Ohio Rev. Code § 3503.17: Precinct boundary changes.

When a new precinct has been created, or the boundaries thereof have been changed, the election authorities shall correct and transfer the registration forms of registered electors whose voting precincts have thus been changed and shall notify such registrants by mail. The registration of an elector shall not be invalidated by such alteration or transfer nor shall the right of any registered elector to vote be prejudiced by any error in making out the certified list of registered voters.