Any notice required to be given by the director under this chapter may be served personally or by mail; if by mail, service shall be made by depositing the notice in the United States mail, in a sealed envelope with postage prepaid, addressed to the person on whom it is to be served at his or her address as it appears in the records of the city or as ascertained by the director. The service is complete at the time of the deposit of the notice in the United States mail, without extension of time for any reason. (Prior code § 41.09.137)