UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-6196 811-21298 Name of Fund: CMA Treasury Fund Master Treasury Trust Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Terry K. Glenn, President, CMA Treasury Fund and Master Treasury Trust, 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (609) 282-2800 Date of fiscal year end: 03/31/04 Date of reporting period: 04/01/03 - 09/30/03 Item 1 - Attach shareholder report (BULL LOGO) Merrill Lynch Investment Managers www.mlim.ml.com CMA Treasury Fund Semi-Annual Report September 30, 2003 This report is not authorized for use as an offer of sale or a solicitation of an offer to buy shares of the Fund unless accompanied or preceded by the Fund's current prospectus. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. Past performance results shown in this report should not be considered a representation of future performance, which will fluctuate. Statements and other information herein are as dated and are subject to change. CMA Treasury Fund Box 9011 Princeton, NJ 08543-9011 CMA Treasury Fund Officers and Trustees Terry K. Glenn, President and Trustee Ronald W. Forbes, Trustee Cynthia A. Montgomery, Trustee Charles C. Reilly, Trustee Kevin A. Ryan, Trustee Roscoe S. Suddarth, Trustee Richard R. West, Trustee Edward D. Zinbarg, Trustee Cindy V. Macaulay, Vice President Donald C. Burke, Vice President and Treasurer Phillip S. Gillespie, Secretary Custodian State Street Bank and Trust Company P.O. Box 351 Boston, MA 02101 Transfer Agent Financial Data Services, Inc. 4800 Deer Lake Drive East Jacksonville, FL 32246-6484 800-221-7210* *For inquiries regarding your CMA account, call 800-CMA-INFO (800-262-4636). Electronic Delivery The Fund is now offering electronic delivery of communications to its shareholders. In order to receive this service, you must register your account and provide us with e-mail information. To sign up for this service, simply access this website http://www.icsdelivery.com/live and follow the instructions. When you visit this site, you will obtain a personal identification number (PIN). You will need this PIN should you wish to update your e-mail address, choose to discontinue this service and/or make any other changes to the service. This service is not available for certain retirement accounts at this time. CMA TREASURY FUND, SEPTEMBER 30, 2003 A Letter From the President Dear Shareholder Now in its final quarter, 2003 has been a meaningful year in many respects. After one of the most significant equity market downturns in many investors' memories, this year finally brought hopeful signs for a sustainable economic recovery. Sub par economic growth of 1.4% in the first quarter of 2003 increased to projected growth of more than 4% in the second half of the year. With that good news, fixed income investments, which had become the asset class of choice during the long equity market decline, faced new challenges. Earlier in the year, the Federal Reserve Board continued its accommodative monetary policy, lowering the Federal Funds rate in June to 1%, its lowest level since 1958. With this move, long-term interest rates continued to be volatile, as investors began to anticipate the impact of future Federal Reserve Board moves and economic revitalization. As of September 30, 2003, the ten-year Treasury bond was yielding 3.96%. This compared to a yield of 3.83% six months earlier and 3.63% one year ago. Against this backdrop, our portfolio managers continued to work diligently to deliver on our commitment to provide superior performance within reasonable expectations for risk and return. With that said, remember also that the advice and guidance of a skilled financial advisor often can mean the difference between successful and unsuccessful investing. A financial professional can help you choose those investments that will best serve you as you plan for your financial future. Finally, I am proud to premiere a new look to our shareholder communications. Our portfolio manager commentaries have been trimmed and organized in such a way that you can get the information you need at a glance, in plain language. Today's markets are confusing enough. We want to help you put it all in perspective. The report's new size also allows us certain mailing efficiencies. Any cost savings in production or postage are passed on to the Fund and, ultimately, to Fund shareholders. We thank you for trusting Merrill Lynch Investment Managers with your investment assets, and we look forward to serving you in the months and years ahead. Sincerely, (Terry K. Glenn) Terry K. Glenn President and Trustee CMA TREASURY FUND, SEPTEMBER 30, 2003 A Discussion With Your Fund's Portfolio Manager We took advantage of declining interest rates during the period by increasing our holdings in the longer end of the yield curve. How did the Fund perform in light of the existing market conditions? For the six-month period ended September 30, 2003, CMA Treasury Fund paid shareholders a net annualized dividend of .47%.* The Fund's seven-day yield as of September 30, 2003 was .34%. The average portfolio maturity for CMA Treasury Fund at September 30, 2003 was 66 days, compared to 59 days at March 31, 2003. At the start of the six-month period, investors were anticipating that an economic recovery was imminent. Economic growth began to show improvement, with 3.3% gross domestic product growth registered in the second quarter of 2003 and projected growth of greater than 4% for the second half of 2003. In June, the Federal Reserve Board continued its easing of monetary policy, dropping the Federal Funds rate to 1%, its lowest level in 45 years. Based on this scenario, we adopted a more conservative strategy in managing the Fund. While Federal Reserve Board policy was extremely accommodative, we would not expect interest rates to remain at historical lows for a prolonged period of time. Nevertheless, fear of deflation, coupled with lack of job growth, gave us comfort that the Federal Reserve Board would not shift monetary policy and increase interest rates for some time. Adding to the general market and economic dynamics during the period were supply factors. At the beginning of the period, the U.S. Treasury was issuing more front-end Treasury bills and notes than ever before to cover a growing deficit. This, and the reintroduction of the three-year Treasury note in the refunding cycle, led to a steeper yield curve, with higher yields on the longer end of the curve. *Based on a constant investment throughout the period, with dividends compounded daily, and reflecting a net return to the investor after all expenses. How did you manage the Fund during the period? At the beginning of the period we believed that interest rates were at their height, so we increased our holdings in the longer end of the yield curve (the one-year - two-year range). As the period progressed and the yield curve steepened, we gradually moved our average life from the 60-day range to the 70-day area. Our sector of choice for yield and price appreciation became the two- year sector. Although we participated actively in the short end, we used the long end of the curve to add yield. Since we believed that the yields would remain stable for the near term, we concentrated more on the three-month - six-month sector in the shorter end of our investment universe. Recently, decreased issuance of one-month bills had us rolling fewer of those maturities and concentrating more heavily in the three-month sector. As interest rates rallied late in the period, interest rates between three-month and six-month securities compressed, prompting us to favor the three-month bills for relative value reasons. How would you characterize the Fund's position at the close of the period? We believe the Fund is well positioned going forward. We plan to maintain a longer average life, as the Federal Reserve Board has stated it will be slow to increase interest rates to ensure the economy's recovery. Our high liquidity base offers us opportunities to become more involved if interest rates move higher. We will continue to look for opportunities to add to the Fund's average life and for trading opportunities in two-year notes when interest rates back up. We expect that the Fund will experience heavy cash inflows in December, as many investors shift their assets into Treasury funds for year-end tax advantages. Because much of this money will be redeemed in January, we have been careful to avoid issues maturing in December and place maturities in January to generate yield and meet the seasonal redemptions that follow the year-end influx. Cindy V. Macaulay Vice President and Portfolio Manager October 16, 2003 CMA TREASURY FUND, SEPTEMBER 30, 2003 Statement of Assets and Liabilities As of September 30, 2003 Assets Investments in Master Treasury Trust, at value (identified cost--$756,044,778) $ 756,441,369 Prepaid registration fees and other assets 87,249 --------------- Total assets 756,528,618 --------------- Liabilities Payables: Distributor $ 263,150 Other affiliates 29,672 Administrator 20,285 313,107 --------------- Accrued expenses and other liabilities 10,756 --------------- Total liabilities 323,863 --------------- Net Assets Net assets $ 756,204,755 =============== Net Assets Consist of Shares of beneficial interest, $.10 par value, unlimited number of shares authorized $ 75,580,816 Paid-in capital in excess of par 680,227,348 Unrealized appreciation on investments from the Trust--net 396,591 --------------- Net Assets--Equivalent to $1.00 per share based on 755,808,164 shares of beneficial interest outstanding $ 756,204,755 =============== See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Statement of Operations For the Six Months Ended September 30, 2003 Investment Income from the Trust Net investment income allocated from the Trust: Interest $ 6,312,998 Expenses (1,295,732) --------------- Net investment income from the Trust 5,017,266 --------------- Expenses Administration fees $ 1,423,681 Distribution fees 709,450 Registration fees 61,300 Transfer agent fees 50,628 Professional fees 21,369 Printing and shareholder reports 14,678 Accounting services 389 Pricing fees 24 Other 1,815 --------------- Total expenses 2,283,334 --------------- Investment income--net 2,733,932 --------------- Realized & Unrealized Gain (Loss) on Investments from the Trust--Net Realized gain on investments from the Trust--net 45,024 Change in unrealized appreciation on investments from the Trust--net (135,598) --------------- Total realized and unrealized loss from the Trust--net (90,574) --------------- Net Increase in Net Assets Resulting from Operations $ 2,643,358 =============== See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Statements of Changes in Net Assets For the Six For the Months Ended Year Ended September 30, March 31, Increase (Decrease) in Net Assets: 2003 2003++ Operations Investment income--net $ 2,733,932 $ 15,893,821 Realized gain on investmentsand from the Trust--net 45,024 168,340 Change in unrealized appreciation on investments and from the Trust--net (135,598) (675,537) --------------- --------------- Net increase in net assets resulting from operations 2,643,358 15,386,624 --------------- --------------- Dividends & Distributions to Shareholders Investment income--net (2,733,932) (15,893,821) Realized gain on investments--net (45,024) (168,339) --------------- --------------- Net decrease in net assets resulting from dividends and distributions to shareholders (2,778,956) (16,062,160) --------------- --------------- Beneficial Interest Transactions Net proceeds from sale of shares 477,729,717 5,730,013,423 Value of shares issued to shareholders in reinvestment of dividends and distributions 659,176 16,062,015 --------------- --------------- Total shares issued 478,388,893 5,746,075,438 --------------- --------------- Cost of shares redeemed (600,840,445) (5,921,853,991) Shares redeemed in connection with the bulk transfer of WCMA shareholder assets (418,757,596) -- --------------- --------------- Total shares redeemed (1,019,598,041) (5,921,853,991) --------------- --------------- Net decrease in net assets derived from beneficial interest transactions (541,209,148) (175,778,553) --------------- --------------- Net Assets Total decrease in net assets (541,344,746) (176,454,089) Beginning of period 1,297,549,501 1,474,003,590 --------------- --------------- End of period $ 756,204,755 $ 1,297,549,501 =============== =============== ++On February 13, 2003, the Fund converted from a stand-alone investment company to a "feeder" fund that seeks to achieve its investment objective by investing all of its assets in the Trust, which has the same investment objective as the Fund. All investments will be made at the Trust level. This structure is sometimes called a "master/feeder" structure. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Financial Highlights The following per share data and ratios have been derived For the Six from information provided in the financial statements. Months Ended September 30, For the Year Ended March 31, Increase (Decrease) in Net Asset Value: 2003 2003++ 2002 2001 2000 Per Share Operating Performance Net asset value, beginning of period $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ---------- ---------- ---------- ---------- ---------- Investment income--net .0023 .0111 .0248 .0530 .0434 Realized and unrealized gain (loss) on investments and from the Trust--net (.0001) .0004 .0004 .0007 .0004 ---------- ---------- ---------- ---------- ---------- Total from investment operations .0022 .0107 .0252 .0537 .0438 ---------- ---------- ---------- ---------- ---------- Less dividends and distributions: Investment Income--net (.0023) (.0111) (.0248) (.0530) (.0434) Realized gain on investments--net --** (.0001) (.0003) (.0004) (.0001) ---------- ---------- ---------- ---------- ---------- Total dividends and distributions (.0023) (.0112) (.0251) (.0534) (.0435) ---------- ---------- ---------- ---------- ---------- Net asset value, end of period $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ========== ========== ========== ========== ========== Total Investment Return .47%* 1.11% 2.48% 5.48% 4.44% ========== ========== ========== ========== ========== Ratios to Average Net Assets Expenses .63%*++++ .61%++++ .61% .61% .57% ========== ========== ========== ========== ========== Investment income and realized gain on investments--net .49%* 1.10% 2.43% 5.38% 4.38% ========== ========== ========== ========== ========== Supplemental Data Net assets, end of period (in thousands) $ 756,205 $1,279,550 $1,474,004 $1,532,543 $2,594,450 ========== ========== ========== ========== ========== *Annualized. **Amount is less than $(.0001) per share. ++On February 13, 2003, the Fund converted from a stand-alone investment company to a "feeder" fund that seeks to achieve its investment objective by investing all of its assets in the Trust, which has the same investment objective as the Fund. All investments will be made at the Trust level. This structure is sometimes called a "master/feeder" structure. ++++Includes the Fund's share of the Trust's allocated expenses. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Notes to Financial Statements 1. Significant Accounting Policies: CMA Treasury Fund (the "Fund") is registered under the Investment Company Act of 1940, as amended, as a no load, diversified, open-end management investment company. The fund seeks to achieve its investment objective by investing all of its assets in the Master Treasury Trust (the "Trust"), which has the same investment objective as the Fund. The value of the Fund's investment in the Trust reflects the Fund's proportionate interest in the net assets of the Trust. The performance of the Fund is directly affected by the performance of the Trust. The financial statements of the Trust, including the Schedule of Investments, are included elsewhere in this report and should be read in conjunction with the Fund's financial statements. The Fund's financial statements are prepared in conformity with accounting principles generally accepted in the United States of America, which may require the use of management accruals and estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to a fair statement of the results for the interim period presented. All such adjustments are of a normal, recurring nature. The percentage of the Trust owned by the Fund at September 30, 2003 was 64.6%. The following is a summary of significant accounting policies followed by the Fund. (a) Valuation of investments--The Fund records its investment in the Trust at fair value. Valuation of securities held by the Trust is discussed in Note 1a of the Trust's Notes to Financial Statements, which are included elsewhere in this report. (b) Investment income and expenses--The Fund records daily its proportionate share of the Trust's income, expenses and realized and unrealized gains and losses. In addition, the Fund accrues its own expenses. (c) Income taxes--It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Therefore, no Federal income tax provision is required. (d) Prepaid registration fees--Prepaid registration fees are charged to expense as the related shares are issued. (e) Dividends and distributions to shareholders--The Fund declares dividends daily and reinvests daily such dividends (net of non-resident alien tax and backup withholding tax withheld) in additional fund shares at net asset value. Dividends and distributions are declared from the total of net investment income and net realized gain or loss on investments. (f) Investment transactions--Investment transactions in the Trust are accounted for on a trade date basis. 2. Investment Advisory Agreement and Transactions with Affiliates: The Fund has entered into an Administration Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), a wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. The Fund pays a monthly fee at an annual rate of .25% of the Fund's average daily net assets for the performance of administrative services (other than investment advice and related portfolio activities) necessary for the operation of the Fund. The Fund has adopted a Distribution and Shareholder Servicing Plan in compliance with Rule 12b-1 under the Investment Company Act of 1940, pursuant to which Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), a subsidiary of ML & Co., receives a distribution fee from the Fund. The fee is accrued daily and paid monthly at the annual rate of .125% of average daily net assets of the Fund for shareholders who maintain their accounts through MLPF&S. The distribution fee is to compensate MLPF&S financial advisors and other directly involved branch office personnel for selling shares of the Fund and for providing direct personal services to shareholders. The distribution fee is not compensation for the administrative and operational services rendered to the Fund by MLPF&S in processing share orders and administering shareholder accounts. Financial Data Services, Inc. ("FDS"), a wholly-owned subsidiary of ML & Co., is the Fund's transfer agent. For the six months ended September 30, 2003, the Fund reimbursed FAM $389 for certain accounting services. Certain officers and/or trustees of the Fund are officers and/or directors of FAM, PSI, FDS, and/or ML & Co. 3. Transactions in Shares of Beneficial Interest: The number of shares sold, reinvested and redeemed during the periods corresponds to the amounts included in the Statements of Changes in Net Assets for net proceeds from sale of shares, value of shares reinvested and cost of shares redeemed, respectively, since shares are recorded at $1.00 per share. CMA TREASURY FUND, SEPTEMBER 30, 2003 Schedule of Investments Master Treasury Trust (In Thousands) Face Interest Maturity Issue Amount Rate Date Value U.S. Government Obligations*--103.4% U.S. Treasury Bills $115,733 0.91 - 0.96 % 10/02/2003 $ 115,727 81,431 0.86 - 0.881 10/09/2003 81,413 137,606 0.872 - 0.875 10/16/2003 137,553 140,393 0.855 - 0.912 10/23/2003 140,315 66,837 0.85 - 0.924 10/30/2003 66,791 26,392 0.94 11/13/2003 26,364 69,094 0.93 - 0.94 11/20/2003 69,009 30,000 0.98 11/28/2003 29,959 39,929 0.948 - 0.955 12/04/2003 39,867 200,025 0.93 - 0.985 12/11/2003 199,677 50,024 0.837 - 0.92 12/26/2003 49,913 53,700 0.93 - 0.94 1/02/2004 53,569 19,000 1.015 1/22/2004 18,943 47,000 0.975 - 0.985 1/29/2004 46,850 8,963 1.0 - 1.015 2/05/2004 8,933 25,000 1.025 2/12/2004 24,910 25,000 1.03 2/26/2004 24,899 U.S. Treasury Notes 15,000 3.25 12/31/2003 15,084 6,000 3.625 3/31/2004 6,078 19,750 3.375 4/30/2004 20,019 7,000 2.875 6/30/2004 7,096 5,000 2.25 7/31/2004 5,049 11,000 2.125 8/31/2004 11,107 5,500 2.125 10/31/2004 5,561 5,000 1.625 3/31/2005 5,031 Total U.S. Government Obligations (Cost--$1,209,275) 1,209,717 Total Investments (Cost--$1,209,275)--103.4% 1,209,717 Liabilities in Excess of Other Assets--(3.4%) (39,301) ----------- Net Assets--100.0% $ 1,170,416 =========== *U.S. Treasury Bills are traded on a discount basis; the interest rates shown are the range of the discount rates paid at the time of purchase by the Trust. U.S. Treasury Notes bear interest at the rates shown, payable at fixed dates until maturity. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Statement of Assets and Liabilities Master Treasury Trust As of September 30, 2003 Assets Investments, at value (identified cost--$1,209,274,755++) $ 1,209,717,132 Cash 5,293 Receivables: Contributions $ 8,143,234 Interest 536,033 8,679,267 --------------- Prepaid expenses and other assets 24,146 --------------- Total assets 1,218,425,838 --------------- Liabilities Payables: Securities purchased 47,968,267 Investment advisor 25,857 Other affiliates 15,708 48,009,832 --------------- --------------- Total liabilities 48,009,832 --------------- Net Assets Net assets $ 1,170,416,006 =============== Net Assets Consist of Investors' capital $ 1,169,973,629 Unrealized appreciation on investments--net 442,377 --------------- Net Assets $ 1,170,416,006 =============== ++Cost for Federal income tax purposes. As of September 30, 2003, net unrealized appreciation for Federal income tax purposes amounted to $442,377, of which $443,918 related to appreciated securities and $1,541 related to depreciated securities. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Statement of Operations Master Treasury Trust For the Six Months Ended September 30, 2003 Investment Income Interest and amortization of premium and discount earned $ 6,820,999 Expenses Investment advisory fees $ 1,215,013 Accounting services 114,972 Custodian fees 23,537 Professional fees 22,364 Trustees' fees and expenses 22,068 Pricing fees 2,381 Other 13,767 --------------- Total expenses 1,414,102 --------------- Investment income--net 5,406,897 --------------- Realized & Unrealized Gain (Loss) on Investments--Net Realized gain on investments--net 48,275 Change in unrealized appreciation on investments--net (89,813) --------------- Total realized and unrealized loss on investments--net (41,538) --------------- Net Increase in Net Assets Resulting from Operations $ 5,365,359 =============== See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Statements of Changes in Net Assets Master Treasury Trust For the Six For the Period Months Ended February 13, 2003++ September 30, to March 31, Increase (Decrease) in Net Asset Value: 2003 2003 Operations Investment income--net $ 5,406,897 $ 1,744,050 Realized gain on investments--net 48,275 8,642 Change in unrealized appreciation on investments--net (89,813) 13,495 --------------- --------------- Net increase in net assets resulting from operations 5,365,359 1,766,187 --------------- --------------- Capital Transactions Proceeds from contributions 2,618,893,348 631,848,007 Fair value of net assets contributions -- 1,408,085,004 Fair value of withdrawals (2,751,958,420) (743,683,479) --------------- --------------- Net increase (decrease) in net assets derived from capital transactions (133,065,072) 1,296,249,532 --------------- --------------- Net Assets Total increase(decrease) in net assets (127,699,713) 1,298,015,719 Beginning of period 1,298,115,719 100,000 --------------- --------------- End of period $ 1,170,416,006 $ 1,298,115,719 =============== =============== ++Commencement of operations. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Financial Highlights Master Treasury Trust For the Six For the Period Months Ended February 13, 2003++ The following ratios have been derived from September 30, to March 31, information provided in the financial statements. 2003 2003 Total Investment Return Total investment return .88%* .60%* =============== =============== Ratios to Average Net Assets Expenses .23%* .25%* =============== =============== Investment income and realized gain on investments--net .88%* .98%* =============== =============== Supplemental Data Net assets, end of period (in thousands) $ 1,170,416 $ 1,298,116 =============== =============== *Annualized. ++Commencement of operations. See Notes to Financial Statements. CMA TREASURY FUND, SEPTEMBER 30, 2003 Notes to Financial Statements Master Treasury Trust 1. Significant Accounting Policies: Master Treasury Trust (the "Trust") is registered under the Investment Company Act of 1940, as amended, and is organized as a Delaware statutory trust. The Declaration of Trust permits the Trustees to issue nontransferable interest in the Trust, subject to certain limitations. The Trust's financial statements are prepared in conformity with accounting principles generally accepted in the United States of America, which may require the use of management accruals and estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to a fair statement of the results for the interim period presented. All such adjustments are of a normal, recurring nature. The following is a summary of significant accounting policies followed by the Trust. (a) Valuation of investments--Portfolio securities with remaining maturities of greater than sixty days, for which market quotations are readily available, are valued at market value. As securities transition from sixty-one to sixty days to maturity, the difference between the valuation existing on the sixty-first day before maturity and maturity value is amortized on a straight-line basis to maturity. Securities maturing sixty days or less from their date of acquisition are valued at amortized cost, which approximates market value. For the purpose of valuation, the maturity of a variable rate security is deemed to be the next coupon date on which the interest rate is to be adjusted. Other investments for which market value quotations are not available are valued at their fair value as determined in good faith by or under the direction of the Trust's Board of Trustees. (b) Income taxes--The Trust is classified as a partnership for Federal income tax purposes. As such, each investor in the Trust is treated as owner of its proportionate share of the net assets, income, expenses and realized and unrealized gains and losses of the Trust. Therefore, no Federal income tax provision is required. It is intended that the Trust's assets will be managed so an investor in the Trust can satisfy the requirements of Subchapter M of the Internal Revenue Code. (c) Security transactions and investment income--Security transactions are recorded on the dates the transactions are entered into (the trade dates). Realized gains and losses on security transactions are determined on the identified cost basis. Interest income (including amortization of premium and discount) is recognized on the accrual basis. 2. Investment Advisory Agreement and Transactions with Affiliates: The Trust has entered into an Investment Advisory Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. FAM is responsible for the management of the Trust's portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Trust. For such services, the Trust pays a monthly fee based upon the average daily value of the Trust's net assets at the following annual rates: .25% of the Trust's average daily net assets not exceeding $500 million; ..175% of the average daily net assets in excess of $500 million, but not exceeding $1 billion; and .125% of the average daily net assets in excess of $1 billion. For the six months ended September 30, 2003, the Trust reimbursed FAM $13,884 for certain accounting services. Certain officers and/or trustees of the Trust are officers and/or directors of FAM, PSI, and/or ML & Co. CMA TREASURY FUND, SEPTEMBER 30, 2003 Item 2 - Did registrant adopt a code of ethics, as of the end of the period covered by this report, that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party? If not, why not? Briefly describe any amendments or waivers that occurred during the period. State here if code of ethics/amendments/waivers are on website and give website address-. State here if fund will send code of ethics to shareholders without charge upon request--N/A (annual requirement only) Item 3 - Did the registrant's board of directors determine that the registrant either: (i) has at least one audit committee financial expert serving on its audit committee; or (ii) does not have an audit committee financial expert serving on its audit committee? If yes, disclose name of financial expert and whether he/she is "independent," (fund may, but is not required, to disclose name/ independence of more than one financial expert) If no, explain why not. - N/A (annual requirement only) Item 4 - Disclose annually only (not answered until December 15, 2003) (a) Audit Fees - Disclose aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. N/A. (b) Audit-Related Fees - Disclose aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant's financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (c) Tax Fees - Disclose aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (d) All Other Fees - Disclose aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (e)(1) Disclose the audit committee's pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X. N/A. (e)(2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. N/A. (f) If greater than 50%, disclose the percentage of hours expended on the principal accountant's engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A. (g) Disclose the aggregate non-audit fees billed by the registrant's accountant for services rendered to the registrant, and rendered to the registrant's investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. N/A. (h) Disclose whether the registrant's audit committee has considered whether the provision of non-audit services that were rendered to the registrant's investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. N/A. Item 5 - If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act, state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act. If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant's audit committee in Section 3(a)(58)(B) of the Exchange Act, so state. If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act regarding an exemption from the listing standards for audit committees. N/A (Listed issuers must be in compliance with the new listing rules by the earlier of their first annual shareholders meeting after January 2004, or October 31, 2004 (annual requirement)) Item 6 - Reserved Item 7 - For closed-end funds that contain voting securities in their portfolio, describe the policies and procedures that it uses to determine how to vote proxies relating to those portfolio securities. N/A Item 8--Reserved Item 9(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. Item 9(b)--There were no significant changes in the registrant's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Item 10 - Exhibits 10(a) - Attach code of ethics or amendments/waivers, unless code of ethics or amendments/waivers is on website or offered to shareholders upon request without charge. N/A. 10(b) - Attach certifications pursuant to Section 302 of the Sarbanes-Oxley Act. Attached hereto. Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. CMA Treasury Fund and Master Treasury Trust By: _/s/ Terry K. Glenn_______ Terry K. Glenn, President of CMA Treasury Fund and Master Treasury Trust Date: November 21, 2003 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: _/s/ Terry K. Glenn________ Terry K. Glenn, President of CMA Treasury Fund and Master Treasury Trust Date: November 21, 2003 By: _/s/ Donald C. Burke________ Donald C. Burke, Chief Financial Officer of CMA Treasury Fund and Master Treasury Trust Date: November 21, 2003 Attached hereto as a furnished exhibit are the certifications pursuant to Section 906 of the Sarbanes-Oxley Act.