Each Party shall deliver all notices, requests, consents, claims, demands, waivers and other communications under this Agreement in writing and addressed to the other Party at its address set forth below (or to such other address that the receiving Party may designate from time to time in accordance with this section). Each Party shall deliver all n otices by personal delivery, nationally recognized overnight courier, or certified or registered mail (in each case, return receipt requested, postage prepaid). Except as otherwise provided in this Agreement, a n otice is effective only upon on receipt or refusal.