Government Code § 31764

Optional settlement 4 consists of the right to elect in writing to have a retirement allowance paid to the member until the member’s death and thereafter to have other benefits as are approved by the board, upon the advice of the actuary, continued throughout the life of and paid to the natural persons, having an insurable interest in the member’s life, as the member nominates by written designation duly executed and filed with the board at the time of retirement. The designation shall not, in the opinion of the board and the actuary, place any additional burden upon the retirement system.