Ohio Revised Code Title XXXV. Elections § 3511.14

(A) A board of elections shall accept and process federal write-in absentee ballots for all elections for office and for all ballot questions and issues as required under “The Uniformed and Overseas Citizens Absentee Voting Act,” Pub. L. No. 99-410, 100 Stat. 924,42 U.S.C. 1973ff, et seq., as amended.

(B) A uniformed services or overseas voter may use the declaration accompanying a federal write-in absentee ballot to apply to register to vote simultaneously with the submission of the federal write-in absentee ballot, if the declaration is received not later than thirty days before the day of the election. If the declaration is received after that date, the declaration shall be considered an application to register to vote for all subsequent elections.