination for the driver’s path without causing excessive glare for others on the road. This practice is part of responsible driving habits to enhance safety for all road users.

While other conditions may require drivers to switch to low beams, the 500-foot rule specifically addresses the situation of oncoming traffic. In addition, driving closely behind another vehicle or when visibility is reduced also calls for the use of low beams, but these rules are based on different contexts. Knowing the correct distance for switching headlights is integral to safe driving practices.