The last designation of any beneficiary revokes all previous designations. The contributor's marriage, divorce, marriage dissolution, legal separation, or refund under section 145.63 of the Revised Code, or the birth of the contributor's child, or adoption of a child, shall constitute an automatic revocation of the contributor's previous designation.
If the deposits of a deceased contributor are not claimed by a beneficiary or by the estate of the deceased contributor within five years, the deposits shall be transferred to the income fund and thereafter paid to the beneficiary or to the contributor's estate on application to the system. The board shall formulate and adopt the necessary rules governing all designations of beneficiaries.
If the beneficiary is deceased or is not located within ninety days, the beneficiary ceases to qualify for any benefit and the beneficiary next in order of precedence shall qualify as a beneficiary.
Any payment made to a beneficiary as determined by the board shall be a full discharge and release to the board from any future claims.
R.C. §145.65