Final answer:
In Ohio, it is illegal to drive with only parking lights on at dusk and dawn; full headlights are required for proper visibility and safety.
Step-by-step explanation:
In Ohio, it is not legal to drive with only your parking lights illuminated at twilight hours, such as dusk and dawn. Ohio law requires that vehicles use their full headlights during these times for optimal visibility. Parking lights are not designed to provide adequate illumination for driving, but rather to make a parked car visible to other drivers in dark situations. Operating a vehicle with only parking lights at dawn or dusk compromises safety and does not adhere to Ohio traffic laws. Therefore, drivers are expected to turn on their headlights during low light conditions for the safety of all road users.