California Code, Code of Civil Procedure - CCP § 488.510

(a) Unless sooner released or discharged, any attachment shall cease to be of any force or effect, and the property levied upon shall be released from the operation of the attachment, at the expiration of three years from the date of issuance of the writ of attachment under which the levy was made.

(b) Notwithstanding subdivision (a), upon motion of the plaintiff, made not less than 10 or more than 60 days before the expiration of the three-year period and upon notice of not less than five days to the defendant whose property is attached, the court in which the action is pending may, by order filed prior to the expiration of the period and for good cause, extend the time of the attachment for a period not exceeding one year from the date on which the attachment would otherwise expire.

(c) The levying officer shall serve notice of the order upon any person holding property pursuant to an attachment and shall record or file the notice in any office where the writ and notice of attachment are recorded or filed prior to the expiration of the period described in subdivision (a) or any extension thereof. Where the attached property is real property, the plaintiff or the plaintiff's attorney, instead of the levying officer, may record the required notice.

(d) Any attachment may be extended from time to time in the manner prescribed in this section, but the maximum period of the attachment, including the extensions, shall not exceed eight years from the date of issuance of the writ of attachment under which the levy of attachment was made.

(e) The death of the defendant whose property is attached does not terminate the attachment.