When should you dim your headlights for an approaching vehicle?

Dimming your headlights for an approaching vehicle is required at a distance of 500 feet. This practice is essential for safety, as high beams can be blinding to oncoming drivers, increasing the risk of accidents. By dimming your lights at this distance, you allow the driver of the approaching vehicle to maintain their visibility without distraction or impairment, thereby promoting safer driving conditions for everyone on the road.

This rule is part of the guidelines to ensure mutual respect and safety among drivers, which is crucial during the night when visibility is reduced. The requirement to dim at 500 feet is based on the average stopping distance and reaction time, allowing adequate space for both drivers to see each other clearly. Using your high beams beyond this range can create a dangerous situation, as it can blind the other driver, leading to potential crashes.