Any notice, demand, request, or other instrument which may be or is required to be given under this Lease shall be delivered in person or sent by United States certified or registered mail, postage prepaid and shall be addressed (a) if to Landlord, at the place specified for payment of rent, which is set forth in the Lease Summary, and (b) if to Tenant at the address set forth in the Lease Summary. Either party may designate such other address as shall be given by written notice.