Ohio Revised Code Title XLIX. Public Utilities § 4955.43

(A) At least ninety days prior to the date of first operation of a railroad quiet zone established pursuant to section 4955.42 of the Revised Code, the municipal corporation or township shall provide detailed, written notice of the established zone by certified mail, return receipt requested, to each railroad operating over a public grade crossing included in the zone, the highway or traffic control authority or law enforcement authority having responsibility for control of vehicular traffic at the crossings, the public utilities commission, the director of public safety, and the associate administrator for safety for the federal railroad administration.

(B) For each railroad quiet zone established pursuant to section 4955.42 of the Revised Code, the commission shall issue an order expressly prohibiting any engineer or other person in charge of a locomotive from sounding any locomotive whistle, horn, bell, or other audible warning device within the distance of each public crossing in the zone, as that distance is designated in the order of the commission.