Ohio Rev. Code Ann. § 4511.213
(A) The driver of a motor vehicle, upon approaching a stationary public safety vehicle, emergency vehicle, road service vehicle, vehicle used by the public utilities commission to conduct motor vehicle inspections in accordance with sections 4923.04 and 4923.06 of the Revised Code, or a highway maintenance vehicle that is displaying the appropriate visual signals by means of flashing, oscillating, or rotating lights, as prescribed in section 4513.17 of the Revised Code, shall do either of the following:
(D)