Cal. Gov. Code § 31619

Remaining net earnings, after the sequential application of Sections 31615 and 31616 and Section 31617, if applicable, and Section 31618 shall be credited to all contributions, reserves, and accounts in the retirement fund, except the Contingency Reserve Account, in the manner prescribed in Section 31615, except that no further interest shall be credited to the Supplemental Retiree Benefit Reserve, established pursuant to Section 31618.