(a) Unless otherwise specifically provided, whenever a notice is required to be given pursuant to any Section of this Code such notice shall be given either by personal delivery to the person to be notified or by deposit in the United States Mail in a sealed envelope, postage prepaid, addressed to the person to be notified at his last known business or residence address as the same appears in the public records or other records pertaining to the matter for which such notice is served, or by any other method of delivery approved by law. Service by mail shall be deemed to have been completed at the time of deposit in the post office or any United States mailbox.
(b) Proof of giving any notice may be made by the certificate of any officer or employee of the Village or by affidavit of any person over the age of eighteen (18) years who actually accomplished personal service in conformity with this Code or other provisions of law applicable to the subject matter concerned, or by a return receipt signed by the recipient notified by United States Mail.