(B) Except as provided in division (C)(1) of section
145.45 of the Revised Code, should a member die before age and service retirement, the member's accumulated contributions and any applicable amount calculated under section
145.401 of the Revised Code, shall be paid to the person or persons the member has designated under section
145.431 of the Revised Code. A member may designate two or more persons as beneficiaries to be paid the accumulated account in a lump sum. Subject to rules adopted by the public employees retirement board, a member who designates two or more persons as beneficiaries shall specify the percentage of the lump sum that each beneficiary is to be paid. If the member has not specified the percentages, the lump sum shall be divided equally among the beneficiaries.
The last designation of any beneficiary revokes all previous designations. The member's marriage, divorce, marriage dissolution, legal separation, or withdrawal of account, or the birth of the member's child, or adoption of a child, shall constitute an automatic revocation of the member's previous designation. If a deceased member was also a member of the school employees retirement system or the state teachers retirement system and a survivor benefit may be paid under section 145.37, 3307.57, or 3309.35 of the Revised Code, the beneficiary last established among the systems shall be the sole beneficiary in all the systems.
If the accumulated contributions of a deceased member are not claimed by a beneficiary or by the estate of the deceased member within five years after the death, the contributions shall remain in the employees' savings fund or may be transferred to the income fund and thereafter shall be paid to the beneficiary or to the member's estate upon application to the board. The board shall formulate and adopt the necessary rules governing all designations of beneficiaries.