All notices, instructions (pursuant to a Joint Written Direction or otherwise), approvals, consents, requests, and other communications hereunder shall be in writing and shall be deemed to have been given (a) when such writing is delivered by hand or overnight delivery service, or (b) upon telephone call-back in accordance with Section 16 below, after being sent by e-mail with PDF attachment from the designated e-mail account(s) of the sending person(s) as designated on Schedule A hereto to the designated e-mail account(s) of the receiving person(s) as designated on Schedule A hereto or (c) three (3) Business Days after being mailed by first class mail (postage prepaid), in each case to the address set forth on Schedule A hereto or to such other address as each party hereto may designate for itself by like notice.