California Code, Family Code - FAM § 2554

(a) Notwithstanding any other provision of this division, in any case in which the parties do not agree in writing to a voluntary division of the community estate of the parties, the issue of the character, the value, and the division of the community estate may be submitted by the court to arbitration for resolution pursuant to Chapter 2.5 (commencing with Section 1141.10) of Title 3 of Part 3 of the Code of Civil Procedure, if the total value of the community and quasi-community property in controversy in the opinion of the court does not exceed fifty thousand dollars ($50,000).  The decision of the court regarding the value of the community and quasi-community property for purposes of this section is not appealable.

(b) The court may submit the matter to arbitration at any time it believes the parties are unable to agree upon a division of the property.