Ohio Revised Code Title III. Counties § 302.03

(A) The board of county commissioners of any county may, by a two-thirds vote of the board, or shall, upon petition by three per cent of the electors of the county as determined by the number of votes cast therein for the office of governor at the most recent gubernatorial election, by resolution, cause the board of elections in the county to submit to the electors of the county the question of adopting one of the alternative forms of county government authorized by sections 302.01 to 302.24 of the Revised Code.  The question shall be voted upon at the next general election occurring not less than ninety days after the certification of the resolution to the board of elections.

(B) If, in any county, a resolution is adopted by the board of county commissioners requiring that the question of choosing a commission to frame a county charter be submitted to the electors thereof prior to the resolution provided for in this section, the proposition to adopt an alternative form of county government provided in sections 302.01 to 302.24 of the Revised Code, shall not be submitted in that county as long as the question of choosing such commission or of adopting a charter framed by such commission is pending therein.

(C) Any proposition for an alternative form of county government shall specify the number of members of the board of county commissioners, how many shall be elected at large, or how many shall be elected by districts.