All notices concerning this Agreement, other than the day-to-day communications between the Parties, shall be in writing and shall be sent to the relevant address set forth below. The Parties may designate other addressees or addresses by notice to the other Party. A notice shall be deemed effective (a) when given by hand delivery; (b) three days after deposit into the U.S. mail, postage prepaid; or (c) one business day after deposit with commercial overnight delivery service, charges prepaid.