Ohio Revised Code Title XXXIII. Education Libraries § 3309.473

(1) The member has earned a minimum of one year of service credit subsequent to the date of the member's return to employment as a contributor to the system.

(2) The member returned to employment as a contributor not later than the first day of classes of the third school year following the date of resignation.

Service credit purchased under this section may not exceed the lesser of two years or an amount equal to the period from the effective date of the resignation to the date of return to employment as a contributor.  Service credit may be purchased for more than one period of resignation due to pregnancy or adoption of a child, but the total service credit purchased may not exceed two years.  The member must submit evidence satisfactory to the school employees retirement board documenting that the resignation was due to pregnancy or adoption of a child and that the member meets the requirement in division (A)(1) of this section.

(1) The member shall pay to the system for credit to the member's accumulated account an amount equal to the member's contributions for full-time employment for the first year of service subsequent to the member's return to employment as a contributor, plus compound interest thereon at a rate established by the board, from the date of the member's return to employment as a contributor to the date of payment.

(2) The member's employer at the time of resignation shall pay an amount certified by the system, which shall be an amount equal to the employer contribution for full-time employment for the member's first year of service subsequent to the member's return to employment as a contributor, plus compound interest thereon at a rate established by the board, from the date of the member's return to employment as a contributor to the date of payment.