(a) Upon the death of a person who is married or in a registered domestic partnership, one-half of the community property belongs to the surviving spouse and the other one-half belongs to the decedent.(b) Notwithstanding subdivision (a), spouses may agree in writing to divide their community property on the basis of a non pro rata division of the aggregate value of the community property or on the basis of a division of each individual item or asset of community property, or partly on each basis. Nothing in this subdivision shall be construed to require this written agreement in order to permit or recognize a non pro rata division of community property.Amended by Stats 2016 ch 50 (SB 1005),s 79, eff. 1/1/2017.