Cal. PROB § 734

(a) In cases not governed by subdivision (b) or (c), after the death of the depositor an attorney may terminate a deposit by personal delivery of the document to the depositor’s personal representative. (b) If the document is a will and the attorney has actual notice that the depositor has died but does not have actual notice that a personal representative has been appointed for the depositor, an attorney may terminate a deposit only as provided in Section 8200. (c) If the document is a trust, after the death of the depositor an attorney may terminate a deposit by personal delivery of the document either to the depositor’s personal representative or to the trustee named in the document.