California Code, Government Code - GOV § 21292

(a) The nonmember who is awarded a separate account shall have the right to a refund of the accumulated contributions in the separate account of the nonmember.

(b) The nonmember shall file an application on a form provided by this system to obtain the refund.

(c) The refund shall be effective when this system deposits in the United States mail an initial warrant drawn in favor of the nonmember and addressed to the latest address for the nonmember on file with this system.

(d) The nonmember is deemed to have permanently waived all rights in this system and all rights to any future retirement benefits pertaining to the service credit accumulated contributions, or both, when the refund becomes effective.

(e) The nonmember may not cancel a refund once it has become effective.

(f) The nonmember shall have no right to elect to redeposit the refunded accumulated contributions from the nonmember's account after the refund is effective, and shall have no right to redeposit under Section 20750 or 20752, or to purchase service credit under Article 4 (commencing with Section 20990) or Article 5 (commencing with Section 21020) of Chapter 11 after the refund becomes effective.

(g) If at the time of the marriage dissolution or legal separation, the member does not have the necessary minimum credited service to retire, the nonmember shall receive a refund of the accumulated contributions placed in the nonmember's account.