California Code, Family Code - FAM § 1502

(a) A premarital agreement or other marital property agreement that is executed and acknowledged or proved in the manner that a grant of real property is required to be executed and acknowledged or proved may be recorded in the office of the recorder of each county in which real property affected by the agreement is situated.

(b) Recording or nonrecording of a premarital agreement or other marital property agreement has the same effect as recording or nonrecording of a grant of real property.