Any notice required hereunder shall (a) be delivered by hand or (b) sent by registered or certified mail addressed to the other party hereto at its address set forth above for the Company and the last known address for Employee. Any such notice shall become effective (i) if mailed, on the date indicated on the receipt or if not accepted, the date indicated that delivery was attempted, and (ii) in the case of delivery by hand, upon delivery or attempted delivery as shown on the records of the deliveries.