Gov. Code, § 20590

(a) Notwithstanding any other provision of this article, the board may enter into an agreement with the governing body of a contracting agency, other than a housing authority, and the governing body of a city with a population in excess of 2,000,000 and maintaining its own retirement system, for termination of the contracting agency’s participation in this system and inclusion of the employees in the city retirement system.

(b) The agreement shall contain provisions the board finds necessary to protect the interests of this system, including provisions for determination of the amount, time, and manner of transfer of cash or securities, or both, to be transferred to the city system representing the value of the interests in the retirement fund of the contracting agency and its employees by reason of contributions and interest credited to the agency and its employees. The agreement may also contain any other provisions that the board deems necessary to address issues related to the transfer, including, but not limited to, benefits subject to an outstanding domestic relations order and benefits subject to a lien.

(c) All liability of this system with respect to members and retired persons under the contract shall cease and shall become the liability of the city system as of the date of termination specified in the agreement. Liability of the city system shall be for payment of benefits to persons retired on the termination date and their beneficiaries and of beneficiaries of deceased members in at least the amount provided under the agency’s contract as it was on that date. The termination may not affect the contribution rate of any member in any other employment under this system on the date of termination or any retirement allowance or other benefit based on service.

(d) Any member who becomes a member of a city system upon the contract termination shall be subject to those provisions of this part extending rights to a member or subjecting the member to limitations because of membership in another retirement system to the same extent that the member would have been had he or she been a member of the city system during his or her membership in this system under the terminated contract.