California Code, Business and Professions Code - BPC § 2456.3

Except as provided in Section 2429, a license which has expired may be renewed at any time within five years after its expiration by filing an application for renewal on a form prescribed by the board and payment of all accrued renewal fees and any other fees required by Section 2455. Except as provided in Section 2456.2, renewal under this section shall be effective on the date on which the renewal application is filed, on the date on which the renewal fee or accrued renewal fees are paid, or on the date on which the delinquency fee or the delinquency fee and penalty fee, if any, are paid, whichever last occurs. If so renewed, the license shall continue in effect through the expiration date set forth in Section 2456.1 which next occurs after the effective date of the renewal.