Final answer:
In North Carolina, during inclement weather that requires windshield wipers, all drivers must turn on their headlights for safety and visibility.
Step-by-step explanation:
In the state of North Carolina (NC), when there is inclement weather requiring the use of windshield wipers, all motorists are required to turn on their headlights. This law ensures that vehicles are visible to other drivers during adverse weather conditions, such as rain, snow, fog, or any situation that would necessitate the use of windshield wipers. This measure is part of a safety protocol to reduce the risk of accidents during poor visibility conditions.