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When should you use your headlights?


You must use your headlights from half an hour after sunset to half an hour before sunrise. You must also use your headlights whenever visibility is difficult at 1,000 feet. Also use your headlights to make yourself more visible to other drivers. Your parking lights are for parking, not driving. If you need more light while you drive, use your headlights, not your parking lights. [Reduced Light, Special Driving Conditions, Wyoming Rules of the Road]