When operating a motorcycle on the road: Question When operating a motorcycle on the road: Answers Only the rear light must be on. Only the headlight must be on. Both the headlight and rear light must always be on. The headlight only needs to be on between sunset and sunrise. Explanation Use your lights to help communicate your presence to other road users. In New York State, it is required for a motorcycle's headlight and rear light to be on any time the motorcycle is being operated on a roadway.