Government Code § 21474

(a) The Return of Remaining Contributions Option 1 consists of the right to have a retirement allowance paid to a member until his or her death and if he or she dies before he or she receives in annuity payments the amount of his or her accumulated contributions at retirement, to have the balance at death paid to his or her beneficiary or beneficiaries.

(b) This section shall apply to any member who retires on or after January 1, 2018.