Ohio Revised Code Title XXXIII. Education Libraries § 3309.02

(A) As used in this section, “armed forces” of the United States includes both:

(B) Upon presentation of an honorable discharge or certificate of service, and subject to rules adopted by the school employees retirement board, any member of the school employees retirement system who was a member with not less than one year of unadjusted service credit prior to active service in the armed forces of the United States subsequent to October 31, 1965, and who returns to service as an employee or as an employee in a capacity covered by either the public employees retirement system or the state teachers retirement system within two years after receiving such discharge or release, and establishes one year of service credit, shall have such service considered as prior service, provided that the total amount of such service granted by the board shall not exceed ten years. This section shall not serve to cancel any military service credit earned or granted prior to November 1, 1965.

(C) A member of the school employees retirement system is ineligible to receive service credit under this section for any year of military service credit used in the calculation of any retirement benefit currently being paid to the member or payable in the future under any other retirement program, except social security, or used to obtain service credit pursuant to section 3309.021 or 3309.022 of the Revised Code. At the time such credit is requested, the member shall certify on a form supplied by the retirement board that the member does and will conform to this requirement. This division does not cancel any military service credit earned prior to March 15, 1979.