California Laws|Section 484.070.

                                                
484.070.  
(a) If the defendant claims that the personal property described in the plaintiff’s application, or a portion of such property, is exempt from attachment, the defendant shall claim the exemption as provided in this section. If the defendant fails to make the claim or makes the claim but fails to prove that the personal property is exempt, the defendant may not later claim the exemption except as provided in Section 482.100.
(b) If the defendant desires to claim at the
hearing that real or personal property not described in the plaintiff’s application or real property described in the plaintiff’s application is exempt from attachment, in whole or in part, the defendant shall claim the exemption as provided in this section. Failure to make the claim does not preclude the defendant from later claiming the exemption. If the claim is made as provided in this section but the defendant fails to prove that the property is exempt from attachment, the defendant may not later claim that the property, or a portion thereof, is exempt except as provided in Section 482.100.
(c) The claim of exemption shall:
(1) Describe the property claimed to be exempt.
(2) Specify the statute section supporting the claim.
(d) The claim of
exemption shall be accompanied by an affidavit supporting any factual issues raised by the claim and points and authorities supporting any legal issues raised.
(e) The claim of exemption, together with any supporting affidavit and points and authorities, shall be filed and served on the plaintiff not less than five court days before the date set for the hearing.
(f) If the plaintiff desires to oppose the claim of exemption, the plaintiff shall file and serve on the defendant, not less than two days before the date set for the hearing, a notice of opposition to the claim of exemption, accompanied by an affidavit supporting any factual issues raised and points and authorities supporting any legal issues raised. If the plaintiff does not file and serve a notice of opposition as provided in this subdivision, no writ of attachment shall be issued as to the property claimed to be
exempt. If all of the property described in the plaintiff’s application is claimed to be exempt and the plaintiff does not file and serve a notice of opposition as provided in this subdivision, no hearing shall be held and no right to attach order or writ of attachment shall be issued and any temporary protective order issued pursuant to Chapter 6 (commencing with Section 486.010) immediately expires.
(g) If the plaintiff files and serves a notice of opposition to the claim as provided in this section, the defendant has the burden of proving that the property is exempt from attachment.