Ohio Rev. Code Ann. § 3307.25
(D) An individual is ineligible to make an election under this section if one of the following applies:
(F)
(1) When a member elects under division (E) of this section to change from an STRS defined contribution plan to the STRS defined benefit plan the system shall do all of the following:
(a) Transfer from the member's account in the defined contribution fund to an account in the teachers' savings fund the sum of the following:
(b) Transfer from the defined contribution fund to the employers' trust fund the sum of the following: