Cal. Gov't Code § 29802

(a) Unless otherwise provided by ordinance, any warrant issued is void if not presented to the county treasurer for payment within six months after its date.
Whenever, under the provisions of this section, warrants drawn on trust funds became void, the moneys in the county treasury represented by the warrants may be transferred to the general fund of the county by the county auditor unless disposition is otherwise provided by law.
(b) Any time within two years from the date on which the original warrant became void, the payee or assignee of any warrant which is void as provided in this section may present the warrant to the governing body of the agency on which the warrant was drawn, or declare by affidavit that the warrant has been lost or destroyed, and the governing body may by resolution authorize the auditor to draw new warrants within the limitations prescribed by the resolution without prior individual order of the governing body, provided the limitations prescribed by this section have been complied with. The new warrant shall be subject to the same limitations as the original warrant which it replaces.
(c) If, at any time after a period of two years from the date on which the original warrant became void, or during such other period of time as specified by ordinance, the payee or assignee presents such warrant to the governing body of the agency on which the warrant was drawn, the governing body may adopt an order instructing the county auditor to draw a new warrant in favor of the payee or assignee in the same amount as the original warrant, or the governing body, by resolution, may authorize the auditor, without prior individual order of the governing body, to draw warrants within the limitations prescribed by the resolution in any case in which the auditor determines that it would be inequitable or unreasonable not to draw the warrant, and money is available in the county treasury to make payment on the indebtedness. If the auditor deems it necessary, he or she may present a voided warrant to the governing body for its review, approval, and appropriation of funds. Any such new warrant shall be subject to the same limitations as the original warrant which it replaces.