(a) Immediately upon issuance by an Issuer of any Facility Letter of Credit in accordance with the procedures set forth in Section 2.15.3, each Lender shall be deemed to have irrevocably and unconditionally purchased and received from such Issuer, without recourse or warranty, an undivided interest and participation equal to its Pro Rata Share of such Facility Letter of Credit (including, without limitation, all obligations of the applicable Borrower with respect thereto) and any security therefor or guaranty pertaining thereto; provided , that a Facility Letter of Credit issued by an Issuer shall not be deemed to be a Facility Letter of Credit for purposes of this Section 2.15.5 if such Issuer shall have received written notice from any Lender on or before one Business Day prior to the date of its issuance of such Facility Letter of Credit that one or more of the conditions contained in Sections 4.1 or 4.2 are not then satisfied, and, in the event an Issuer receives such a notice, it shall have no further obligation to issue any Facility Letter of Credit until such notice is withdrawn by that Lender or such condition has been effectively waived in accordance with the provisions of this Agreement.