California Business And Professions Code Section 9731

If a person fails to apply for a license renewal, no renewal license shall be issued except upon payment of the delinquent renewal fee required under Section 9750.5. No person who fails to renew his or her license within one year of the expiration date can engage in any of the activities authorized by a license unless he or she first files the application required for an original license, pays the original license fee, and otherwise complies with all of the provisions of this act pertaining to the issuance of an original license.