Ohio Revised Code Title I. State Government § 145.471

(A)(1) On and after December 13, 2000, the public employees retirement board shall credit interest to the individual accounts of contributors, except that interest shall not be credited to the individual account of a PERS or other system retirant, as defined in section 145.38 of the Revised Code, for contributions received during the period described in division (B)(4)(a) or (b) of section 145.38 of the Revised Code. For amounts deposited by a contributor under section 145.62 or the version of division (C) of section 145.23 of the Revised Code as it existed immediately prior to the effective date of this amendment, interest or earnings shall be credited in accordance with that section and former division.

(2) Except as provided in section 145.472 of the Revised Code, the board shall not credit interest to individual accounts for the period beginning December 31, 1958, and ending on December 13, 2000.