Exhibit 99.1350CERT
Certification Pursuant to Rule 30a-2(b) under the 1940 Act and
Section 906 of the Sarbanes Oxley Act
Pursuant to 18 U.S.C. § 1350, the undersigned officer of CMA Treasury Fund and Master Treasury LLC
(the “registrants”), hereby certifies, to the best of his knowledge, that the registrants' Report on Form N-
CSR for the period ended March 31, 2009, (the “Report”) fully complies with the requirements of Section
15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report
fairly presents, in all material respects, the financial condition and results of operations of the registrants.
Date: May 20, 2009
/s/ Donald C. Burke
Donald C. Burke
Chief Executive Officer (principal executive officer) of
CMA Treasury Fund and Master Treasury LLC
Pursuant to 18 U.S.C. § 1350, the undersigned officer of CMA Treasury Fund and Master Treasury LLC
(the “registrants”), hereby certifies, to the best of his knowledge, that the registrants' Report on Form N-
CSR for the period ended March 31, 2009, (the “Report”) fully complies with the requirements of Section
15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report
fairly presents, in all material respects, the financial condition and results of operations of the registrants.
Date: May 20, 2009
/s/ Neal J. Andrews
Neal J. Andrews
Chief Financial Officer (principal financial officer) of
CMA Treasury Fund and Master Treasury LLC
This certification is being furnished pursuant to Rule 30a-2(b) under the Investment Company Act of 1940,
as amended, and 18 U.S.C. Section 1350 and is not being filed as part of the Form N-CSR with the
Securities and Exchange Commission.
