Ohio Rev. Code Ann. § 705.05

In any municipal corporation in which a plan of government provided in sections 705.41 to 705.86, inclusive, of the Revised Code, has been adopted, any of the supplementary propositions not previously adopted may, at any municipal election, be independently submitted to the electors in the manner provided by sections 705.01 to 705.04, inclusive, of the Revised Code. If the proposition to adopt such a plan is rejected by the electors of a municipal corporation, it shall not again be submitted in that municipal corporation within one year after such rejection.