California Code, Probate Code - PROB § 3612

(a) Notwithstanding any other provision of law and except to the extent the court orders otherwise, the court making the order under Section 3611 shall have continuing jurisdiction of the money and other property paid, delivered, deposited, or invested under this article until the minor reaches 18 years of age.

(b) Notwithstanding subdivision (a), the trust of an individual who meets the definition of a person with a disability under paragraph (3) of subdivision (b) of Section 3603 and who reaches 18 years of age, shall continue and be under continuing court jurisdiction until terminated by the court.