Ohio Rev. Code § 3505.20
Any person offering to vote may be challenged at the polling place by any precinct election official. If the board of elections has ruled on the question presented by a challenge prior to election day, its finding and decision shall be final, and the voting location manager shall be notified in writing. If the board has not ruled, the question shall be determined as set forth in this section. If any person is so challenged as unqualified to vote, the voting location manager shall tender the person the following oath: "You do swear or affirm under penalty of election falsification that you will fully and truly answer all of the following questions put to you concerning your qualifications as an elector at this election."
If the person offering to vote claims to be a naturalized citizen of the United States, the person shall, before the vote is received, produce for inspection of the precinct election officials a certificate of naturalization and declare under oath that the person is the identical person named in the certificate. If the person states under oath that, by reason of the naturalization of the person's parents or one of them, the person has become a citizen of the United States, and when or where the person's parents were naturalized, the certificate of naturalization need not be produced. If the person is unable to provide a certificate of naturalization on the day of the election, the precinct election officials shall provide to the person, and the person may vote, a provisional ballot under section 3505.181 of the Revised Code. The provisional ballot shall not be counted unless it is properly completed and the board of elections determines that the voter is properly registered and eligible to vote in the election.
If the precinct election officials are unable to verify the person's eligibility to cast a ballot in the election, the precinct election officials shall provide to the person, and the person may vote, a provisional ballot under section 3505.181 of the Revised Code. The provisional ballot shall not be counted unless it is properly completed and the board of elections determines that the voter is properly registered and eligible to vote in the election.
The precinct election officials shall direct an individual who is not in the appropriate polling place to the appropriate polling place. If the individual refuses to go to the appropriate polling place, or if the precinct election officials are unable to verify the person's eligibility to cast a ballot in the election, the precinct election officials shall provide to the person, and the person may vote, a provisional ballot under section 3505.181 of the Revised Code. The provisional ballot shall not be counted unless it is properly completed and the board of elections determines that the voter is properly registered and eligible to vote in the election.
If the precinct election officials are unable to verify the person's age and eligibility to cast a ballot in the election, the precinct election officials shall provide to the person, and the person may vote, a provisional ballot under section 3505.181 of the Revised Code. The provisional ballot shall not be counted unless it is properly completed and the board of elections determines that the voter is properly registered and eligible to vote in the election.
The voting location manager shall put such other questions to the person challenged as are necessary to determine the person's qualifications as an elector at the election. If a person challenged refuses to answer fully any question put to the person, is unable to answer the questions as they were answered on the registration form by the person under whose name the person offers to vote, or refuses to sign the person's name or make the person's mark, or if for any other reason a majority of the precinct election officials believes the person is not entitled to vote, the precinct election officials shall provide to the person, and the person may vote, a provisional ballot under section 3505.181 of the Revised Code. The provisional ballot shall not be counted unless it is properly completed and the board of elections determines that the voter is properly registered and eligible to vote in the election.
A qualified citizen who has certified the citizen's intention to vote for president and vice-president as provided by Chapter 3504. of the Revised Code shall be eligible to receive only the ballot containing presidential and vice-presidential candidates.
However, not later than the thirtieth day before the day of an election and in accordance with section 3503.24 of the Revised Code, any person qualified to vote may challenge the right of any other person to be registered as a voter, or the right to cast an absent voter's ballot, or to make application for such ballot. Such challenge shall be made in accordance with section 3503.24 of the Revised Code, and the board of elections of the county in which the voting residence of the challenged voter is situated shall make a final determination relative to the legality of such registration or application.
R.C. § 3505.20