Any notice or document required or permitted to be delivered hereunder shall be in writing and shall be effective upon delivery if personally delivered or sent by overnight courier, or three (3) Business Days after mailing if mailed via US Mail. All notices shall be personally delivered, delivered by overnight courier or sent by United States Mail, postage prepaid, Certified or Registered Mail, addressed to the parties hereto at the respective addresses set forth on the signature pages, or at such other address as they may have theretofore specified by written notice delivered in accordance herewith. Any party hereto, at any time, by written notice given to the other in accordance with this Section, may designate a different address to which such communications shall thereafter be directed.