Any notice required or permitted by this Agreement shall be in writing and shall be deemed sufficient (a) upon receipt, when delivered personally or by courier, (b) the next business day after sent, when sent by overnight delivery service, (c) upon delivery if given by electronic mail during normal business hours of the recipient, and if not sent during normal business hours, then on the recipient’s next business day, or (d) three (3) business days after being deposited in the U.S. mail as certified or registered mail, return receipt requested, with postage prepaid, if in each instance such notice is addressed to the party to be notified at such Party’s address as set forth on the signature pages hereto or as subsequently modified by written notice.