California Code, Government Code - GOV § 75054

(a) The nonmember shall have the right to purchase service credit pursuant to the determination of the court required by Section 75050.

(b) The nonmember may purchase only that service credit which the court, pursuant to Section 75050 has determined to be the community property interest of the nonmember spouse.

(c) If the nonmember elects to purchase service credit, he or she shall pay, prior to retirement the contributions and interest required.

(d) The nonmember shall have no right to purchase service credit after the effective date of a refund of the accumulated contributions in the separate account of the nonmember.

(e) The member has no right to purchase the community property interest of the nonmember in the service credit whether or not the nonmember elects to purchase the service credit. However, any service credit eligible for purchase that is not explicity  1 awarded to the nonmember by the judgment or court order shall be deemed the exclusive property of the member.

(f) If the nonmember elected to purchase service credit upon retirement and has subsequently died, prior to completing the purchase, the board shall file a claim against the estate of the deceased to recover benefit payments which exceeded those for which payment was made.