337.16. Number of lights; limitations on flashing, oscillating or rotating lights.
   (a)   Whenever a motor vehicle equipped with headlights is also equipped with any auxiliary lights or spotlight or any other light on the front thereof projecting a beam of an intensity greater than 300 candle power, not more than a total of five of any such lights on the front of a vehicle shall be lighted at any one time when such vehicle is upon a highway.
   (b)   Any lighted light or illuminating device upon a motor vehicle, other than headlights, spotlights, signal lights or auxiliary driving lights, which projects a beam of light of an intensity greater than 300 candle power shall be so directed that no part of the beam will strike the level of the roadway on which the vehicle stands at a distance of more than seventy-five feet from the vehicle.
   (c)   Flashing lights are prohibited on motor vehicles, except as a means of indicating a right or a left turn, or in the presence of a vehicular traffic hazard requiring unusual care in approaching, or overtaking or passing. This prohibition does not apply to emergency vehicles, road service vehicles servicing or towing a disabled vehicle, traffic line stripers, snow plows, rural mail delivery vehicles, vehicles transporting preschool children as provided in Ohio R.C. 4513.182, Ohio Department of Transportation maintenance vehicles, funeral hearses, funeral escort vehicles and similar equipment operated by the Department or local authorities, which shall be equipped with and display, when used on a street or highway for the special purpose necessitating such lights, a flashing, oscillating or rotating amber light, but shall not display a flashing, oscillating or rotating light of any other color, nor to vehicles or machinery permitted by Section 337.10 to have a flashing red light.
   (d)   Except a person operating a public safety vehicle, or a school bus, no person shall operate, move or park upon or permit to stand within the right of way of any public street or highway any vehicle or equipment which is equipped with and displaying a flashing red or a flashing combination red and white light, or an oscillating or rotating red light, or a combination red and white oscillating or rotating light; and except a public law enforcement officer, or other person sworn to enforce the criminal and traffic laws of the State or Municipality, operating a public safety vehicle when on duty, no person shall operate, move or park upon, or permit to stand within the right of way of any street or highway any vehicle or equipment which is equipped with, or upon which is mounted, and displaying a flashing blue or a flashing combination blue and white light, or an oscillating or rotating blue light, or a combination blue and white oscillating or rotating light. This section shall not prohibit the use of warning lights required by law or the simultaneous flashing of turn signals on disabled vehicles.
(ORC 4513.17)