Upon the legal separation or dissolution of marriage of a participant, the court may include in the judgment or court order a determination of the community property rights of the parties in the participant’s annuity consistent with this section. Upon election under subparagraph (

B) of paragraph (3) of subdivision (

a) of

Section of the Family Code, the court order awarding the nonparticipant spouse a community property share in the benefits of a participant receiving an annuity shall be consistent with this section. (

a) If the court does not award the entire annuity to the participant and the participant is receiving an annuity under paragraph (1) or (2) of subdivision (

b) of

Section or paragraph (1) of subdivision (

a) of

Section 26807.5, the court shall require only that the system pay from the plan the nonparticipant spouse, by separate warrant, his or her community property share of the participant’s annuity, or the option beneficiary’s annuity or both. (

b) The nonparticipant spouse may designate a beneficiary to receive his or her community property share of the participant’s annuity.