In which distance should you lower your headlight beams when meeting another vehicle at night?

• A. 500 feet
• B. 300 feet
• C. 1000 feet
• D. 200 feet

Answer: (A)

Dimming to low beams when you’re approaching an oncoming vehicle is essential to prevent glare from blinding the other driver. The standard threshold is to switch to low beams by the time you are within five hundred feet of the oncoming vehicle. This distance balances your visibility with the other driver's comfort and reaction time. If you wait longer, you risk dazzling them; turning them down earlier isn’t necessary when there’s no oncoming traffic to worry about. The other distances listed don’t match this rule: a thousand feet is too far to require dimming for meeting traffic, a distance around three hundred feet relates more to following another vehicle than to an oncoming one, and two hundred feet is still within the five-hundred-foot window, but the established point to lower beams when meeting is five hundred feet.