Cal. Fam. Code § 2337
(c) The court may impose upon a party any of the following conditions on granting a severance of the issue of the dissolution of the status of the marriage, and in case of that party’s death, an order of any of the following conditions continues to be binding upon that party’s estate:
(7)
(B) Except upon a showing of good cause, this paragraph does not apply to any of the following:
(9) Upon a showing that circumstances exist that would place a substantial burden of enforcement upon either party’s community property rights or would eliminate the ability of the surviving party to enforce his or her community property rights if the other party died before the division and distribution or compliance with any court-ordered payment of any community property interest therein, including, but not limited to, a situation in which preemption under federal law applies to an asset of a party, or purchase by a bona fide purchaser has occurred, the court may order a specific security interest designed to reduce or eliminate the likelihood that a postmortem enforcement proceeding would be ineffective or unduly burdensome to the surviving party. For this purpose, those orders may include, but are not limited to, any of the following:
(d) Prior to, or simultaneously with, entry of judgment granting dissolution of the status of the marriage, all of the following shall occur:
(2) To preserve the claims of each spouse in all retirement plan benefits upon entry of judgment granting a dissolution of the status of the marriage, the court shall enter one of the following in connection with the judgment for each retirement plan in which either party is a participant:
(C) An attachment to the judgment granting a dissolution of the status of the marriage, as follows:
EACH PARTY (insert names and addresses) IS PROVISIONALLY AWARDED WITHOUT PREJUDICE AND SUBJECT TO ADJUSTMENT BY A SUBSEQUENT DOMESTIC RELATIONS ORDER, A SEPARATE INTEREST EQUAL TO ONE-HALF OF ALL BENEFITS ACCRUED OR TO BE ACCRUED UNDER THE PLAN (name each plan individually) AS A RESULT OF EMPLOYMENT OF THE OTHER PARTY DURING THE MARRIAGE OR DOMESTIC PARTNERSHIP AND PRIOR TO THE DATE OF SEPARATION. IN ADDITION, PENDING FURTHER NOTICE, THE PLAN SHALL, AS ALLOWED BY LAW, OR IN THE CASE OF A GOVERNMENTAL PLAN, AS ALLOWED BY THE TERMS OF THE PLAN, CONTINUE TO TREAT THE PARTIES AS MARRIED OR DOMESTIC PARTNERS FOR PURPOSES OF ANY SURVIVOR RIGHTS OR BENEFITS AVAILABLE UNDER THE PLAN TO THE EXTENT NECESSARY TO PROVIDE FOR PAYMENT OF AN AMOUNT EQUAL TO THAT SEPARATE INTEREST OR FOR ALL OF THE SURVIVOR BENEFIT IF AT THE TIME OF THE DEATH OF THE PARTICIPANT, THERE IS NO OTHER ELIGIBLE RECIPIENT OF THE SURVIVOR BENEFIT.