Ohio Administrative Code|Rule 4501-15-06 | Spot lights and auxiliary driving lights.

                                                
Spot lights and auxiliary driving lights shall be constructed and installed so as to provide adequate and reliable illumination and shall conform to the appropriate S.A.E. Standards for Spot Lamps, Front Fog Lamps, Auxiliary Driving Lamps.
(A) Fog lamps  -- Any motor vehicle may be equipped with a maximum of two fog lamps mounted on the front at a height not less than twelve inches nor more than thirty inches above the level surface upon which the vehicle stands and so aimed that when the vehicle is loaded none of the high-intensity portion of the light to the left of the center of the vehicle shall at a distance of twenty-five feet ahead project higher than a level of four inches below the level of the center of the lamp from which it comes. Lighted fog lamps meeting the above requirements may be used with lower headlamp beams as specified in paragraph (C)(2) of rule 4501-15-01 of the Administrative Code.
(B) Auxiliary low-beam lamp -- Any motor vehicle may be equipped with a maximum of one auxiliary passing lamp mounted on the front at a height not less than sixteen inches nor more than forty-two inches above the level surface upon which the vehicle stands. The provisions of section 4513.17 of the Revised Code shall apply to any combination of headlamps and auxiliary passing lamps.
(C) Auxiliary driving lamps -- Any motor vehicle may be equipped with a maximum  two auxiliary driving lamps mounted on the front at a height not less than sixteen inches nor more than forty-two inches above the level surface upon which the vehicle stands. The provisions of section 4513.17 of the Revised Code shall apply to any combination of headlamps and auxiliary driving lamps.