Any written notices required in this Agreement may be made by personal delivery, facsimile, electronic mail, overnight or other delivery service, or first class mail. Notices by facsimile or electronic mail will be effective when transmission is complete and confirmed; notices by personal delivery will be effective upon delivery; notices by overnight or other delivery services will be effective when delivery is confirmed; and notices by mail will be effective four business days after mailing. The notice address for each party is set forth below the signatures, and is subject to change upon written notice thereof.