Ohio Rev. Code § 145.97: Deposits of members.

Each PERS defined contribution plan shall permit a member participating in the plan to do both of the following:

(A) If the member has withdrawn the amounts that have accumulated on behalf of the member under the plan, returns to employment covered under this chapter, and is participating in a plan that includes definitely determinable benefits, pay to the system the amounts withdrawn in accordance with rules adopted under section 145.80 of the Revised Code;

(B) Make additional deposits as permitted by the "Internal Revenue Code of 1986," 100 Stat. 2085, 26 U.S.C.A. 1, as amended.