California Code, Code of Civil Procedure - CCP § 708.450

(a) If a lien is created under this article, the judgment debtor may claim that all or any portion of the money or property that the judgment debtor may recover in the action or special proceeding is exempt from enforcement of a money judgment. The claim shall be made by application on noticed motion to the court in which the action or special proceeding is pending, filed and served on the judgment creditor not later than 30 days after the judgment debtor has notice of the creation of the lien. Service shall be made personally or by mail. The judgment debtor shall execute an affidavit in support of the application that includes all the matters set forth in subdivision (b) of Section 703.520. No notice of opposition to the claim of exemption is required. The failure of the judgment debtor to make a claim of exemption under this section constitutes a waiver of the exemption.

(b) The court may determine the exemption claim at any time prior to the entry of judgment in the action or special proceeding or may consolidate the exemption hearing with the hearing on a motion pursuant to Section 708.470.

(c) If the judgment debtor establishes to the satisfaction of the court that the right of the judgment debtor to money or property under the judgment in the action or special proceeding is all or partially exempt from enforcement of a money judgment, the court shall order the termination of the lien created under this article on the exempt portion of the money or property.