Ohio Rev. Code § 745.07
An ordinance passed pursuant to section 745.06 of the Revised Code shall not take effect until submitted to the electors of the municipal corporation, at a special or general election held in the municipal corporation at such time as the legislative authority determines, and approved by a majority of the electors voting on it. The ordinance shall be passed by an affirmative vote of not less than a majority of the members of the legislative authority and shall be subject to the approval of the mayor as provided by law. The ordinance shall specify the form or phrasing of the question to be placed upon the ballot. Thirty days' notice of the election shall be given by publication once a week for two consecutive weeks in a newspaper of general circulation in the municipal corporation or as provided in section 7.16 of the Revised Code. If the board of elections operates and maintains a web site, notice of the election also shall be posted on that web site for thirty days prior to the election. The notice shall contain the full form or phrasing of the question to be submitted. The clerk of the legislative authority shall certify the passage of the ordinance to the officers having control of elections in the municipal corporation, who shall cause the question to be voted on at the general or special election as specified in the ordinance.
R.C. § 745.07