Ohio Revised Code Title XXXIII. Education Libraries § 3309.33

(A) An employer may establish a retirement incentive plan for its employees who are members of the school employees retirement system. The plan shall provide for purchase by the employer of service credit for eligible employees who choose to participate in the plan and for payment by the employer of the entire cost of such service credit. A plan established under this section shall remain in effect until terminated by the employer, except that, once established, the plan must remain in effect for at least one year.

(B) An employee who is a member of the school employees retirement system shall be eligible to participate in a retirement incentive plan established by the employer if the employee has attained fifty-seven years of age and agrees to retire and retires under section 3309.36 of the Revised Code effective within ninety days after receiving notice from the school employees retirement system that service credit has been purchased for the employee under this section.

(C) Participation in the plan shall be available to all eligible employees except that the employer may limit the number of persons for whom it purchases credit in any calendar year to a specified percentage of its employees who are members of the school employees retirement system on the first day of January of that year. The percentage shall not be less than five per cent of such employees. If participation is limited, employees with a greater length of service with the employer have the right to elect to have credit purchased before employees with a lesser length of service with the employer.

(D) The amount of service credit purchased for any participant shall be uniformly determined but shall not exceed the lesser of the following: