California Code, Code of Civil Procedure - CCP § 700.150

(a) Subject to Section 700.160, to levy upon property in a safe-deposit box, the levying officer shall personally serve a copy of the writ of execution and a notice of levy on the financial institution with which the safe-deposit box is maintained.

(b) At the time of the levy or promptly thereafter, the levying officer shall serve a copy of the writ of execution and a notice of levy on any third person in whose name the safe-deposit box stands. Service shall be made personally or by mail.

(c) During the time the execution lien is in effect, the financial institution may not permit the removal of any of the contents of the safe-deposit box except as directed by the levying officer.

(d) Upon receipt of a garnishee's memorandum from the financial institution indicating a safe-deposit box is under levy, the levying officer shall promptly mail a written notice to the judgment creditor demanding an additional fee as required by Section 26723 of the Government Code, plus the costs to open the safe-deposit box and seize and store the contents. The levying officer shall release the levy on the safe-deposit box if the judgment creditor does not pay the required fee, plus costs, within three business days plus the extended time period specified in subdivision (a) of Section 1013 for service by mail by the levying officer.

(e) The levying officer may first give the person in whose name the safe-deposit box stands an opportunity to open the safe-deposit box to permit the removal pursuant to the levy of the property levied upon. The financial institution may refuse to permit the forcible opening of the safe-deposit box to permit the removal of the property levied upon unless the levying officer or the judgment creditor pays in advance the cost of forcibly opening the safe-deposit box and of repairing any damage caused thereby.

(f) The levying officer shall give the judgment creditor at least three court days' advance notice of the date and time the levying officer will open the safe-deposit box and seize the contents thereof, and the judgment creditor shall be entitled to be present at that time.

(g) During the time the execution lien is in effect, the financial institution is not liable to any person for any of the following:

(h) If the levying officer removes any property from the safe-deposit box to satisfy the levy, but allows other property to remain in the safe-deposit box, the execution lien is released automatically with respect to any property that remains in the safe-deposit box.