Ga. Comp. R. & Regs. 513-5-1-.07
Benefits shall be payable during the lifetime of the beneficiaries, but when a beneficiary of a retired member passes away, that portion of the benefit payment would be terminated and would not be distributed to other named beneficiaries (inasmuch as the actuarial calculation of the percentage payment would be based on the beneficiaries' ages). No retiree's benefits shall be reduced by more than 50% in selecting a plan of retirement. Designated beneficiaries to receive monthly benefits normally could not be changed once a retired member began receiving monthly benefits, and the only exception to this Rule would occur in the event a retiree named a spouse to receive monthly benefits under one of the optional plans of retirement and later obtained a divorce.
Ga. Comp. R. & Regs. R. 513-5-1-.07
O.C.G.A. Sec. 47-3-26.