California Code, Probate Code - PROB § 9703

(a) Upon application of the personal representative, the court may, with or without notice, order that money or other personal property be deposited pursuant to Section 9700 or 9701 and be subject to withdrawal only upon authorization of the court.

(b) The personal representative shall deliver a copy of the court order to the financial institution or trust company at the time the deposit is made.

(c) No financial institution or trust company accepting a deposit pursuant to Section 9700 or 9701 shall be on notice of the existence of an order that the money or other property is subject to withdrawal only upon authorization of the court unless it has actual notice of the order.