Ohio Revised Code Title XXXV. Elections § 3501.011

(A) Except as otherwise provided in divisions (B) and (C) of this section, and except as otherwise provided in any section of Title XXXV of the Revised Code to the contrary, as used in the sections of the Revised Code relating to elections and political communications, whenever a person is required to sign or affix a signature to a declaration of candidacy, nominating petition, declaration of intent to be a write-in candidate, initiative petition, referendum petition, recall petition, or any other kind of petition, or to sign or affix a signature on any other document that is filed with or transmitted to a board of elections or the office of the secretary of state, “sign” or “signature” means that person's written, cursive-style legal mark written in that person's own hand.

(B) For persons who do not use a cursive-style legal mark during the course of their regular business and legal affairs, “sign” or “signature” means that person's other legal mark that the person uses during the course of that person's regular business and legal affairs that is written in the person's own hand.

(C) Any voter registration record requiring a person's signature shall be signed using the person's legal mark used in the person's regular business and legal affairs. For any purpose described in division (A) of this section, the legal mark of a registered elector shall be considered to be the mark of that elector as it appears on the elector's voter registration record.