Code Civ. Proc., § 1952

(a) The clerk shall retain in his or her custody any exhibit, deposition, or administrative record introduced in the trial of a civil action or proceeding or filed in the action or proceeding until the final determination thereof or the dismissal of the action or proceeding, except that the court may order the exhibit, deposition, or administrative record returned to the respective party or parties at any time upon oral stipulation in open court or by written stipulation by the parties or for good cause shown.

(b) No exhibit or deposition shall be ordered destroyed or otherwise disposed of pursuant to this section where a party to the action or proceeding files a written notice with the court requesting the preservation of any exhibit, deposition, or administrative record for a stated time, but not to exceed one year.

(c) Upon the conclusion of the trial of a civil action or proceeding at which any exhibit or deposition has been introduced, the court shall order that the exhibit or deposition be destroyed or otherwise disposed of by the clerk. The operative destruction or disposition date shall be 60 days following final determination of the action or proceeding. Final determination includes final determination on appeal. Written notice of the order shall be sent by first-class mail to the parties by the clerk.

(d) Upon the conclusion of any posttrial hearing at which any exhibit, deposition, or administrative record has been introduced, the court shall order that the exhibit or deposition be destroyed or otherwise disposed of by the clerk. The operative date of destruction or disposition shall be 60 days following the conclusion of the hearing, or if an appeal is taken, upon final determination of the appeal. Written notice of the order shall be sent by first-class mail to the parties by the clerk.