California Code, Education Code - EDC § 27401

(a) For purposes of this chapter, “nonparticipant spouse” means a participant's spouse or former spouse who is being or has been awarded a community property interest in the benefits determined by reference to the amounts credited to a participant's employee and employer accounts or the participant's annuity. A nonparticipant spouse who is awarded separate nominal accounts is not a participant in the Cash Balance Benefit Program. A nonparticipant spouse who receives or is awarded an interest in a participant's annuity is not a participant in the Cash Balance Benefit Program.

(b) For purposes of this chapter, a participant's registered domestic partner or former registered domestic partner who is being or has been awarded a community property interest in the benefits determined by reference to the amounts credited to a participant's employee and employer accounts or the participant's annuity shall be treated in the same manner as a nonparticipant spouse.