Eligibility of members of the public employees retirement system, including for members described in section 145.196 of the Revised Code and other than those subject to section 145.332 of the Revised Code, for age and service retirement shall be determined under this section.
An employer may, except as otherwise provided in the "Age Discrimination in Employment Act of 1967," as amended, 81 Stat. 602, 29 U.S.C. 621 to 634, as of the thirtieth day of June of any year, terminate the employment of any member who has attained the age of seventy years. A member may at the time of retirement by written designation duly executed and filed with the public employees retirement board designate a beneficiary to receive any installment which may remain unpaid at the time of death. Except as provided in section 145.46 of the Revised Code, after the date of retirement such nomination shall not be changed if the member elects to receive the member's retirement allowance computed as provided in section 145.46 of the Revised Code as a joint-life plan or multiple-life plan.
R.C. § 145.32