All notices and other communications required or permitted under this Agreement shall be in writing and, if mailed by prepaid first-class mail or certified mail, return receipt requested, shall be deemed to have been received on the earlier of the date shown on the receipt or three (3) business days after the postmarked date thereof. In addition, notices hereunder may be delivered by hand, facsimile transmission or overnight courier, in which event the notice shall be deemed effective when delivered or transmitted.