Ohio Rev. Code § 3501.40: Public officials' orders concerning elections.

Except as permitted under section 161.09 of the Revised Code, and notwithstanding any other contrary provision of the Revised Code, no public official shall cause an election to be conducted other than in the time, place, and manner prescribed by the Revised Code.

As used in this section, "public official" means any elected or appointed officer, employee, or agent of the state or any political subdivision, board, commission, bureau, or other public body established by law.