All notices or other communications required or permitted hereunder shall be in writing and shall be deemed duly given (a) if by personal delivery, when so delivered, (b) if mailed, three (3) business days after having been sent by registered or certified mail, return receipt requested, postage prepaid and addressed to the intended recipients at the addresses set forth on the signature page(s), or (c) if sent through an overnight delivery service in circumstances to which such service guarantees next day delivery, the day following being so sent to the addresses of the parties as indicated on the signature page(s) hereto. Any party may change the address to which notices and other communications hereunder are to be delivered by giving the other parties notice in the manner herein set forth.