All notices, requests or other communications provided for in this Award Agreement shall be made in writing either (a) by actual delivery to the party entitled thereto, (b) by mailing in the United   States mails to the last known address of the party entitled thereto, via certified or re gistered mail, postage prepaid and return receipt requested, (c) by electronic mail, utilizing notice of undelivered electronic mail features or (d) by telecopy with confirmation of receipt.  The notice, request or other communication shall be deemed to be received (a) in case of delivery, on the date of its actual receipt by the party entitled thereto, (b) in case of mailing by certified or registered mail, five days following the date of such mailing, (c) in case of electronic mail, on the date of mailing but only if a notice of undelivered electronic mail is not received or (d) in case of telecopy, on the date of confirmation of receipt.