All notices required or permitted hereunder shall be in writing and deemed effectively given upon personal delivery, delivery by Federal Express or other recognized overnight delivery service or upon deposit in the United States Post Office, by registered or certified mail, postage prepaid, return receipt requested, if to the Company at its executive offices and if to Grantee at the address shown beneath his or her signature to this Agreement, or in either case at such other address or addresses as either party shall designate to the other in accordance with this Section.