Ohio Rev. Code § 4909.36
If any public utility has accepted any rate, price, charge, toll, or rental fixed by ordinance of a municipal corporation or ordinances of a group of municipal corporations, it shall become operative, unless a complaint signed by not less than ten per cent of the qualified electors of such municipal corporation or not less than ten per cent of the qualified electors of each municipal corporation in such group has been filed with the public utilities commission within sixty days after such acceptance. Upon such filing, the commission shall forthwith give notice of the filing and pendency of such complaint to the mayor of such municipal corporation or the mayors of the group of municipal corporations, and fix a time and place for the hearing of such complaint. The commission shall, at such time and place, hear such complaint, and may adjourn the hearing from day to day.
The filing of a complaint by a public utility, as provided in section 4909.34 of the Revised Code, shall be held to be the consent of such public utility to continue to furnish its product or service, and devote its property engaged in so furnishing its product or service to such public use during the term so fixed by ordinance or by Chapters 4901., 4903., 4905., 4907., 4909., 4921., and 4923. of the Revised Code. Parties to the complaint shall be entitled to be heard, represented by counsel, and to have process to force the attendance of witnesses.
R.C. § 4909.36