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 811-03779 Name of Fund: BBH TRUST 		BBH Money Market Fund 		BBH U.S. Treasury Money Fund 		BBH Tax Free Short/Intermediate Fixed Income Fund 		BBH Tax Exempt Money Fund Fund Address: 40 Water Street 	Boston, MA 02109-3661 Name and address of agent for service: 	Mark Nixon 	BBH Trust, 40 Water Street, Boston, MA, 02109 	Mailing address: 140 Broadway, New York, NY, 10005 Registrant's telephone number, including area code: (800) 625-5759 Date of fiscal year end: 06/30/07 Date of reporting period: 07/01/06-12/31/06 ITEM 1 - Attach shareholder report BROWN [LOGO] BROTHERS HARRIMAN Semi-Annual Report DECEMBER 31, 2006 BBH MONEY MARKET FUND BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES December 31, 2006 (unaudited) ASSETS: Investment in BBH U.S. Money Market Portfolio (the "Portfolio"), at value ................................ $1,537,848,435 Other assets ............................................. 3,524 -------------- Total Assets ....................................... 1,537,851,959 -------------- LIABILITIES: Payables for: Shareholder servicing fees ............................ 924,339 Dividends declared .................................... 848,951 Administrative fees ................................... 351,249 Professional fees ..................................... 27,722 Board of Trustees' fees ............................... 12,558 Accounting fees ....................................... 8,000 -------------- Total Liabilities .................................. 2,172,819 -------------- NET ASSETS, for 1,535,679,140 fund shares outstanding ....... $1,535,679,140 ============== Net Assets Consist of: Par value ................................................ $ 15,356,791 Paid-in capital in excess of par ......................... 1,520,322,349 -------------- Net Assets .................................................. $1,535,679,140 ============== NET ASSET VALUE AND OFFERING PRICE PER SHARE ................ $1.00 ===== The accompanying notes are an integral part of these financial statements. 2 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- STATEMENT OF OPERATIONS For the six months ended December 31, 2006 (unaudited) INVESTMENT INCOME: Interest income allocated from Portfolio ..................... $39,704,861 Expenses allocated from Portfolio ............................ (1,193,082) ----------- Net Investment Income allocated from Portfolio ............ 38,511,779 ----------- Expenses: Shareholder servicing fees ................................... 1,867,766 Administrative fees .......................................... 709,751 Board of Trustees' fees ...................................... 63,524 Professional fees ............................................ 45,982 Accounting fees .............................................. 8,000 Miscellaneous expenses ....................................... 18,509 ----------- Total Expenses ............................................ 2,713,532 ----------- Net Investment Income ........................................... $35,798,247 =========== The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 3 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 ----------------- ------------- INCREASE (DECREASE) IN NET ASSETS: From Operations: Net investment income ................................................. $ 35,798,247 $ 50,921,761 Dividends declared from net investment income ......................... (35,805,959) (50,921,761) -------------- --------------- Net increase (decrease) in net assets resulting from operations ....................................................... (7,712) -- -------------- --------------- From Fund Share (Principal) Transactions at Net Asset Value of $1.00 per share: Fund shares sold ................................................... 937,568,777 1,839,355,983 Fund shares issued in reinvestment of dividends .................... 16,833,569 26,060,096 Fund shares repurchased ............................................ (924,277,085) (1,617,946,361) -------------- --------------- Net increase in net assets resulting from fund share transactions .................................................... 30,125,261 247,469,718 -------------- --------------- Total increase in net assets .......................................... 30,117,549 247,469,718 NET ASSETS: Beginning of year ........................................................ 1,505,561,591 1,258,091,873 -------------- --------------- End of period ............................................................ $1,535,679,140 $ 1,505,561,591 ============== =============== The accompanying notes are an integral part of these financial statements. 4 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS Selected per share data and ratios for a share outstanding throughout each period For the six months ended December 31, For the years ended June 30, 2006 -------------------------------------------------------------- (unaudited) 2006 2005 2004 2003 2002 ----------- ---- ---- ---- ---- ---- Net asset value, beginning of year .......................... $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 Income from investment operations: Net investment income ...................... 0.02 0.04 0.01 0.01 0.01 0.02 Dividends to shareholders from net investment income ................. (0.02) (0.04) (0.01) (0.01) (0.01) (0.02) ------ ------ ------ ------ ------ ------ Net asset value, end of period ................ $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 ====== ====== ====== ====== ====== ====== Total return .................................. 2.46% 3.76% 1.72% 0.59% 1.06% 2.10% Ratios/Supplemental data(1): Net assets, end of period (in millions) .... $1,536 $1,506 $1,258 $1,375 $1,459 $1,382 Ratio of expenses to average net assets .... 0.52%(2) 0.53% 0.52% 0.52% 0.52% 0.51% Ratio of net investment income to average net assets ...................... 4.79%(2) 3.75% 1.70% 0.59% 1.05% 2.08% - ---------- (1) Ratios include the Fund's share of Portfolio income, expenses paid by the Portfolio and the Portfolio's expense offset arrangement, as appropriate. (2) Annualized. The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 5 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS December 31, 2006 (unaudited) 1. Organization and Significant Accounting Policies. BBH Money Market Fund (the "Fund") is a separate, diversified series of BBH Trust (the "Trust"), which is registered under the Investment Company Act of 1940, as amended. The Trust is an open-end management investment company organized as a Massachusetts business trust on June 7, 1983. The Fund commenced operations on December 12, 1983. The Declaration of Trust permits the Trustees to create an unlimited number of series, each of which may issue a separate class of shares. The Fund established a new class of shares designated as "Institutional Shares". Institutional Shares commenced on December 19, 2006. Regular Shares and Institutional Shares have different operating expenses. The Trustees have authorized the issuance of an unlimited number of shares of the Fund with a par value of $0.01 per share. At December 31, 2006, there were four series of the Trust. The Fund invests all of its investable assets in the BBH U.S. Money Market Portfolio (the "Portfolio"), a diversified, open-end management investment company having the same investment objectives as the Fund. The value of such investment reflects the Fund's proportionate interest in the net assets of the Portfolio (approximately 61% at December 31, 2006). The performance of the Fund is directly affected by the performance of the Portfolio. The financial statements of the Portfolio, including the portfolio of investments, are included elsewhere in this report and should be read in connection with the Fund's financial statements. The Fund's financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make certain estimates and assumptions at the date of the financial statements and are based, in part, on the following accounting policies. Actual results could differ from those estimates. A. Valuation of Investments. The Fund records its investments in the Portfolio at fair value. Valuation of investments in the Portfolio is discussed in Note 1 of the Portfolio's Notes to Financial Statements which are included elsewhere in this report. B. Interest Income and Expenses. The Fund records its share of the Portfolio's income and expenses each day. In addition, the Fund accrues its own expenses. C. Federal Income Taxes. Each series of the Trust is treated as a separate entity for federal income tax purposes. It is the Fund's policy to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Accordingly, no federal income tax provision is required. D. Dividends and Distributions to Shareholders. Dividends from net investment income are declared daily and paid monthly to shareholders. 6 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) E Accounting Developments. In June 2006, Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement 109 (FIN 48) was issued and is effective for fiscal years beginning after December 15, 2006. FIN 48 sets forth a threshold for financial statement recognition, measurement and disclosure of a tax position taken or expected to be taken on a tax return. While not expected to have a material impact on the Fund's financial statements, management will be evaluating the impact, if any, the adoption of FIN 48 will have on the Funds' net assets and results of operations. In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the implication of SFAS 157. At this time its impact on the Fund's financial statements has not yet been determined. 2. Transactions with Affiliates. Administrative Fees. The Trust has an administration agreement with Brown Brothers Harriman Trust Company, LLC ("BBHTC") for which BBHTC receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.095% of the Fund's average daily net assets. BBHTC has a sub-administration services agreement with Federated Services Company ("FSC") for which FSC receives compensation paid by BBHTC. For the six months ended December 31, 2006, the Fund incurred $709,751 for administrative services. Shareholder Servicing Fees. The Trust has a shareholder servicing agreement with Brown Brothers Harriman ("BBH") for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.25% of the Fund's average daily net assets. For the six months ended December 31, 2006, the Fund incurred $1,867,766 for shareholder servicing services. Accounting Fees. The Fund has an accounting agreement with BBH for which BBH receives a fee from the Fund calculated daily and paid monthly. For the six months ended December 31, 2006, the Fund incurred $8,000 for accounting services. Board of Trustees' Fees. Each Trustee receives an annual fee as well as reimbursement for reasonable out-of-pocket expenses from the Fund. For the six months ended December 31, 2006, the Fund incurred $63,524 for Trustees' fees. FINANCIAL STATEMENT DECEMBER 31, 2006 7 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- DISCLOSURE OF FUND EXPENSES December 31, 2006 (unaudited) EXAMPLE As a shareholder of BBH Money Market Fund (the "Fund"), you may incur two types of costs: (1) transaction costs on purchase payments, reinvested dividends, or other distributions; and exchange fees; and (2) ongoing costs, including management fees; and other Fund expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2006 to December 31, 2006). ACTUAL EXPENSES The first line of the table below provides information about actual account values and actual expenses. You may use information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period" to estimate the expenses you paid on your account during the period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid during the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. Expenses Paid Beginning Ending During Period Account Value Account Value July 1, 2006 July 1, 2006 December 31, 2006 to December 31, 2006(1) ------------ ----------------- ----------------------- Actual ................................. $1,000 $1,024.60 $2.65 Hypothetical(2) ........................ $1,000 $1,022.58 $2.65 - ---------- (1) Expenses are equal to the Fund's annualized expense ratio of 0.52%, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (2) Assumes a return of 5% before expenses. For the purpose of the calculation, the applicable annualized expense ratio is subtracted from the assumed return before expenses. 8 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION December 31, 2006 (unaudited) Approval of Continuation of Investment Advisory Agreement At a meeting held on December 11, 2006, the Board of Trustees (the "Board") of BBH Trust (the "Trust") unanimously approved the renewal of the Investment Advisory Agreement (the "IA Agreement") between the Trust and Brown Brothers Harriman ("BBH") for an additional one-year term. The following is a summary of the factors the Board took into consideration in making its determination to approve the renewal of the IA Agreement. Nature, Extent and Quality of Services Provided by BBH The Board noted that, under the IA Agreement in respect of each Fund, BBH, subject to the supervision of the Board, is responsible for providing a continuous investment program and, for each Fund other than the International Fund, makes purchases and sales of portfolio securities consistent with the Fund's investment objective and policies The Board considered the scope and quality of services provided by BBH under the IA Agreement and noted that the scope of services provided had expanded over time, primarily, as a result of regulatory developments. The Board noted that, for example, BBH is responsible for maintaining and monitoring its own and, to varying degrees, the Funds' compliance program, and these compliance programs have recently been refined and enhanced in light of new regulatory requirements. The Board considered the quality of the investment research capabilities of BBH and the other resources it has dedicated to performing services for the Funds. The Board concluded that, overall, they were satisfied with the nature, extent and quality of services provided (and expected to be provided) to each of the Funds under the IA Agreement. Costs of Services Provided and Profitability to BBH At the request of the Board, BBH provided information concerning the profitability of BBH's investment company, advisory fees and other fees and its statement of condition for the recent period and as of December 31, 2005, respectively. The Board also reviewed BBH's profitability data for each Fund, which also included the effect of revenue generated by the shareholder servicing, administration, custody and other fees paid by a Fund. The Board noted that most beneficial owners of the Funds' shares are holding these shares in the context of an overall investment management program for which BBH is the adviser and for which BBH charges an investment management fee. Since BBH excludes the assets in the Funds when calculating its advisory fees for its clients, the Board agreed that it is appropriate in an analysis of Fund profitability to reduce the advisory fees for the Funds by the advisory fees that otherwise would have been earned by BBH on the assets involved. The Board discussed the difficulty of making comparisons of profitability from fund advisory contracts because comparative information is not generally publicly available and is affected by numerous factors, including the structure of the particular adviser, the types of funds it manages, its business mix, numerous assumptions regarding allocations and the adviser's capital structure and cost of capital. In considering profitability information, the Board considered the effect of fall-out benefits on BBH's expenses, as well as the "revenue sharing" arrangements BBH has entered into with certain entities that distribute shares of the Funds. The Board focused on profitability of BBH's relationships with the Funds before taxes and distribution expenses. The Board concluded that it was satisfied that BBH's level of profitability from its relationship with each Fund was not excessive. FINANCIAL STATEMENT DECEMBER 31, 2006 9 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) The Board also considered the advisory fees of each Fund in comparison to the fees of comparable funds. The Board recognized that the expense ratios for the Funds potentially reflected on BBH's provision of services, as BBH is directly the provider of substantial services and coordinates services provided to the Fund by others. The Board took note of situations in which BBH waived its management fee or reimbursed a Fund's expenses. Fall-Out Benefits The Board considered that BBH did not allocate the Funds' portfolio transactions for third party research, although it did benefit from proprietary research received from brokers that execute the Funds' purchases and sales of securities. The Board recognized that the aggregate amount of commissions generated by Fund transactions was unlikely to result in the Funds receiving from full service broker dealers substantial discounts on commission rates. The Board received and reviewed information concerning BBH's policies with respect to allocating portfolio brokerage. The Board also considered that BBH receives shareholder servicing fees from certain funds, and is the Funds' administrator, custodian and securities lending agent. The Board noted that BBH retained no portion of the 12b-1 fees paid by the Fund that operated with a plan. The Board recognized that BBH's profitability would be somewhat lower if it did not receive proprietary research for commissions or, if it did not receive the other benefits described above. The Board recognized that most Fund shareholders were also BBH clients, and that substantial assets are invested in the Funds as a result of an overall investment management program for the shareholder. The Board noted that the Funds also derive reputational and other benefits from their association with BBH and their use of the BBH name, which is licensed to the Funds by BBH. Thus, the Board did not believe that BBH revenues associated with its clients should be fairly regarded as "fallout" benefit from the Funds. Economies of Scale The Board noted that the Funds' advisory fee schedules do not contain breakpoints. As a result, if assets increase, the fee rates would not be reduced on the incremental assets. There may be other economies of scale because many expenses did not rise (and fall) proportionally to increases (and decreases) in total net assets. The Board noted that BBH had priced the advisory services in recognition of the fact that it was largely its own clients who were shareholders and, accordingly, sought to assure that the cost of advisory service and total expenses for each Fund were fair and reasonable. Consequently, the advisory fees are in the range of institutional separate account fees, which is to say substantially below, even taking into account the BBH administration fees, typical mutual fund fees. In addition, the Board noted that BBH had supported and continued to support certain Funds through fee waivers and expense reimbursements. Based on information they had been provided over many years, the Board observed that in the mutual fund industry as a whole, as well as among funds similar to the Funds, there appeared to be no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. In light of the Fund's current size and expense structure, the Board concluded that it was unnecessary at this time to consider breakpoints. 10 BBH MONEY MARKET FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) Investment Results The Board considered the investment results of each of the Funds as compared to investment companies with its peers and with one or more selected securities indices. In addition to the information received by the Board for the meeting, the Board received detailed performance information for each Fund at each regular Board meeting during the year. At the meeting, the Board reviewed information showing performance of each Fund compared to the peers generally over the 1-, 3-, 5- and since inception periods ended October 31, 2005 and compared to one or more securities indices over comparable periods. Advisory Fee Rate The Board considered the advisory fee rate paid by each Fund to BBH. The Board recognized that it is difficult to make comparisons of these fees, and combined advisory and administration fees, because there are variations in the services that are included in the fees paid by other funds. BBH also manages accounts for institutional clients with investment objectives similar to those of certain Funds. The fee rates payable by the BBH's institutional clients are generally comparable although occasionally lower, than the rates paid by the Funds. BBH reviewed with the Board the significant differences in the scope of services that BBH provides to institutional clients and to the Funds through both the IA and Administration Agreements (the "Admin. Agreements"). For example, BBH provides, among other things, officers (including the Funds' Chief Compliance Officer and officers to provide required certifications) and administrative services, such as shareholder communications, and tax compliance, with the attendant costs and exposure to liability. BBH also coordinates the provision of services to the Funds by nonaffiliated service providers. These services normally are not provided to non investment company clients, and fees charged to the Funds reflect the costs and risks of the additional obligations. The Board also noted that since the Funds are constantly issuing and redeeming their shares, they are more difficult to manage than an institutional account, where the assets are relatively stable. Accordingly, the Board did not place significant weight on these fee comparisons. The following factors specific to BBH Money Market Fund also were noted and considered by the Board in deciding to approve the continuation of the IA Agreements: The Trustees reviewed information showing performance of the Fund compared to other funds in the iMoneyNet (1st Tier Retail). The comparative information showed that the Fund had superior performance compared to the averages in these categories over all relevant periods. The Board also viewed with favor that the total expense ratio was substantially lower than the averages in these categories. The Board also noted that the BBH Money Market Fund had maintained a stable net asset value of one dollar at all times. Taking into account these comparisons and the other factors considered, the Board concluded that the Fund's investment results over time and expense ratios had been satisfactory. FINANCIAL STATEMENT DECEMBER 31, 2006 11 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO ALLOCATION December 31, 2006 (unaudited) (expressed in U.S. dollars) BREAKDOWN BY SECURITY TYPE Percent of U.S. $ Value Net Assets ------------ ---------- Asset Backed Securities .......................... $ 36,711,347 1.5% Certificates of Deposit .......................... 244,548,726 9.8 Commercial Paper ................................. 1,216,115,923 48.6 Corporate Bonds .................................. 338,118,827 13.5 Municipal Bonds .................................. 360,235,000 14.4 U.S. Government Agency Obligation ................ 15,021,357 0.6 Time Deposits .................................... 236,500,000 9.4 Repurchase Agreement ............................. 50,000,000 2.0 Other Assets in Excess of Liabilities ............ 4,250,745 0.2 -------------- ----- Net Assets ....................................... $2,501,501,925 100.0% ============== ===== All data as of December 31, 2006. The Fund's breakdown by security type is expressed as a percentage of net assets and may vary over time. The accompanying notes are an integral part of these financial statements. 12 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS December 31, 2006 (unaudited) (expressed in U.S. dollars) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- -------------- ASSET BACKED SECURITIES (1.5%) $ 8,429,012 AmeriCredit Automobile Receivables Trust 2006-BG................................... 10/09/07 5.348% $ 8,429,011 9,524,049 Banc of America Securities Auto Trust 2006-G1................................... 11/19/07 5.349 9,524,767 8,000,000 Capital Auto Receivable Asset Trust 2006-2.................................... 12/15/07 5.340 8,000,000 7,282,271 Capital Auto Receivable Asset Trust 2006-SN1A(1).............................. 09/20/07 5.320 7,282,271 3,476,903 CIT Equipment Collateral Series 2006-VT(1)........ 03/20/07 4.990 3,475,298 -------------- Total Asset Backed Securities..................... 36,711,347 -------------- CERTIFICATES OF DEPOSIT (9.8%) 25,000,000 Canadian Imperial Bank Commerce(1)................ 04/27/07 5.440 25,006,992 15,000,000 Canadian Imperial Bank Commerce................... 10/26/07 5.375 15,025,351 25,000,000 Charter One Bank.................................. 03/19/07 5.330 25,000,000 11,500,000 Citibank NA....................................... 02/02/07 5.315 11,499,898 10,000,000 HBOS Treasury..................................... 06/04/07 5.380 9,986,187 25,000,000 Lloyds Bank, Plc.................................. 01/26/07 5.310 25,000,118 8,000,000 M&I Marshall & Ilsley Bank(1)..................... 03/30/07 5.364 8,000,098 25,000,000 Royal Bank of Canada.............................. 10/29/07 5.368 25,024,475 25,000,000 Toronto Dominion.................................. 04/13/07 5.300 24,972,121 25,000,000 Washington Mutual Bank............................ 02/16/07 5.320 25,000,000 25,000,000 Westpac Banking Corp.............................. 10/29/07 5.350 25,033,676 25,000,000 Wilmington Trust Co............................... 02/20/07 5.350 24,999,810 -------------- Total Certificates of Deposit..................... 244,548,726 -------------- COMMERCIAL PAPER (48.6%) 15,000,000 Abbey National North America LLC.................. 01/02/07 5.315 14,997,788 20,000,000 Abbey National North America LLC.................. 01/03/07 5.326 19,994,089 10,000,000 ANZ National (Int'l) Ltd.......................... 04/04/07 5.331 9,864,375 10,000,000 ANZ National (Int'l) Ltd.......................... 06/22/07 5.309 9,752,989 25,000,000 Bank of America NA................................ 03/30/07 5.300 25,000,000 7,000,000 Bank of Ireland................................... 02/08/07 5.317 6,961,208 18,000,000 Bank of Ireland................................... 02/09/07 5.317 17,897,625 49,500,000 Barclays US Funding LLC........................... 01/16/07 5.440 49,391,719 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 13 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) (expressed in U.S. dollars) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- -------------- COMMERCIAL PAPER (continued) $ 50,000,000 Bear Stearns & Co., Inc........................... 01/02/07 5.333% $ 49,992,597 50,000,000 Bear Stearns & Co., Inc........................... 01/08/07 5.309 49,948,958 8,150,000 Beta Financial Group, Inc......................... 01/12/07 5.439 8,136,926 25,000,000 Beta Financial Group, Inc......................... 01/16/07 5.344 24,945,313 25,000,000 Blue Spice LLC.................................... 01/02/07 5.301 24,996,333 20,000,000 Blue Spice LLC.................................... 01/04/07 5.320 19,991,225 25,000,000 BNP Paribas Finance, Inc.......................... 06/13/07 5.293 24,416,483 25,900,000 Brown-Forman Beverages, Europe, Ltd............... 03/23/07 5.344 25,592,891 25,000,000 Buckingham CDO II LLC............................. 01/19/07 5.327 24,934,000 11,000,000 Catholic Health Initiative........................ 03/14/07 5.360 11,000,000 25,000,000 CBA (Delaware) Finance............................ 03/15/07 5.310 24,734,361 26,000,000 CC USA, Inc....................................... 01/23/07 5.303 25,916,822 9,940,000 CC USA, Inc....................................... 01/26/07 5.313 9,903,829 15,000,000 CIT Group, Inc.................................... 05/16/07 5.309 14,708,625 14,565,000 City of Chicago, Illinois......................... 06/06/07 5.463 14,233,646 43,550,000 Columbia University............................... 01/05/07 5.396 43,524,257 12,900,000 Cornell University................................ 01/11/07 5.318 12,881,008 25,000,000 Credit Suisse FB USA, Inc......................... 02/21/07 5.311 24,814,417 11,100,000 Danske Corp....................................... 03/12/07 5.307 10,986,903 5,000,000 Dresdner US Finance, Inc.......................... 04/27/07 5.290 4,916,544 25,000,000 First Tennessee Bank.............................. 03/19/07 5.310 25,000,000 16,000,000 FPL Group Capital................................. 01/04/07 5.283 15,992,987 5,600,000 FPL Group Capital................................. 01/18/07 5.329 5,585,984 15,000,000 HBOS Treasury..................................... 03/01/07 5.305 14,871,306 15,000,000 HBOS Treasury..................................... 03/19/07 5.321 14,831,563 25,000,000 Hewlett Packard Co................................ 01/29/07 5.325 24,897,139 8,500,000 HSBC Americas, Inc................................ 01/12/07 5.304 8,486,287 25,000,000 ING US Funding LLC................................ 02/01/07 5.289 24,887,194 23,100,000 Johns Hopkins University.......................... 02/07/07 5.300 23,100,000 25,000,000 Kittyhawk Funding Corp............................ 01/16/07 5.313 24,944,896 25,000,000 Koch Resources LLC................................ 01/08/07 5.282 24,974,479 21,500,000 Koch Resources LLC................................ 02/16/07 5.340 21,354,397 25,000,000 Korea Development Bank............................ 01/18/07 5.352 24,937,726 25,000,000 Morgan Stanley.................................... 06/04/07 5.306 24,446,563 The accompanying notes are an integral part of these financial statements. 14 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) (expressed in U.S. dollars) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- -------------- COMMERCIAL PAPER (continued) $ 25,000,000 National Rural Utilities Cooperative Finance Corp.................................... 01/10/07 5.283% $ 24,967,187 25,370,000 Nationwide Building............................... 01/08/07 5.345 25,344,052 10,000,000 Nationwide Building............................... 03/15/07 5.328 9,893,339 12,744,000 Power Authority of State of New York.............. 02/01/07 5.368 12,686,387 25,000,000 Rabobank Nederland NV............................. 11/21/07 5.235 25,000,093 25,000,000 Rabobank USA Financial............................ 01/02/07 5.233 24,996,368 10,000,000 Rights of University of California................ 01/16/07 5.283 9,978,167 50,000,000 San Paolo IMI US Financial Co..................... 01/05/07 5.408 49,971,000 17,087,000 Societe Generale.................................. 01/08/07 5.304 17,069,623 8,000,000 Societe Generale.................................. 06/08/07 5.282 7,819,353 30,700,000 Southern Company Funding.......................... 02/06/07 5.339 30,537,290 5,000,000 Tennessee State School Bond....................... 02/15/07 5.330 5,000,000 25,000,000 Three Rivers Funding Corp......................... 01/05/07 5.323 24,985,278 50,000,000 UBS Finance Delaware LLC.......................... 01/02/07 5.287 49,992,701 2,800,000 Variable Funding Capital Corp..................... 01/12/07 5.367 2,795,423 12,416,000 Walnut Energy Center Authority.................... 02/15/07 5.399 12,334,210 -------------- Total Commercial Paper............................ 1,216,115,923 -------------- CORPORATE BONDS (13.5%) 2,000,000 Alabama Power Co.(1).............................. 04/23/07 5.624 2,001,419 25,000,000 American Express Credit Corp.(1).................. 03/12/07 5.330 25,000,737 18,000,000 American Express Centurion Bank(1)................ 10/18/07 5.350 18,001,099 10,000,000 American General Finance Corp.(1)................. 06/27/07 5.426 10,004,594 10,780,000 CIT Group, Inc.(1)................................ 05/18/07 5.595 10,789,876 14,850,000 Citigroup Global Markets Holdings, Inc.(1)........ 03/16/07 5.431 14,852,765 25,000,000 Comerica Bank(1).................................. 07/20/07 5.349 24,996,700 23,000,000 Goldman Sachs Group, Inc.(1)...................... 03/30/07 5.464 23,018,908 25,000,000 International Business Machines, Corp.(1)......... 06/28/07 5.363 25,003,114 25,000,000 KeyBank NA(1)..................................... 08/08/07 5.395 25,010,404 15,000,000 Merrill Lynch & Co., Inc.(1)...................... 02/27/07 5.495 15,009,700 25,000,000 Merrill Lynch & Co., Inc.(1)...................... 05/14/07 5.315 25,000,000 17,500,000 Merrill Lynch & Co., Inc.......................... 11/15/07 4.000 17,333,592 25,000,000 Morgan Stanley(1)................................. 01/19/07 5.420 25,001,197 25,000,000 National City Bank of Kentucky(1)................. 02/08/07 5.365 25,000,659 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 15 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) (expressed in U.S. dollars) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- -------------- CORPORATE BONDS (continued) $ 20,000,000 NGSP, Inc.(1)..................................... 06/01/46 5.400% $ 20,000,000 5,000,000 PNC Bank NA(1).................................... 01/29/07 5.320 4,999,941 25,000,000 PNC Bank NA(1).................................... 01/02/08 5.295 24,993,739 2,100,000 SouthTrust Bank(1)................................ 03/19/07 5.425 2,100,383 -------------- Total Corporate Bonds............................. 338,118,827 -------------- MUNICIPAL BONDS (14.4%) 11,890,000 Baltimore, Maryland(1)............................ 01/04/07 5.350 11,890,000 49,365,000 Baltimore, Maryland(1)............................ 01/04/07 5.350 49,365,000 6,255,000 Baltimore, Maryland(1)............................ 01/04/07 5.350 6,255,000 11,000,000 Coastal Bend Health Facilities Development Corp.(1)............................ 01/03/07 5.360 11,000,000 10,000,000 Colorado Housing & Finance Authority(1)........... 01/03/07 5.380 10,000,000 4,000,000 Connecticut Housing Finance Authority(1).......... 01/04/07 5.350 4,000,000 8,340,000 De Kalb County, Georgia Development Authority Revenue(1)............................ 01/03/07 5.350 8,340,000 19,300,000 Florida Housing Finance Corp.(1).................. 01/04/07 5.350 19,300,000 24,600,000 Florida Housing Finance Corp.(1).................. 01/04/07 5.320 24,600,000 5,365,000 Greensboro, North Carolina(1)..................... 01/03/07 5.400 5,365,000 4,695,000 Hamilton County, Ohio Health Care Revenue(1)................................. 01/04/07 5.350 4,695,000 2,000,000 Jacksonville, Florida Economic Development Commission(1)....................... 01/04/07 5.400 2,000,000 3,245,000 Massachusetts State Health & Educational Facilities(1)....................... 01/03/07 5.400 3,245,000 23,915,000 Massachusetts State Health & Educational Facilities(1)....................... 01/04/07 5.370 23,915,000 3,800,000 Massachusetts Port Authority(1)................... 01/03/07 5.380 3,800,000 9,995,000 Massachusetts State Housing Finance Agency(1)....................................... 01/04/07 5.370 9,995,000 21,000,000 Mississippi Business Finance Corp.(1)............. 01/02/07 5.330 21,000,000 4,500,000 Missouri State Development Finance Board(1)........................................ 01/04/07 5.400 4,500,000 39,700,000 New York, New York(1)............................. 01/03/07 5.350 39,700,000 The accompanying notes are an integral part of these financial statements. 16 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) (expressed in U.S. dollars) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- -------------- MUNICIPAL BONDS (continued) $ 25,000,000 New York City Transitional Finance Authority(1).................................... 01/03/07 5.380% $ 25,000,000 25,000,000 North Texas Higher Education Authority(1)......... 01/03/07 5.350 25,000,000 17,350,000 Portland, Maine(1)................................ 01/03/07 5.350 17,350,000 8,220,000 Private Colleges & Universities Authority(1)...... 01/03/07 5.350 8,220,000 2,100,000 Texas State(1).................................... 01/03/07 5.370 2,100,000 19,600,000 Texas State(1).................................... 01/03/07 5.370 19,600,000 -------------- Total Municipal Bonds............................. 360,235,000 -------------- U.S. GOVERNMENT AGENCY OBLIGATION (0.6%) 15,000,000 SLM Corp.(1)...................................... 07/25/07 5.597 15,021,357 -------------- TIME DEPOSITS (9.4%) 100,000,000 Branch Bank & Trust............................... 01/02/07 4.948 100,000,000 100,000,000 Dresdner Bank..................................... 01/02/07 5.320 100,000,000 36,500,000 Royal Bank of Canada.............................. 01/02/07 5.130 36,500,000 -------------- Total Time Deposits............................... 236,500,000 -------------- REPURCHASE AGREEMENT (2.0%) 50,000,000.00 Deutche Bank (Agreement dated 12/29/06 collateralized by FMAC 4.000%-8.000%, due 11/01/16-12/01/36, value $27,729,233; FNMA 4.250%-7.220%, due 10/01/18-01/01/37; value $22,927,997 and GNMA 5.750%, due 11/20/34; value $342,770)................................... 01/02/07 5.300 50,000,000 -------------- TOTAL INVESTMENTS AT AMORTIZED COST............................... 99.8% $2,497,251,180 OTHER ASSETS IN EXCESS OF LIABILITIES............................. 0.2 4,250,745 ----- -------------- NET ASSETS .................................................... 100.0% $2,501,501,925 ===== ============== - ---------- (1) Variable rate instrument. Interest rates change on specific dates (such as a coupon or interest rate payment date). The yield shown represents the December 31, 2006 coupon rate. Abbreviations: FMAC - Financial Markets Association of Canada FNMA - Federal National Mortgage Association GNMA - Government National Mortgage Association The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 17 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES December 31, 2006 (unaudited) (expressed in U.S. dollars) ASSETS: Investments, at amortized cost.............................. $2,497,251,180 Interest receivable......................................... 8,871,785 -------------- Total Assets............................................. 2,506,122,965 -------------- LIABILITIES: Due to bank................................................. 3,383,968 Payables for: Investment advisory fees................................. 613,514 Custody and accounting fees.............................. 236,083 Administrative fees...................................... 214,730 Professional fees........................................ 44,696 Board of Trustees' fees.................................. 30,247 Accrued expenses and other liabilities...................... 97,802 -------------- Total Liabilities........................................ 4,621,040 -------------- NET ASSETS..................................................... $2,501,501,925 ============== The accompanying notes are an integral part of these financial statements. 18 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- STATEMENT OF OPERATIONS For the six months ended December 31, 2006 (unaudited) (expressed in U.S. dollars) NET INVESTMENT INCOME: Income: Interest................................................. $67,596,807 ----------- Expenses: Investment advisory fees................................. 1,267,544 Administrative fees...................................... 443,641 Custody and accounting fees.............................. 226,702 Board of Trustees' fees.................................. 42,552 Miscellaneous expenses................................... 122,019 ----------- Total Expenses........................................ 2,102,458 Expense offset arrangement............................ (68,075) ----------- Net Expenses.......................................... 2,034,383 ----------- Net Investment Income....................................... $65,562,424 =========== The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 19 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS (expressed in U.S. dollars) For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 -------------- -------------- INCREASE (DECREASE) IN NET ASSETS: From Operations: Net investment income.............................................. $ 65,562,424 $ 107,785,835 -------------- -------------- Capital Transactions: Proceeds from contributions........................................ 1,603,988,806 4,531,857,516 Value of withdrawals............................................... (1,739,249,575) (4,572,494,305) -------------- -------------- Net decrease in net assets resulting from capital transactions......................................... (135,260,769) (40,636,789) -------------- -------------- Total increase (decrease) in net assets......................... (69,698,345) 67,149,046 NET ASSETS: Beginning of year..................................................... 2,571,200,270 2,504,051,224 -------------- -------------- End of period......................................................... $2,501,501,925 $2,571,200,270 ============== ============== The accompanying notes are an integral part of these financial statements. 20 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS (expressed in U.S. dollars) For the six months ended December 31, For the years ended June 30, 2006 ---------------------------------------------------------------- (unaudited) 2006 2005 2004 2003 2002 ----------- ------- ------- ------- -------- -------- Total return................. 2.64% 4.13% 2.17% 0.99% 1.44% 2.47% Ratios/Supplemental data: Net assets, end of period (in millions)... $2,502 $2,571 $2,504 $2,871 $3,422 $2,874 Expenses as a percentage of average net assets: Net expenses paid by Portfolio........ 0.16%(1) 0.16% 0.16% 0.16% 0.15% 0.16% Expense offset arrangement......... 0.01%(1) 0.00%(2) 0.00%(2) 0.00%(2) 0.00%(2) 0.00%(2) ----- ----- ----- ----- ----- ----- Total expenses...... 0.17%(1) 0.16% 0.16% 0.16% 0.15% 0.16% ===== ===== ===== ===== ===== ===== Ratio of net investment income to average net assets............. 5.17%(1) 4.05% 2.05% 0.95% 1.40% 2.39% - ---------- (1) Annualized. (2) Amount is less than 0.01%. The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 21 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS December 31, 2006 (unaudited) (expressed in U.S. dollars) 1. Organization and Accounting Policies. BBH U.S. Money Market Portfolio (the "Portfolio") is registered under the Investment Company Act of 1940, as amended, as a no load, diversified, open-end management investment company, which was organized as a trust under the laws of the State of New York on June 15, 1993. The Portfolio commenced operations on October 31, 1994. The Declaration of Trust permits the Trustees to create interests in the Portfolio. The Portfolio's financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make certain estimates and assumptions at the date of the financial statements and are based, in part, on the following accounting policies. Actual results could differ from those estimates. A. Valuation of Investments. The Portfolio values its investments at amortized cost, which approximates market value. The amortized cost method values a security at its cost at the time of purchase and thereafter assumes a constant amortization to maturity of any discount or premium. The Portfolio's use of amortized cost is in compliance with Rule 2a-7 of the Investment Company Act of 1940. B. Investment Transactions and Income. Investment transactions are accounted for on the trade date. Realized gains and losses, if any, from investment transactions are determined on the basis of identified cost. Interest income consists of interest accrued and discount earned (including both original issue and market discount) and premium amortization on the investments of the Portfolio, accrued ratably to the date of maturity. C. Repurchase Agreements. The Portfolio may enter into repurchase agreements with primary dealers of U.S. Government Obligations as designated by the Federal Reserve Bank of New York. Repurchase agreements are transactions in which the Portfolio buys a security from a dealer or bank and agrees to sell the security back at a mutually agreed upon time and price. The repurchase price exceeds the sale price, reflecting the Portfolio's return on the transaction or effectively the interest rate paid by the dealer to the Portfolio. This return is unrelated to the interest rate on the underlying security. The Portfolio will enter into repurchase agreements only with banks and other recognized financial institutions, such as securities dealers, deemed creditworthy by the Investment Adviser. The Portfolio's custodian or sub-custodian will take possession of the securities subject to repurchase agreements. The Investment Adviser or sub-custodian will monitor the value of the underlying security each day to ensure that the value of the security always equals or exceeds the repurchase price. Repurchase agreements are subject to credit risks. Information regarding repurchase agreements is included in the Portfolio of Investments. D. Federal Income Taxes. The Portfolio is treated as a partnership for federal income tax purposes and its operations are conducted in such a way that is it not to be considered engaged in a U.S. trade or business for U.S. tax purposes. Accordingly, no provision for federal income taxes is necessary. It is intended that the Portfolio's assets will be managed in such way that an investor in the Portfolio will be able to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies. At December 31, 2006, the cost of investments for federal income tax purposes was equal to the amortized cost of the investments for financial statement purposes. 22 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) (expressed in U.S. dollars) E. Accounting Developments. In June 2006, Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement 109 (FIN 48) was issued and is effective for fiscal years beginning after December 15, 2006. FIN 48 sets forth a threshold for financial statement recognition, measurement and disclosure of a tax position taken or expected to be taken on a tax return. While not expected to have a material impact on the Portfolio's financial statements, management will be evaluating the impact, if any, the adoption of FIN 48 will have on the Portfolio's net assets and results of operations. In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the implication of SFAS 157. At this time its impact on the Fund's financial statements has not yet been determined. 2. Transactions with Affiliates. Investment Advisory Fees. The Portfolio has an investment advisory agreement with Brown Brothers Harriman ("BBH") for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.10% of the Portfolio's average daily net assets. BBH has established a separately identifiable department ("SID") to provide investment advice to mutual funds. The SID is registered with the Securities and Exchange Commission under the Investment Advisors Act of 1940. For the six months ended December 31, 2006, the Portfolio incurred $1,267,544 for advisory services. Administrative Fees. The Portfolio has an administration agreement with Brown Brothers Harriman Trust Company, LLC ("BBHTC") for which it pays BBHTC a fee from the Fund calculated daily and paid monthly at an annual rate of 0.035% of the Portfolio's average daily net assets. BBHTC has a sub-administration services agreement with Federated Services Company ("FSC") for which FSC receives compensation paid by BBHTC. For the six months ended December 31, 2006, the Portfolio incurred $443,641 for administrative services. Custody and Accounting Fees. BBH acts as a custodian and receives a custody and accounting fee from the Fund calculated daily and paid monthly. The custody fee is a transaction based fee with an annual minimum of $20,000, and the accounting fee is calculated at 0.01% per annum on the first $1 billion of net assets and 0.005% per annum on all net assets over $1 billion. For the six months ended December 31, 2006, the Portfolio incurred $226,702 for custody and accounting services. These fees were reduced by $68,075 as a result of an expense offset arrangement with the Portfolio's custodian. In the event that the Portfolio is overdrawn, under the custody agreement with BBH, BBH will make overnight loans to the Portfolio to cover overdrafts. Pursuant to their agreement the Portfolio will be charged interest based on LIBOR on the day of the overdraft plus one percent. The total interest paid by the Portfolio for the six months ended December 31, 2006 was $13,159. Board of Trustees' Fees. Each Trustee receives an annual fee as well as reimbursement for reasonable out-of-pocket expenses from the Portfolio. For the six months ended December 31, 2006, the Portfolio incurred $42,552 for the Trustees' fees. FINANCIAL STATEMENT DECEMBER 31, 2006 23 BBH U.S. MONEY MARKET PORTFOLIO - -------------------------------------------------------------------------------- DISCLOSURE OF FUND EXPENSES December 31, 2006 (unaudited) (expressed in U.S. dollars) EXAMPLE As a shareholder of BBH Money Market Portfolio (the "Portfolio"), you may incur two types of costs: (1) transaction costs on purchase payments, reinvested dividends, or other distributions; and exchange fees; and (2) ongoing costs, including management fees; and other Portfolio expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in the Portfolio and to compare these costs with the ongoing costs of investing in other mutual funds. The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2006 to December 31, 2006). ACTUAL EXPENSES The first line of the table below provides information about actual account values and actual expenses. You may use information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period" to estimate the expenses you paid on your account during the period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Portfolio's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid during the period. You may use this information to compare the ongoing costs of investing in the Portfolio and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. Expenses Paid Beginning Ending During Period Account Value Account Value July 1, 2006 July 1, 2006 December 31, 2006 to December 31, 2006(1) ------------ ----------------- ----------------------- Actual................................. $1,000 $1,026.40 $0.82 Hypothetical(2)........................ $1,000 $1,024.40 $0.82 - ---------- (1) Expenses are equal to the Portfolio's annualized expense ratio of 0.16%, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (2) Assumes a return of 5% before expenses. For the purpose of the calculation, the applicable annualized expense ratio is subtracted from the assumed return before expenses. 24 BBH U.S. MONEY MARKET PORTFOLIO DISCLOSURE OF ADVISOR SELECTION December 31, 2006 (unaudited) Approval of Continuation of Investment Advisory Agreement At a meeting held on December 11, 2006, the Board of Trustees (the "Board") of BBH Portfolio (the "Portfolio") unanimously approved the renewal of the Investment Advisory Agreement (the "IA Agreement") between the Portfolio and Brown Brothers Harriman & Co. ("BBH") for an additional one-year term. The following is a summary of the factors the Board took into consideration in making its determination to approve the renewal of the IA Agreement. Nature, Extent and Quality of Services Provided by BBH The Board noted that, under the IA Agreement in respect of each Fund, BBH, subject to the supervision of the Board, is responsible for providing a continuous investment program and, for each Fund other than the International Fund, makes purchases and sales of portfolio securities consistent with the Fund's investment objective and policies. The Board considered the scope and quality of services provided by BBH under the IA Agreement and noted that the scope of services provided had expanded over time, primarily, as a result of regulatory developments. The Board noted that, for example, BBH is responsible for maintaining and monitoring its own and, to varying degrees, the Funds' compliance program, and these compliance programs have recently been refined and enhanced in light of new regulatory requirements. The Board considered the quality of the investment research capabilities of BBH and the other resources it has dedicated to performing services for the Funds. The Board concluded that, overall, they were satisfied with the nature, extent and quality of services provided (and expected to be provided) to each of the Funds under the IA Agreement. Costs of Services Provided and Profitability to BBH At the request of the Board, BBH provided information concerning the profitability of BBH's investment company, advisory fees and other fees and its statement of condition for the recent period and as of December 31, 2005, respectively. The Board also reviewed BBH's profitability data for each Fund, which also included the effect of revenue generated by the shareholder servicing, administration, custody and other fees paid by a Fund. The Board noted that most beneficial owners of the Funds' shares are holding these shares in the context of an overall investment management program for which BBH is the adviser and for which BBH charges an investment management fee. Since BBH excludes the assets in the Funds when calculating its advisory fees for its clients, the Board agreed that it is appropriate in an analysis of Fund profitability to reduce the advisory fees for the Funds by the advisory fees that otherwise would have been earned by BBH on the assets involved. The Board discussed the difficulty of making comparisons of profitability from fund advisory contracts because comparative information is not generally publicly available and is affected by numerous factors, including the structure of the particular adviser, the types of funds it manages, its business mix, numerous assumptions regarding allocations and the adviser's capital structure and cost of capital. In considering profitability information, the Board considered the effect of fall-out benefits on BBH's expenses, as well as the "revenue sharing" arrangements BBH has entered into with certain entities that distribute shares of the Funds. The Board focused on profitability of BBH's relationships with the Funds before taxes and distribution expenses. The Board concluded that it was satisfied that BBH's level of profitability from its relationship with each Fund was not excessive. FINANCIAL STATEMENT DECEMBER 31, 2006 25 BBH U.S. MONEY MARKET PORTFOLIO DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) The Board also considered the advisory fees of each Fund in comparison to the fees of comparable funds. The Board recognized that the expense ratios for the Funds potentially reflected on BBH's provision of services, as BBH is directly the provider of substantial services and coordinates services provided to the Fund by others. The Board took note of situations in which BBH waived its management fee or reimbursed a Fund's expenses. Fall-Out Benefits The Board considered that BBH did not allocate the Funds' portfolio transactions for third party research, although it did benefit from proprietary research received from brokers that execute the Funds' purchases and sales of securities. The Board recognized that the aggregate amount of commissions generated by Fund transactions was unlikely to result in the Funds receiving from full service broker dealers substantial discounts on commission rates. The Board received and reviewed information concerning BBH's policies with respect to allocating portfolio brokerage. The Board also considered that BBH receives shareholder servicing fees from certain funds, and is the Funds' administrator, custodian and securities lending agent. The Board noted that BBH retained no portion of the 12b-1 fees paid by a Fund that operated with a plan. The Board recognized that BBH's profitability would be somewhat lower if it did not receive proprietary research for commissions or, if it did not receive the other benefits described above. The Board recognized that most Fund shareholders were also BBH clients, and that substantial assets are invested in the Funds as a result of an overall investment management program for the shareholder. The Board noted that the Funds also derive reputational and other benefits from their association with BBH and their use of the BBH name, which is licensed to the Funds by BBH. Thus, the Board did not believe that BBH revenues associated with its clients should be fairly regarded as "fallout" benefit from the Funds. Economies of Scale The Board noted that the Funds' advisory fee schedules do not contain breakpoints. As a result, if assets increase, the fee rates would not be reduced on the incremental assets. There may be other economies of scale because many expenses did not rise (and fall) proportionally to increases (and decreases) in total net assets. The Board noted that BBH had priced the advisory services in recognition of the fact that it was largely its own clients who were shareholders and, accordingly, sought to assure that the cost of advisory service and total expenses for each Fund were fair and reasonable. Consequently, the advisory fees are in the range of institutional separate account fees, which is to say substantially below, even taking into account the BBH administration fees, typical mutual fund fees. In addition, the Board noted that BBH had supported and continued to support certain Funds through fee waivers and expense reimbursements. Based on information they had been provided over many years, the Board observed that in the mutual fund industry as a whole, as well as among funds similar to the Funds, there appeared to be no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. In light of the Fund's current size and expense structure, the Board concluded that it was unnecessary at this time to consider breakpoints. 26 BBH U.S. MONEY MARKET PORTFOLIO DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) Investment Results The Board considered the investment results of each of the Funds as compared to investment companies with its peers and with one or more selected securities indices. In addition to the information received by the Board for the meeting, the Board received detailed performance information for each Fund at each regular Board meeting during the year. At the meeting, the Board reviewed information showing performance of each Fund compared to the peers generally over the 1-, 3-, 5- and since inception periods ended October 31, 2005 and compared to one or more securities indices over comparable periods. Advisory Fee Rate The Board considered the advisory fee rate paid by each Fund to BBH. The Board recognized that it is difficult to make comparisons of these fees, and combined advisory and administration fees, because there are variations in the services that are included in the fees paid by other funds. BBH also manages accounts for institutional clients with investment objectives similar to those of certain Funds. The fee rates payable by the BBH's institutional clients are generally comparable although occasionally lower, than the rates paid by the Funds. BBH reviewed with the Board the significant differences in the scope of services that BBH provides to institutional clients and to the Funds through both the IA and Administration Agreements (the "Admin. Agreements"). For example, BBH provides, among other things, officers (including the Funds' Chief Compliance Officer and officers to provide required certifications) and administrative services, such as shareholder communications, and tax compliance, with the attendant costs and exposure to liability. BBH also coordinates the provision of services to the Funds by nonaffiliated service providers. These services normally are not provided to non investment company clients, and fees charged to the Funds reflect the costs and risks of the additional obligations. The Board also noted that since the Funds are constantly issuing and redeeming their shares, they are more difficult to manage than an institutional account, where the assets are relatively stable. Accordingly, the Board did not place significant weight on these fee comparisons. The following factors specific to BBH U.S. Money Market Portfolio also were noted and considered by the Board in deciding to approve the continuation of the IA Agreements: The Trustees reviewed information showing performance of the Portfolio compared to other funds in the iMoneyNet (1st Tier Institutional). The comparative information showed that the Portfolio had superior performance compared to the averages in these categories over all relevant periods. The Trustees also viewed with favor that the total expense ratio was substantially lower than the averages in these categories. The Trustees also noted that the BBH U.S. Money Market Portfolio had maintained a stable net asset value of one dollar at all times. Taking into account these comparisons and the other factors considered, the Trustees concluded that the Portfolio's investment results over time and expense ratios had been satisfactory. FINANCIAL STATEMENT DECEMBER 31, 2006 27 - -------------------------------------------------------------------------------- INVESTMENT ADVISER AND ADMINISTRATOR BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 DISTRIBUTOR EDGEWOOD SERVICES, INC. 5800 CORPORATE DRIVE PITTSBURGH, PA 15237-7000 SHAREHOLDER SERVICING AGENT BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 (800) 625-5759 To obtain information or make shareholder inquiries: By telephone: Call 1-800-575-1265 By E-mail send your request to: bbhfunds@bbh.com On the internet: www.bbhfunds.com This report is submitted for the general information of shareholders and is not authorized for distribution to prospective investors unless preceded or accompanied by an effective prospectus. Nothing herein contained is to be considered an offer of sale or a solicitation of an offer to buy shares of the Fund. Such offering is made only by the prospectus, which includes details as to offering price and other material information. The BBH U.S. Money Market Portfolio files with the SEC a complete schedule of its portfolio holdings, as of the close of the first and third quarters of its fiscal year, on "Form N-Q." Information on Form N-Q is available without charge and upon request by calling the Funds at the toll-free number listed above. A text only version can be viewed online or downloaded from the SEC's website at http://www.sec.gov; and may be reviewed and copied at the SEC's Public Reference Room in Washington, DC (call 1-800-SEC-0330 for information on the operation of the Public Reference Room). You may also access this information from the BBH website at BBH.com by clicking on "BBH Mutual Funds" and selecting "Online Documents/Holdings Information." A copy of the Fund's Proxy Voting Policy is available upon request by calling the toll-free number listed above. A text-only version of the policy can be viewed online or downloaded from the SEC at www.sec.gov. BROWN [LOGO] BROTHERS HARRIMAN BROWN [LOGO] BROTHERS HARRIMAN Semi-Annual Report DECEMBER 31, 2006 BBH U.S. TREASURY MONEY FUND BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO ALLOCATION December 31, 2006 (unaudited) BREAKDOWN BY SECURITY TYPE Percent of U.S. $ Value Net Assets ------------ ---------- U.S. Treasury Bills................................ $79,884,574 100.4% Liabilities in Excess of Other Assets.............. (332,635) (0.4) ----------- ----- Net Assets......................................... $79,551,939 100.0% =========== ===== All data as of December 31, 2006. The Fund's breakdown by security type is expressed as a percentage of net assets and may vary over time. The accompanying notes are an integral part of these financial statements. 2 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS December 31, 2006 (unaudited) Principal Amount Value --------- ------------ U.S. TREASURY BILLS(a) (100.4%) $40,860,000 due 01/11/07, 5.01%................................. $40,803,719 25,000,000 due 03/01/07, 4.83%................................. 24,803,743 8,410,000 due 03/08/07, 4.87%................................. 8,335,719 6,000,000 due 03/15/07, 4.88%................................. 5,941,393 ----------- Total U.S. Treasury Bills........................... 79,884,574 ----------- TOTAL INVESTMENTS, AT AMORITIZED COST................... 100.4% $79,884,574 LIABILITIES IN EXCESS OF OTHER ASSETS................... (0.4) (332,635) ----- ----------- NET ASSETS.............................................. 100.0% $79,551,939 ===== =========== - ---------- (a) Rates shown are yields to maturity at time of purchase. The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 3 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES December 31, 2006 (unaudited) ASSETS: Investments, at amortized cost................................. $79,884,574 Cash........................................................... 21,836 Other Asset.................................................... 10,093 ----------- Total Assets................................................. 79,916,503 ----------- LIABILITIES: Payables for: Dividends declared........................................... 185,701 Shareholder servicing fees................................... 38,823 Professional fees............................................ 32,845 Custody and accounting fees.................................. 30,846 Investment advisory fees..................................... 25,881 Administrative fees.......................................... 17,920 Board of Trustees' fees...................................... 1,000 Accrued expenses and other liabilities......................... 31,548 ----------- Total Liabilities............................................ 364,564 ----------- NET ASSETS, for 79,552,072 fund shares outstanding................ $79,551,939 =========== Net Assets Consist of: Par value...................................................... $ 795,521 Paid-in capital in excess of par............................... 78,756,418 ----------- Net Assets........................................................ $79,551,939 =========== NET ASSET VALUE AND OFFERING PRICE PER SHARE...................... $1.00 ===== The accompanying notes are an integral part of these financial statements. 4 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- STATEMENT OF OPERATIONS For the six months ended December 31, 2006 (unaudited) NET INVESTMENT INCOME: Income: Interest.................................................... $2,388,684 ---------- Expenses: Shareholder servicing fees.................................. 108,376 Investment advisory fees.................................... 72,251 Administrative fees......................................... 48,167 Custody and accounting fees................................. 29,304 Professional fees........................................... 14,724 Board of Trustees' fees..................................... 5,612 Miscellaneous expenses...................................... 30,049 ---------- Total Expenses............................................ 308,483 Expense offset arrangement................................ (2,584) ---------- Net Expenses.............................................. 305,899 ---------- Net Investment Income......................................... $2,082,785 ========== The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 5 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 ----------------- -------------- INCREASE (DECREASE) IN NET ASSETS: From Operations: Net investment income ............................... $ 2,082,785 $ 3,683,128 Dividends declared from net investment income ......... (2,082,785) (3,683,261) ------------- ------------- Net decrease in net assets from operations .......... -- (133) ------------- ------------- From Fund Share (Principal) Transactions at Net Asset Value of $1.00 per share: Fund shares sold .................................. 89,683,335 241,663,076 Fund shares issued in reinvestment of dividends ... 913,779 1,530,055 Fund shares repurchased ........................... (122,399,151) (272,459,489) ------------- ------------- Net decrease in net assets resulting from fund share transactions .................. (31,802,037) (29,266,358) 							 ------------- ------------- Total decrease in net assets .................... (31,802,037) (29,266,491) NET ASSETS: Beginning of year ..................................... 111,353,976 140,620,467 ------------- ------------- End of period ......................................... $ 79,551,939 $ 111,353,976 ============= ============= The accompanying notes are an integral part of these financial statements. 6 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS Selected per share data and ratios for a share outstanding throughout each period For the six months ended December 31, For the years ended June 30, 2006 -------------------------------------------------------- (unaudited) 2006 2005 2004 2003 2002 ------------ ---- ---- ---- ---- ---- Net asset value, beginning of year ............. $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 Income from investment operations: Net investment income ......... 0.02 0.03 0.01 0.00(1) 0.01 0.02 Dividends to shareholders from net investment income ............. (0.02) (0.03) (0.01) (0.00)(1) (0.01) (0.02) ----- ----- ----- ----- ----- ----- Net asset value, end of period ... $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 ===== ===== ===== ===== ===== ===== Total return ..................... 2.20% 3.35% 1.41% 0.40% 0.91% 1.95% Ratios/Supplemental data: Net assets, end of period (in millions) ............... $80 $111 $141 $117 $137 $188 Ratio of expenses to average net assets Net expenses paid by Fund ..... 0.63%(2) 0.59% 0.56% 0.59% 0.57% 0.56% Expense offset arrangement .... 0.01%(2) 0.00%(3) 0.01% 0.00%(3) 0.00%(3) 0.00%(3) ----- ----- ----- ----- ----- ----- Total expenses ................... 0.64%(2) 0.59% 0.57% 0.59% 0.57% 0.56% ===== ===== ===== ===== ===== ===== Ratio of net investment income to average net assets ............ 4.32%(2) 3.25% 1.49% 0.39% 0.92% 1.91% - ---------- (1) Less than $0.01 per share. (2) Annualized. (3) Less than 0.01%. The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 7 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS December 31, 2006 (unaudited) 1. Organization and Significant Accounting Policies. BBH U.S. Treasury Money Fund (the "Fund") is a separate, diversified series of BBH Trust (the "Trust"), which is registered under the Investment Company Act of 1940, as amended. The Trust is an open-end management investment company organized as a Massachusetts business trust on June 7, 1983. The Fund commenced operations on March 12, 1991. The Declaration of Trust permits the Trustees to create an unlimited number of series, each of which may issue a separate class of shares. The Trustees have authorized the issuance of an unlimited number of shares of the Fund with a par value of $0.01 per share. At December 31, 2006, there were four series of the Trust. The Fund's financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make certain estimates and assumptions at the date of the financial statements and are based, in part, on the following accounting policies. Actual results could differ from those estimates. A. Valuation of Investments. The Fund values its investments at amortized cost, which approximates market value. The amortized cost method values a security at its cost at the time of purchase and thereafter assumes a constant amortization to maturity of any discount or premium. The Fund's use of amortized cost is in compliance with Rule 2a-7 of the Investment Company Act of 1940. B. Investment Transactions and Income. Investment transactions are accounted for on the trade date. Realized gains and losses, if any, from investment transactions are determined on the basis of identified cost. Interest income consists of interest accrued and discount earned (including both original issue and market discount) and premium amortization on the investments of the Fund, accrued ratably to the date of maturity. C. Federal Income Taxes. Each series of the Trust is treated as a separate entity for federal income tax purposes. It is the Fund's policy to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Accordingly, no federal income tax provision is required. At December 31, 2006, the cost of investments for federal income tax purposes was equal to the amortized cost of investments for financial statement purposes. D. Dividends and Distributions to Shareholders. Dividends from net investment income are declared daily and paid monthly to shareholders. E. Accounting Developments. In June 2006, Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement 109 (FIN 48) was issued and is effective for fiscal years beginning after December 15, 2006. FIN 48 sets forth a threshold for financial statement recognition, measurement and disclosure of a tax position taken 8 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) or expected to be taken on a tax return. While not expected to have a material impact on the Fund's financial statements, management will be evaluating the impact, if any, the adoption of FIN 48 will have on the Funds' net assets and results of operations. In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the implication of SFAS 157. At this time its impact on the Fund's financial statements has not yet been determined. 2. Transactions with Affiliates. Investment Advisory Fees. The Trust has an investment advisory agreement with Brown Brothers Harriman ("BBH") for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.15% of the Fund's average daily net assets. BBH has established a separately identifiable department ("SID") to provide investment advice to mutual funds. The SID is registered with the Securities and Exchange Commission under the Investment Advisors Act of 1940. For the six months ended December 31, 2006, the Fund incurred $72,251 for advisory services. Administrative Fees. The Trust has an administration agreement with Brown Brothers Harriman Trust Company, LLC ("BBHTC") for which BBHTC receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.10% of the Fund's average daily net assets. BBHTC has a sub-administration services agreement with Federated Services Company ("FSC") for which FSC receives compensation paid by BBHTC. For the six months ended December 31, 2006, the Fund incurred $48,167 for administrative services. Shareholder Servicing Fees. The Trust has a shareholder servicing agreement with BBH for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.225% of the Fund's average daily net assets. For the six months ended December 31, 2006, the Fund incurred $108,376 for shareholder servicing services. Custody and Accounting Fees. BBH acts as a custodian and receives a custody and accounting fee from the Fund calculated daily and paid monthly. The custody fee is a transaction based fee with an annual minimum of $20,000, and the accounting fee is calculated at 0.01% per annum on the first $1 billion of net assets and 0.005% per annum on all net assets over $1 billion. For the six months ended December 31, 2006, the Fund incurred $29,304 for custody and accounting services. These fees were reduced by $2,584 as a result of an expense offset arrangement with the Fund's custodian. In the event that the Fund is overdrawn, under the custody agreement with BBH, BBH will make overnight FINANCIAL STATEMENT DECEMBER 31, 2006 9 BBH U.S. TREASURY MONEY FUND NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) loans to the Fund to cover overdrafts. Pursuant to their agreement the Fund will be charged interest based on LIBOR on the day of overdraft plus one percent. The total interest paid by the Fund for the six months ended December 31, 2006 was $8,374. Board of Trustees' Fees. Each Trustee receives an annual fee as well as reimbursement for reasonable out-of-pocket expenses from the Fund. For the six months ended December 31, 2006, the Fund incurred $5,612 for Trustees' fees. 10 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF FUND EXPENSES December 31, 2006 (unaudited) EXAMPLE As a shareholder of BBH U.S. Treasury Money Fund (the "Fund"), you may incur two types of costs: (1) transaction costs on purchase payments, reinvested dividends, or other distributions; and exchange fees; and (2) ongoing costs, including management fees; and other Fund expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2006 to December 31, 2006). ACTUAL EXPENSES The first line of the table below provides information about actual account values and actual expenses. You may use information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period" to estimate the expenses you paid on your account during the period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid during the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. Expenses Paid Beginning Ending During Period Account Value Account Value July 1, 2006 to July 1, 2006 December 31, 2006 December 31, 2006(1) ------------- ----------------- -------------------- Actual................. $1,000 $1,022.00 $3.21 Hypothetical(2)........ $1,000 $1,022.03 $3.21 - ---------- (1) Expenses are equal to the Fund's annualized expense ratio of 0.63%, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (2) Assumes a return of 5% before expenses. For the purpose of the calculation, the applicable annualized expense ratio is subtracted from the assumed return before expenses. FINANCIAL STATEMENT DECEMBER 31, 2006 11 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION December 31, 2006 (unaudited) Approval of Continuation of Investment Advisory Agreement At a meeting held on December 11, 2006, the Board of Trustees (the "Board") of BBH Trust, Inc. (the "Corporation") unanimously approved the renewal of the Investment Advisory Agreement (the "IA Agreement") between the Corporation and Brown Brothers Harriman & Co. ("BBH") for an additional one-year term. The following is a summary of the factors the Board took into consideration in making its determination to approve the renewal of the IA Agreement. Nature, Extent and Quality of Services Provided by BBH The Board noted that, under the IA Agreement in respect of each Fund, BBH, subject to the supervision of the Board, is responsible for providing a continuous investment program and, for each Fund other than the International Fund, makes purchases and sales of portfolio securities consistent with the Fund's investment objective and policies. The Board considered the scope and quality of services provided by BBH under the IA Agreement and noted that the scope of services provided had expanded over time, primarily, as a result of regulatory developments. The Board noted that, for example, BBH is responsible for maintaining and monitoring its own and, to varying degrees, the Funds' compliance program, and these compliance programs have recently been refined and enhanced in light of new regulatory requirements. The Board considered the quality of the investment research capabilities of BBH and the other resources it has dedicated to performing services for the Funds. The Board concluded that, overall, they were satisfied with the nature, extent and quality of services provided (and expected to be provided) to each of the Funds under the IA Agreement. Costs of Services Provided and Profitability to BBH At the request of the Board, BBH provided information concerning the profitability of BBH's investment company, advisory fees and other fees and its statement of condition for the recent period and as of December 31, 2005, respectively. The Board also reviewed BBH's profitability data for each Fund, which also included the effect of revenue generated by the shareholder servicing, administration, custody and other fees paid by a Fund. The Board noted that most beneficial owners of the Funds' shares are holding these shares in the context of an overall investment management program for which BBH is the adviser and for which BBH charges an investment management fee. Since BBH excludes the assets in the Funds when calculating its advisory fees for its clients, the Board agreed that it is appropriate in an analysis of Fund profitability to reduce the advisory fees for the Funds by the advisory fees that otherwise would have been earned by BBH on the assets involved. The Board discussed the difficulty of making comparisons of profitability from fund advisory contracts because comparative information is not generally publicly available and is affected by numerous factors, including the structure of the particular adviser, the types of funds it manages, its business mix, numerous assumptions regarding allocations and the adviser's capital structure and cost of capital. In considering profitability information, the Board considered the effect of fall-out benefits on BBH's expenses, as well 12 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) as the "revenue sharing" arrangements BBH has entered into with certain entities that distribute shares of the Funds. The Board focused on profitability of BBH's relationships with the Funds before taxes and distribution expenses. The Board concluded that it was satisfied that BBH's level of profitability from its relationship with each Fund was not excessive. The Board also considered the advisory fees of each Fund in comparison to the fees of comparable funds. The Board recognized that the expense ratios for the Funds potentially reflected on BBH's provision of services, as BBH is directly the provider of substantial services and coordinates services provided to the Fund by others. The Board took note of situations in which BBH waived its management fee or reimbursed a Fund's expenses. Fall-Out Benefits The Board considered that BBH did not allocate the Funds' portfolio transactions for third party research, although it did benefit from proprietary research received from brokers that execute the Funds' purchases and sales of securities. The Board recognized that the aggregate amount of commissions generated by Fund transactions was unlikely to result in the Funds receiving from full service broker dealers substantial discounts on commission rates. The Board received and reviewed information concerning BBH's policies with respect to allocating portfolio brokerage. The Board also considered that BBH receives shareholder servicing fees from certain funds, and is the Funds' administrator, custodian and securities lending agent. The Board noted that BBH retained no portion of the 12b-1 fees paid by the Fund that operated with a plan. The Board recognized that BBH's profitability would be somewhat lower if it did not receive proprietary research for commissions or, if it did not receive the other benefits described above. The Board recognized that most Fund shareholders were also BBH clients, and that substantial assets are invested in the Funds as a result of an overall investment management program for the shareholder. The Board noted that the Funds also derive reputational and other benefits from their association with BBH and their use of the BBH name, which is licensed to the Funds by BBH. Thus, the Board did not believe that BBH revenues associated with its clients should be fairly regarded as "fallout" benefit from the Funds. Economies of Scale The Board noted that the Funds' advisory fee schedules do not contain breakpoints. As a result, if assets increase, the fee rates would not be reduced on the incremental assets. There may be other economies of scale because many expenses did not rise (and fall) proportionally to increases (and decreases) in total net assets. The Board noted that BBH had priced the advisory services in recognition of the fact that it was largely its own clients who were shareholders and, accordingly, sought to assure that the cost of advisory service and total expenses for each Fund were fair and reasonable. Consequently, the advisory fees are in the range of institutional separate account fees, which is to say substantially below, even taking into account the BBH administration fees, typical mutual fund fees. In addition, the Board noted FINANCIAL STATEMENT DECEMBER 31, 2006 13 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) that BBH had supported and continued to support certain Funds through fee waivers and expense reimbursements. Based on information they had been provided over many years, the Board observed that in the mutual fund industry as a whole, as well as among funds similar to the Funds, there appeared to be no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. In light of the Fund's current size and expense structure, the Board concluded that it was unnecessary at this time to consider breakpoints. Investment Results The Board considered the investment results of each of the Funds as compared to investment companies with its peers and with one or more selected securities indices. In addition to the information received by the Board for the meeting, the Board received detailed performance information for each Fund at each regular Board meeting during the year. At the meeting, the Board reviewed information showing performance of each Fund compared to the peers generally over the 1-, 3-, 5- and since inception periods ended October 31, 2005 and compared to one or more securities indices over comparable periods. Advisory Fee Rate The Board considered the advisory fee rate paid by each Fund to BBH. The Board recognized that it is difficult to make comparisons of these fees, and combined advisory and administration fees, because there are variations in the services that are included in the fees paid by other funds. BBH also manages accounts for institutional clients with investment objectives similar to those of certain Funds. The fee rates payable by the BBH's institutional clients are generally comparable although occasionally lower, than the rates paid by the Funds. BBH reviewed with the Board the significant differences in the scope of services that BBH provides to institutional clients and to the Funds through both the IA and Administration Agreements (the "Admin. Agreements"). For example, BBH provides, among other things, officers (including the Funds' Chief Compliance Officer and officers to provide required certifications) and administrative services, such as shareholder communications, and tax compliance, with the attendant costs and exposure to liability. BBH also coordinates the provision of services to the Funds by nonaffiliated service providers. These services normally are not provided to non investment company clients, and fees charged to the Funds reflect the costs and risks of the additional obligations. The Board also noted that since the Funds are constantly issuing and redeeming their shares, they are more difficult to manage than an institutional account, where the assets are relatively stable. Accordingly, the Board did not place significant weight on these fee comparisons. The following factors specific to BBH U.S. Treasury Money Fund also were noted and considered by the Board in deciding to approve the continuation of the IA Agreements: 14 BBH U.S. TREASURY MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) The Trustees considered the 1-, 3- and 5-year annualized total returns versus the iMoneyNet (Treasury Retail). The Trustees noted favorable comparisons versus that average for the most recent periods and, in their view, immaterial difference over longer ones. Moreover, they had been appropriately advised by BBH about its duration and average weighted maturity decisions during the relevant periods and were satisfied overall with the competitiveness of the performance. The Trustees also noted with favor that the expense ratio was substantially lower than that of the average. The Trustees also noted that the Fund had successfully maintained a stable net asset value of one dollar at all times. Taking into account these comparisons and the other factors considered, the Trustees concluded that the Fund's investment results over time and its total expense ratio had been satisfactory. FINANCIAL STATEMENT DECEMBER 31, 2006 15 INVESTMENT ADVISER AND ADMINISTRATOR BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 DISTRIBUTOR EDGEWOOD SERVICES, INC. 5800 CORPORATE DRIVE PITTSBURGH, PA 15237-7000 SHAREHOLDER SERVICING AGENT BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 (800) 625-5759 To obtain information or make shareholder inquiries: By telephone: Call 1-800-575-1265 By E-mail send your request to: bbhfunds@bbh.com On the internet: www.bbhfunds.com This report is submitted for the general information of shareholders and is not authorized for distribution to prospective investors unless preceded or accompanied by an effective prospectus. Nothing herein contained is to be considered an offer of sale or a solicitation of an offer to buy shares of the Fund. Such offering is made only by the prospectus, which includes details as to offering price and other material information. The Fund files with the SEC a complete schedule of its portfolio holdings, as of the close of the first and third quarters of its fiscal year, on "Form N-Q." Information on Form N-Q is available without charge and upon request by calling the Funds at the toll-free number listed above. A text only version can be viewed online or downloaded from the SEC's website at http://www.sec.gov; and may be reviewed and copied at the SEC's Public Reference Room in Washington, DC (call 1-800-SEC-0330 for information on the operation of the Public Reference Room). You may also access this information from the BBH website at BBH.com by clicking on "BBH Mutual Funds" and selecting "Online Documents/Holdings Information." A copy of the Fund's Proxy Voting Policy is available upon request by calling the toll-free number listed above. A text-only version of the policy can be viewed online or downloaded from the SEC at www.sec.gov. BROWN [LOGO] BROTHERS HARRIMAN BROWN[LOGO] BROTHERS HARRIMAN BBH Tax Free Short / Intermediate Fixed Income Fund Financial Statements December 31, 2006 (unaudited) BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES December 31, 2006 (unaudited) ASSETS: Cash $ 67,780 Other Receivables 527 ----------- Total Assets 68,307 ----------- LIABILITIES: Payables for: Professional fees 34,678 Custody and accounting fees 5,637 Dividends and distributions declared 5,004 Investment advisory fees 8 Shareholder servicing fees 8 Administrative fees 5 Accrued expenses and other liabilities 13,452 ----------- Total Liabilities 58,792 ----------- NET ASSETS $ 9,515 =========== Net Assets Consist of: Par value $ 9 Paid-in capital in excess of par 1,631,366 Distributions in excess of net investment income (3,277) Accumulated net realized loss on investments (1,618,583) ----------- Net Assets $ 9,515 =========== NET ASSET VALUE AND OFFERING PRICE PER SHARE ($9,515 /948 shares outstanding) $ 10.04 =========== The accompanying notes are an integral part of these financial statements. - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- STATEMENT OF OPERATIONS For the six months ended December 31, 2006 (unaudited) NET INVESTMENT INCOME: Income: Interest income $ 465,148 ----------- Expenses: Investment advisory fees 36,568 Shareholder servicing fees 36,568 Administrative fees 21,941 Professional fees 6,706 Custody and accounting fees 3,209 Miscellaneous expenses 3,453 ----------- Total Expenses 108,445 Expense offset arrangement (3,209) ----------- Net Expenses 105,236 ----------- Net Investment Income 359,912 ----------- NET REALIZED AND UNREALIZED GAIN: Net realized loss on investments (666,146) Net change in unrealized appreciation on investments 1,142,143 ----------- Net Realized and Unrealized Gain 475,997 ----------- Net Increase in Net Assets Resulting From Operations $ 835,909 =========== The accompanying notes are an integral part of these financial statements. - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 ----------------- ------------- INCREASE IN NET ASSETS: From Operations: Net investment income $ 359,912 $ 1,563,650 Net realized loss on investments (666,146) (884,563) Net change in unrealized depreciation on investments 1,142,143 (615,369) ------------- ------------- Net increase in net assets resulting from operations 835,909 63,718 ------------- ------------- Dividends and distributions declared: From net investment income (359,912) (1,563,651) ------------- ------------- Total dividends and distributions declared (359,912) (1,563,651) ------------- ------------- Fund shares transactions: Net proceeds from sales of fund shares 381,749 13,031,845 Net asset value of fund shares issued to shareholders in reinvestment of distributions 105,922 659,458 Net cost of fund shares repurchased (57,853,334) (56,181,746) ------------- ------------- Net decrease in net assets resulting from fund shares transactions (57,365,663) (42,490,443) ------------- ------------- Total decrease in net assets (56,889,666) (43,990,376) NET ASSETS: Beginning of year 56,899,181 100,889,557 ------------- ------------- End of period (including distributions in excess of net investment income of $3,277 and $3,277, respectively) $ 9,515 $ 56,899,181 ============= ============= The accompanying notes are an integral part of these financial statements. - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS Selected per share data and ratios for a share outstanding throughout each period For the six months ended December 31, For the years ended June 30, 2006 --------------------------------------------------------------------- (unaudited) 2006 2005 2004 2003 2002 ------------ ---- ---- ---- ---- ---- Net asset value, beginning of year $ 10.33 $10.52 $ 10.55 $ 10.87 $ 10.73 $10.53 ------- ------ ------- ------- ------- ------ Income from investment operations: Net investment income 0.12(1) 0.21 0.23 0.18 0.25 0.31 Net realized and unrealized gain (loss) on investments 7.86 (0.19) (0.05) (0.28) 0.18 0.22 ------- ------ ------- ------- ------- ------ Total income (loss) from investment operations 7.98 0.02 0.18 (0.10) 0.43 0.53 ------- ------ ------- ------- ------- ------ Less dividends and distributions: From net investment income (8.27) (0.21) (0.18) (0.18) (0.26) (0.31) From net realized gains -- -- (0.03) (0.04) (0.03) (0.02) ------- ------ ------- ------- ------- ------ Total dividends and distributions (8.27) (0.21) (0.21) (0.22) (0.29) (0.33) ------- ------ ------- ------- ------- ------ Net asset value, end of period $ 10.04 $10.33 $ 10.52 $ 10.55 $ 10.87 $10.73 ======= ====== ======= ======= ======= ====== Total return 0.93%(2) 0.18% 1.75% (0.75%) 4.04% 5.14% Ratios/Supplemental data: Net assets, end of period (in millions) $ -- $ 57 $ 101 $ 126 $ 107 $ 82 Ratio of expenses to average net assets: Net expenses paid by Fund 0.72%(3) 0.85% 0.80% 0.80% 0.82% 0.83% Expense offset arrangement 0.02%(3) 0.00%(4) 0.00%(4) 0.00%(4) 0.00%(4) 0.01% ------- ------ ------- ------- ------- ------ Total expenses 0.74%(3) 0.85% 0.80% 0.80% 0.82% 0.84% ======= ====== ======= ======= ======= ====== Ratio of net investment income to average net assets 2.46%(3) 1.97% 1.68% 1.86% 2.33% 2.90% Portfolio turnover rate 385%(3) 79% 89% 90% 82% 94% - ---------- (1) Calculated based on average shares outstanding. (2) Calculation perfomed by time weighted return model based on total net assets and external cash flows. (3) Annualized. (4) Amount is less than 0.01%. The accompanying notes are an integral part of these financial statements. - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS December 31, 2006 (unaudited) 1. Organization and Significant Accounting Policies. BBH Tax Free Short/Intermediate Fixed Income Fund (the "Fund") is a separate, diversified series of BBH Trust (the "Trust"), which is registered under the Investment Company Act of 1940, as amended. The Trust is an open-end management investment company organized as a Massachusetts business trust on June 7, 1983. The Fund commenced operations on July 23, 1992. The Declaration of Trust permits the Trustees to create an unlimited number of series, each of which may issue a separate class of shares. The Trustees have authorized the issuance of an unlimited number of shares of the Fund with a par value of $0.01 per share. At December 31, 2006, there were four series of the Trust. The Fund's financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make certain estimates and assumptions at the date of the financial statements and are based, in part, on the following accounting policies. Actual results could differ from those estimates. A. Valuation of Investments. Bonds and other fixed income securities (other than short-term obligations, but including listed issues) are valued on the basis of valuations furnished by pricing services, use of which has been approved by the Board of Trustees. In making such valuations, the pricing services utilize both dealer-supplied valuations and electronic data processing techniques which take into account appropriate factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics and other market data, without exclusive reliance upon quoted prices or exchange or over-the-counter prices, since such valuations are believed to reflect more accurately the fair value of such securities. Securities or other assets for which market quotations are not readily available are valued at fair value in accordance with procedures established by and under the general supervision and responsibility of the Trustees. Short-term investments which mature in 60 days or less are valued at amortized cost, which approximates market value. B. Accounting for Investments and Income. Investment transactions are accounted for on the trade date. Realized gains and losses, if any, from investment transactions are determined on the basis of identified cost. Interest income is accrued daily and consists of interest accrued, discount earned (including both original issue and market discount) and premium amortization on the investments of the Fund. The Fund invests primarily in debt securities issued by municipalities. The ability of the issuers of the debt securities to meet their obligation may be affected by economic developments in a specific state or municipality. Debt obligations may be placed on non-accrual status and related interest income may be reduced by ceasing current accruals and writing off interest receivable when the collection of all or a portion of interest has become doubtful based on constantly applied procedures. A debt obligation is removed from non-accrual status when the issuer resumes interest payments or when collectibility of interest is reasonable assured. C. Federal Income Taxes. It is the Corporation's policy to comply with the requirements of the Internal Revenue Code (the "Code") applicable to regulated investment companies and to distribute all of its taxable income to its shareholders. Accordingly, no federal income tax provision is required. The Fund files a tax return annually using tax accounting methods required under provisions of the Code which may differ from accounting principles generally accepted in the United States of America, the basis on which these financial statements are prepared. Accordingly, the amount of net investment income and net realized gain reported on these financial statements may differ from that reported on the Fund's tax return due to certain book-to-tax timing differences such as losses deferred due to "wash sale" transactions and utilization of capital loss carryforwards. These differences result in temporary over-distributions for financial statement purposes and are classified as distributions in excess of accumulated net realized gains or net investment income. These distributions do not constitute a return of capital. Permanent differences are reclassified on the Statement of Assets & Liabilities BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) based upon their tax classification. As such, the character of distributions to shareholders reported in the Financial Highlights table may differ from that reported to shareholders on Form 1099-DIV. D. Dividends and Distributions to Shareholders. Dividends from net investment income are declared daily and paid monthly. Distributions from net capital gains, if any, are paid at least annually and are recorded on the ex-dividend date. Distributions paid by the Fund from net interest received on tax-exempt bonds are not includable by shareholders as gross income for federal income tax purposes because the Fund intends to meet certain requirements of the Code applicable to regulated investment companies which will enable the Fund to pay tax-exempt interest dividends. Capital Loss Carryforward. At June 30, 2006 the fund had a net capital loss carryforward of approximately $305,022 which expires as follows: June 30, 2014 $305,019 June 30, 2013 $ 3 E. Accounting Developments. In June 2006, Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement 109 (FIN 48) was issued and is effective for fiscal years beginning after December 15, 2006. FIN 48 sets forth a threshold for financial statement recognition, measurement and disclosure of a tax position taken or expected to be taken on a tax return. While not expected to have a material impact on the Fund's financial statements, management will be evaluating the impact, if any, the adoption of FIN 48 will have on the Funds' net assets and results of operations. In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the implication of SFAS 157. At this time its impact on the Fund's financial statements has not yet been determined. 2. Transactions with Affiliates. Investment Advisory Fees. The Trust has an investment advisory agreement with Brown Brothers Harriman ("BBH") for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.25% of the Fund's average daily net assets. BBH has established a separately identifiable department ("SID") to provide investment advice to mutual funds. The SID is registered with the Securities and Exchange Commission under the Investment Advisors Act of 1940. For the six months ended December 31, 2006, the Fund incurred $36,568 for advisory services. Administrative Fees. The Trust has an administration agreement with Brown Brothers Harriman Trust Company, LLC ("BBHTC") for which BBHTC receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.15% of the Fund's average daily net assets. BBHTC has a sub-administration services agreement with Federated Services Company ("FSC") for which FSC receives compensation paid by BBHTC. For the six months ended December 31, 2006, the Fund incurred $21,941 for administrative services. Shareholder Servicing Fees. The Trust has a shareholder servicing agreement with BBH for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.25% of the Fund's average daily net assets. For the six months ended December 31, 2006, the Fund incurred $36,568 for shareholder servicing services. BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) Custody and Accounting Fees. BBH acts as a custodian and receives a custody and accounting fee from the Fund calculated daily and paid monthly. The custody fee is a transaction based fee with an annual minimum of $20,000, and the accounting fee is calculated at 0.04% per annum on the first $100 million of net assets, 0.02% per annum on the next $400 million of net assets and 0.01% per annum on all net assets over $500 million. For the six months ended December 31, 2006, the Fund incurred $3,209 for custody and accounting services. These fees were reduced by $3,209 as a result of an expense offset arrangement with the Fund's custodian. In the event that the Fund is overdrawn, under the custody agreement with BBH, BBH will make overnight loans to the Fund to cover overdrafts. Pursuant to their agreement the Fund will be charged interest based on LIBOR on the day of overdraft plus one percent. The total interest paid by the Fund for the six months ended December 31, 2006 was $585. Board of Trustees' Fees. Each Trustee receives an annual fee as well as reimbursement for reasonable out-of-pocket expenses from the Fund. For the six months ended December 31, 2006, the Fund incurred $0 for Trustees' fees. 3. Investment Transactions. For the six months ended December 31, 2006, the cost of purchases and the proceeds of sales of investment securities other than short-term investments were $57,421,933 and $113,920,678, respectively. 4. Share Transactions. Transactions in fund shares were as follows: For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 ----------------- -------------- Fund shares sold 36,699 1,242,250 Fund shares issued in connection with reinvestment of dividends 10,198 63,324 Fund shares repurchased (5,554,386) (5,385,157) ---------- ---------- Net decrease (5,507,489) (4,079,583) ========== ========== 5. Subsequent Event. At a meeting held on October 2, 2006, the Board of Trustees of the Fund determined that it was in the best interest of the Fund's shareholders to liquidate the Fund. Shareholders were given notice of this determination, along with a request that shares of the Fund be redeemed before October 31, 2006. At a subsequent meeting held on December 11, 2006, the Board authorized the involuntary redemption of the outstanding shares of the Fund, in complete liquidation of the Fund. Shareholders were given notice on January 23, 2007 that on or after March 26, 2007 the Fund will redeem their shares. BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- DISCLOSURE OF FUND EXPENSES December 31, 2006 (unaudited) EXAMPLE As a shareholder of BBH Tax Free Short/Intermediate Fixed Income Fund (the "Fund"), you may incur two types of costs: (1) transaction costs on purchase payments, reinvested dividends, or other distributions; and exchange fees; and (2) ongoing costs, including management fees; and other Fund expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2006 to December 31, 2006). ACTUAL EXPENSES The first line of the table below provides information about actual account values and actual expenses. You may use information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period" to estimate the expenses you paid on your account during the period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid during the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. Expenses Paid Beginning Ending During Period Account Value Account Value July 1, 2006 to July 1, 2006 December 31, 2006 December 31, 2006(1) ------------- ----------------- -------------------- Actual $1,000 $1,009.30 $3.65 Hypothetical(2) $1,000 $1,021.58 $3.67 - ---------- (1) Expenses are equal to the Fund's annualized expense ratio of 0.72%, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (2) Assumes a return of 5% before expenses. For the purpose of the calculation, the applicable annualized expense ratio is subtracted from the assumed return before expenses. - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION DECEMBER 31, 2006 (UNAUDITED) Approval of Continuation of Investment Advisory Agreement At a meeting held on December 11, 2006, the Board of Trustees (the "Board") of BBH Trust (the "Trust") unanimously approved the renewal of the Investment Advisory Agreement (the "IA Agreement") between the Trust and Brown Brothers Harriman & Co. ("BBH") for an additional one-year term. The following is a summary of the factors the Board took into consideration in making its determination to approve the renewal of the IA Agreement. Nature, Extent and Quality of Services Provided by BBH The Board noted that, under the IA Agreement in respect of each Fund, BBH, subject to the supervision of the Board, is responsible for providing a continuous investment program and, for each Fund other than the International Fund, makes purchases and sales of portfolio securities consistent with the Fund's investment objective and policies. The Board considered the scope and quality of services provided by BBH under the IA Agreement and noted that the scope of services provided had expanded over time, primarily, as a result of regulatory developments. The Board noted that, for example, BBH is responsible for maintaining and monitoring its own and, to varying degrees, the Funds' compliance program, and these compliance programs have recently been refined and enhanced in light of new regulatory requirements. The Board considered the quality of the investment research capabilities of BBH and the other resources it has dedicated to performing services for the Funds. The Board concluded that, overall, they were satisfied with the nature, extent and quality of services provided (and expected to be provided) to each of the Funds under the IA Agreement. Costs of Services Provided and Profitability to BBH At the request of the Board, BBH provided information concerning the profitability of BBH's investment company, advisory fees and other fees and its statement of condition for the recent period and as of December 31, 2005, respectively. The Board also reviewed BBH's profitability data for each Fund, which also included the effect of revenue generated by the shareholder servicing, administration, custody and other fees paid by a Fund. The Board noted that most beneficial owners of the Funds' shares are holding these shares in the context of an overall investment management program for which BBH is the adviser and for which BBH charges an investment management fee. Since BBH excludes the assets in the Funds when calculating its advisory fees for its clients, the Board agreed that it is appropriate in an analysis of Fund profitability to reduce the advisory fees for the Funds by the advisory fees that otherwise would have been earned by BBH on the assets involved. The Board discussed the difficulty of making comparisons of profitability from fund advisory contracts because comparative information is not generally publicly available and is affected by numerous factors, including the structure of the particular adviser, the types of funds it manages, its business mix, numerous assumptions regarding allocations and the adviser's capital structure and cost of capital. In considering profitability information, the Board considered the effect of fall-out benefits on BBH's expenses, as well as the "revenue sharing" arrangements BBH has entered into with certain entities that distribute shares of the Funds. The Board focused on profitability of BBH's relationships with the Funds before taxes and distribution expenses. The - -------------------------------------------------------------------------------- BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (CONTINUED) DECEMBER 31, 2006 (UNAUDITED) Board concluded that it was satisfied that BBH's level of profitability from its relationship with each Fund was not excessive. The Board also considered the advisory fees of each Fund in comparison to the fees of comparable funds. The Board recognized that the expense ratios for the Funds potentially reflected on BBH's provision of services, as BBH is directly the provider of substantial services and coordinates services provided to the Fund by others. The Board took note of situations in which BBH waived its management fee or reimbursed a Fund's expenses. Fall-Out Benefits The Board considered that BBH did not allocate the Funds' portfolio transactions for third party research, although it did benefit from proprietary research received from brokers that execute the Funds' purchases and sales of securities. The Board recognized that the aggregate amount of commissions generated by Fund transactions was unlikely to result in the Funds receiving from full service broker dealers substantial discounts on commission rates. The Board received and reviewed information concerning BBH's policies with respect to allocating portfolio brokerage. The Board also considered that BBH receives shareholder servicing fees from certain funds, and is the Funds' administrator, custodian and securities lending agent. The Board noted that BBH retained no portion of the 12b-1 fees paid by the Fund that operated with a plan. The Board recognized that BBH's profitability would be somewhat lower if it did not receive proprietary research for commissions or, if it did not receive the other benefits described above. The Board recognized that most Fund shareholders were also BBH clients, and that substantial assets are invested in the Funds as a result of an overall investment management program for the shareholder. The Board noted that the Funds also derive reputational and other benefits from their association with BBH and their use of the BBH name, which is licensed to the Funds by BBH. Thus, the Board did not believe that BBH revenues associated with its clients should be fairly regarded as "fallout" benefit from the Funds. Economies of Scale The Board noted that the Funds' advisory fee schedules do not contain breakpoints. As a result, if assets increase, the fee rates would not be reduced on the incremental assets. There may be other economies of scale because many expenses did not rise (and fall) proportionally to increases (and decreases) in total net assets. The Board noted that BBH had priced the advisory services in recognition of the fact that it was largely its own clients who were shareholders and, accordingly, sought to assure that the cost of advisory service and total expenses for each Fund were fair and reasonable. Consequently, the advisory fees are in the range of institutional separate account fees, which is to say substantially below, even taking into account the BBH administration fees, typical mutual fund fees. In addition, the Board noted that BBH had supported and continued to support certain Funds through fee waivers and expense reimbursements. Based on information they had been provided over many years, the Board observed that in the mutual fund industry as a whole, as well as among funds similar to the Funds, there appeared to be no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. In light of the Fund's current size and expense structure, the Board concluded that it was unnecessary at this time to consider breakpoints. BBH TAX FREE SHORT/INTERMEDIATE FIXED INCOME FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (CONTINUED) DECEMBER 31, 2006 (UNAUDITED) Investment Results The Board considered the investment results of each of the Funds as compared to investment companies with its peers and with one or more selected securities indices. In addition to the information received by the Board for the meeting, the Board received detailed performance information for each Fund at each regular Board meeting during the year. At the meeting, the Board reviewed information showing performance of each Fund compared to the peers generally over the 1-, 3-, 5- and since inception periods ended October 31, 2005 and compared to one or more securities indices over comparable periods. Advisory Fee Rate The Board considered the advisory fee rate paid by each Fund to BBH. The Board recognized that it is difficult to make comparisons of these fees, and combined advisory and administration fees, because there are variations in the services that are included in the fees paid by other funds. BBH also manages accounts for institutional clients with investment objectives similar to those of certain Funds. The fee rates payable by the BBH's institutional clients are generally comparable although occasionally lower, than the rates paid by the Funds. BBH reviewed with the Board the significant differences in the scope of services that BBH provides to institutional clients and to the Funds through both the IA and Administration Agreements (the "Admin. Agreements"). For example, BBH provides, among other things, officers (including the Funds' Chief Compliance Officer and officers to provide required certifications) and administrative services, such as shareholder communications, and tax compliance, with the attendant costs and exposure to liability. BBH also coordinates the provision of services to the Funds by nonaffiliated service providers. These services normally are not provided to non investment company clients, and fees charged to the Funds reflect the costs and risks of the additional obligations. The Board also noted that since the Funds are constantly issuing and redeeming their shares, they are more difficult to manage than an institutional account, where the assets are relatively stable. Accordingly, the Board did not place significant weight on these fee comparisons. The following factors specific to BBH Tax Free Short/Intermediate Fixed Income Fund also were noted and considered by the Board in deciding to approve the continuation of the IA Agreements: The Trustees reviewed information showing performance of the Fund compared to the Lehman 3-Year Municipal Bond Index. The Fund generally lagged the Index over all relevant periods, which resulted from management's decision to construct a defensive portfolio in recent years. The Trustees understood management's decision and were pleased to see a portfolio with higher quality securities and a shorter duration than the Index. The Trustees viewed with favor this performance and noted the benchmark has no fees. The Trustees also noted the Fund's expense ratio was in line with or lower than many Funds of similar size and investment mandate. Taking into account these comparisons and the other factors considered, the Trustees concluded that the Fund's investment results over time and its total expense ratio had been satisfactory. INVESTMENT ADVISER AND ADMINISTRATOR BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 DISTRIBUTOR EDGEWOOD SERVICES, INC. 5800 CORPORATE DRIVE PITTSBURGH, PA 15237-7000 SHAREHOLDER SERVICING AGENT BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 (800) 625-5759 To obtain information or make shareholder inquiries: By telephone: Call 1-800-575-1265 By E-mail send your request to: bbhfunds@bbh.com On the internet: www.bbhfunds.com This report is submitted for the general information of shareholders and is not authorized for distribution to prospective investors unless preceded or accompanied by an effective prospectus. Nothing herein contained is to be considered an offer of sale or a solicitation of an offer to buy shares of the Fund. Such offering is made only by the prospectus, which includes details as to offering price and other material information. The Fund files with the SEC a complete schedule of its portfolio holdings, as of the close of the first and third quarters of its fiscal year, on "Form N-Q." Information on Form N-Q is available without charge and upon request by calling the Funds at the toll-free number listed above. A text only version can be viewed online or downloaded from the SEC's website at http://www.sec.gov; and may be reviewed and copied at the SEC's Public Reference Room in Washington, DC (call 1-800-SEC-0330 for information on the operation of the Public Reference Room). You may also access this information from the BBH website at BBH.com by clicking on "BBH Mutual Funds" and selecting "Online Documents/Holdings Information." A copy of the Fund's Proxy Voting Policy is available upon request by calling the toll-free number listed above. A text-only version of the policy can be viewed online or downloaded from the SEC at www.sec.gov. BROWN[LOGO] BROTHERS HARRIMAN BROWN [LOGO] BROTHERS HARRIMAN Semi-Annual Report DECEMBER 31, 2006 BBH TAX EXEMPT MONEY FUND BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO ALLOCATION December 31, 2006 (unaudited) BREAKDOWN BY BOND TYPE Percent of U.S. $ Value Net Assets ------------ ---------- Certificate of Participation.................... $ 2,100,000 0.5% Education....................................... 69,516,001 15.5 General Obligations............................. 103,131,351 23.1 Health Care..................................... 20,080,000 4.5 Industrial...................................... 61,380,000 13.7 Miscellaneous................................... 35,065,000 7.8 Special Tax..................................... 4,800,000 1.1 Transportation.................................. 16,565,000 3.7 Utilities....................................... 25,742,065 5.8 Water/Sewer..................................... 27,702,232 6.2 Commercial Paper................................ 79,513,000 17.8 Other Assets In Excess of Liabilities........... 1,360,060 0.3 ------------ ----- Net Assets...................................... $446,954,709 100.0% ============ ===== TOP FIVE HOLDINGS BY STATE Percent of U.S. $ Value Net Assets ------------ ---------- New York........................................ $ 61,626,167 13.8% Texas........................................... 51,926,900 11.6 California...................................... 32,350,000 7.2 Massachusetts................................... 30,825,000 6.9 North Carolina.................................. 22,657,589 5.1 Other States.................................... 246,208,993 55.1 Other Assets In Excess of Liabilities........... 1,360,060 0.3 ------------ ----- Net Assets...................................... $446,954,709 100.0% ============ ===== All data as of December 31, 2006. The Fund's breakdown by bond type and top five holdings by state are expressed as a percentage of net assets and may vary over time. The accompanying notes are an integral part of these financial statements. 2 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (81.9%) CERTIFICATE OF PARTICIPATION (0.5%) $ 2,100,000 Denver, Colorado, City & Council(1) ....... 01/03/07 3.930% $ 2,100,000 ------------ EDUCATION (15.5%) 1,200,000 Chicago Board of Education(1) ............. 01/02/07 4.000 1,200,000 5,600,000 Chicago Board of Education(1) ............. 01/02/07 4.000 5,600,000 2,600,000 Clark County, Nevada, School District(1) .. 01/02/07 3.990 2,600,000 3,700,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/02/07 3.900 3,700,000 1,500,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/02/07 3.900 1,500,000 600,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/02/07 3.900 600,000 3,400,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/02/07 3.900 3,400,000 4,000,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/03/07 3.920 4,000,000 3,300,000 Connecticut State Health & Educational Facilities Authority(1) ..... 01/03/07 3.920 3,300,000 600,000 Florida State Board of Education........... 01/01/07 5.000 600,000 2,600,000 Massachusetts State Development Finance Agency, Boston University Revenue(1).................... 01/02/07 3.980 2,600,000 1,850,000 Massachusetts State Health & Educational Facilities Authority(1) ..... 01/02/07 3.880 1,850,000 3,000,000 Massachusetts State Health & Educational Facilities Authority(1) ..... 01/02/07 3.950 3,000,000 3,000,000 Massachusetts State Health & Educational Facilities Authority(1) ..... 01/04/07 3.920 3,000,000 3,350,000 Mesquite, Texas School District ........... 08/15/08 4.700 3,373,857 4,910,000 Michigan State University(1) .............. 01/03/07 3.970 4,910,000 2,000,000 Missouri State Health & Education Facilities Authority(1) ................. 01/02/07 3.950 2,000,000 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 3 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) EDUCATION (continued) $ 2,800,000 New Hampshire Health & Education Facilities Authority(1) ................. 01/03/07 3.950% $ 2,800,000 8,275,000 New Hampshire Health & Education Facilities Authority(1) ................. 01/03/07 3.950 8,275,000 1,400,000 New Jersey State Educational Facilities Authority(1) ................. 01/02/07 3.900 1,400,000 1,000,000 Ohio State University(1) .................. 01/04/07 3.720 1,000,000 500,000 Ohio State University(1) .................. 01/04/07 3.850 500,000 3,000,000 Ohio State University(1) .................. 01/04/07 3.850 3,000,000 2,500,000 University of Missouri(1) ................. 01/02/07 3.980 2,500,000 1,800,000 University of Pittsburgh(1) ............... 01/03/07 3.970 1,800,000 1,000,000 University of Texas ....................... 07/01/07 5.000 1,007,144 ------------ Total Education............................ 69,516,001 ------------ GENERAL OBLIGATIONS (23.1%) 7,700,000 California State(1) ....................... 01/02/07 3.820 7,700,000 1,000,000 Charlotte, North Carolina ................. 02/01/07 4.750 1,000,994 5,000,000 Connecticut State(1) ...................... 01/04/07 4.000 5,000,000 2,500,000 Delaware State ............................ 04/01/07 5.250 2,510,541 2,385,000 District of Columbia(1) ................... 01/03/07 4.000 2,385,000 3,165,000 Fairfax County, Virginia .................. 04/01/07 5.000 3,176,417 1,000,000 Fairfax County, Virginia .................. 06/01/07 5.000 1,006,077 1,730,000 Fairfax County, Virginia .................. 10/01/07 5.000 1,748,920 3,770,000 Georgia State ............................. 05/01/07 5.000 3,787,903 1,545,000 Harris County, Texas ...................... 10/01/07 4.000 1,550,376 1,880,000 Hawaii State .............................. 03/01/07 6.000 1,886,763 5,000,000 Hawaii State .............................. 04/01/07 5.000 5,017,792 1,430,000 Jefferson County, Alabama(1) .............. 01/02/07 3.950 1,430,000 1,700,000 Maryland State ............................ 02/01/07 5.000 1,702,126 1,850,000 Maryland State ............................ 03/01/07 5.000 1,853,816 4,000,000 Massachusetts State(1) .................... 01/02/07 3.960 4,000,000 2,625,000 Massachusetts State(1) .................... 01/04/07 3.960 2,625,000 1,275,000 Mecklenburg County, North Carolina ........ 04/01/07 5.000 1,279,607 2,000,000 Minneapolis, Minnesota(1) ................. 01/04/07 3.760 2,000,000 620,000 Minneapolis, Minnesota(1) ................. 01/04/07 3.760 620,000 The accompanying notes are an integral part of these financial statements. 4 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) GENERAL OBLIGATIONS (continued) $ 9,200,000 Minneapolis, Minnesota(1) ................. 01/04/07 3.760% $ 9,200,000 750,000 New York, New York(1) ..................... 01/02/07 3.850 750,000 1,300,000 New York, New York(1) ..................... 01/02/07 3.850 1,300,000 600,000 New York, New York(1) ..................... 01/02/07 3.900 600,000 600,000 New York, New York(1) ..................... 01/02/07 3.900 600,000 900,000 New York, New York(1) ..................... 01/02/07 3.950 900,000 1,800,000 New York, New York(1) ..................... 01/02/07 3.950 1,800,000 1,600,000 New York, New York(1) ..................... 01/02/07 3.950 1,600,000 400,000 New York, New York(1) ..................... 01/02/07 3.970 400,000 6,100,000 North Carolina State ...................... 03/01/07 4.000 6,104,431 1,000,000 North Carolina State ...................... 03/01/07 5.000 1,002,096 2,550,000 North Carolina State ...................... 03/01/07 5.000 2,555,935 1,700,000 North Carolina State ...................... 05/01/07 4.000 1,702,594 2,500,000 North Carolina State ...................... 05/01/07 5.000 2,511,931 8,700,000 Texas State ............................... 08/31/07 4.500 8,752,393 1,000,000 Utah State ................................ 07/01/07 5.500 1,009,635 10,000,000 Washington Suburban Sanitation District ................................ 06/01/07 5.000 10,061,004 ------------ Total General Obligations.................. 103,131,351 ------------ HEALTH CARE (4.5%) 8,000,000 New York State Dormitory Authority Revenue(1) .................... 01/04/07 3.900 8,000,000 2,000,000 New York State Dormitory Authority(1) ..... 01/04/07 3.950 2,000,000 2,580,000 Oklahoma State Industries Authority, Hospital Revenue(1) ..................... 01/02/07 4.000 2,580,000 2,500,000 Ross County, Ohio(1) ...................... 01/02/07 3.990 2,500,000 5,000,000 Royal Oak, Michigan, Hospital Finance Authority(1) .................... 01/04/07 3.970 5,000,000 ------------ Total Health Care.......................... 20,080,000 ------------ INDUSTRIAL (13.7%) 5,700,000 Bartow County Development Authority(1) .... 01/02/07 4.050 5,700,000 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 5 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) INDUSTRIAL (continued) $ 1,000,000 California Pollution Control Financing Authority(1)............................. 01/02/07 3.710% $ 1,000,000 1,100,000 California Statewide Communities Development Authority, Pollution Control Revenue(1)....................... 01/02/07 3.880 1,100,000 3,300,000 Columbia, Alabama, Pollution Control Revenue(1)............................... 01/02/07 4.000 3,300,000 3,900,000 Columbia, Alabama, Pollution Control Revenue(1)............................... 01/02/07 4.000 3,900,000 600,000 Delaware County, Pennsylvania, Industrial Development Authority(1)................. 01/03/07 3.880 600,000 1,000,000 East Baton Rouge, Parish Louisiana, Pollution Control Revenue(1)............. 01/02/07 3.940 1,000,000 13,050,000 Forsyth, Montana, Pollution Control Revenue(1)............................... 01/02/07 4.000 13,050,000 2,200,000 Gulf Coast Waste Disposal Authority, Texas(1)................................. 01/02/07 3.940 2,200,000 2,300,000 Harris County, Texas, Pollution Control Revenue(1)............................... 01/02/07 3.940 2,300,000 2,400,000 Harris County, Texas, Pollution Control Revenue(1)............................... 01/02/07 3.990 2,400,000 1,000,000 Hurley, New Mexico, Pollution Control Revenue(1)............................... 01/02/07 3.970 1,000,000 5,000,000 Jackson County, Mississippi, Port Facility Revenue(1)...................... 01/02/07 4.000 5,000,000 4,000,000 Kemmerer, Wyoming, Pollution Control Revenue(1)............................... 01/02/07 3.940 4,000,000 500,000 Lincoln County, Wyoming, Pollution Control Revenue(1)....................... 01/02/07 3.860 500,000 2,590,000 Lincoln County, Wyoming, Pollution Control Revenue(1)....................... 01/02/07 3.940 2,590,000 2,440,000 Lincoln County, Wyoming, Pollution Control Revenue(1)....................... 01/02/07 3.940 2,440,000 The accompanying notes are an integral part of these financial statements. 6 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) INDUSTRIAL (continued) $ 800,000 Midlothian, Texas, Pollution Control Revenue(1)............................... 01/03/07 3.930% $ 800,000 2,000,000 MT Vernon Industries Pollution Control & Solid Waste Disposal Revenue(1)........ 01/04/07 3.880 2,000,000 1,800,000 Sweetwater County, Wyoming, Pollution Control Revenue(1)....................... 01/02/07 4.000 1,800,000 1,300,000 Valdez, Alaska, Marine Terminal Revenue(1)................................ 01/02/07 3.900 1,300,000 2,200,000 Valdez, Alaska, Marine Terminal Revenue(1)................................ 01/02/07 3.900 2,200,000 1,200,000 Valdez, Alaska, Marine Terminal Revenue(1)............................... 01/02/07 3.940 1,200,000 ------------ Total Industrial........................... 61,380,000 ------------ MISCELLANEOUS (7.8%) 3,125,000 Alaska State Housing Finance Corp. Revenue(1) .............................. 01/04/07 4.030 3,125,000 600,000 California State Economic Recovery Bond(1) ................................. 01/02/07 3.750 600,000 1,365,000 Clayton County, Georgia, Housing Authority(1) ............................ 01/04/07 3.990 1,365,000 1,300,000 Colorado Housing & Finance Authority(1) ... 01/03/07 4.000 1,300,000 2,800,000 Illinois Finance Authority(1) ............. 01/02/07 4.000 2,800,000 200,000 New York, New York, City Transitional Finance Authority(1) .................... 01/02/07 3.890 200,000 2,000,000 New York, New York, City Transitional Finance Authority(1) .................... 01/02/07 3.890 2,000,000 300,000 New York, New York, City Transitional Finance Authority(1) .................... 01/02/07 3.980 300,000 2,170,000 New York, New York, City Transitional Finance Authority(1) .................... 01/03/07 3.950 2,170,000 1,000,000 New York, New York, City Transitional Finance Authority(1) .................... 01/03/07 3.950 1,000,000 1,200,000 New York, New York, City Transitional Finance Authority(1) .................... 01/03/07 3.950 1,200,000 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 7 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) MISCELLANEOUS (continued) $ 5,100,000 New York, New York, City Transitional Finance Authority(1)..................... 01/04/07 3.350% $ 5,100,000 900,000 New York State Local Government Assistance Corp.(1)...................... 01/03/07 3.850 900,000 3,500,000 New York State Local Government Assistance Corp.(1)...................... 01/03/07 3.900 3,500,000 3,405,000 Oklahoma State Capital Improvement Authority(1)............................. 01/02/07 4.000 3,405,000 5,300,000 Oklahoma State Capital Improvement Authority(1)...................... ...... 01/02/07 4.000 5,300,000 800,000 Will County, Illinois, Exempt Facilities Revenue(1)............................... 01/02/07 4.020 800,000 ------------ Total Miscellaneous........................ 35,065,000 ------------ SPECIAL TAX (1.1%) 4,800,000 Riverside County, California, Special Tax(1)........................... 01/03/07 3.730 4,800,000 ------------ TRANSPORTATION (3.7%) 5,000,000 Kansas State Department of Transportation & Highway Revenue(1) ..... 01/02/07 3.990 5,000,000 1,100,000 Los Angeles, California, Department of Airports Revenue(1) ..................... 01/02/07 4.000 1,100,000 3,200,000 Metropolitan Transportation Authority, New York(1) ............................. 01/04/07 3.850 3,200,000 4,300,000 Metropolitan Transportation Authority, New York, Revenue(1) .................... 01/02/07 4.000 4,300,000 1,965,000 Pennsylvania Turnpike Commission(1) ....... 01/02/07 4.000 1,965,000 1,000,000 Port of Port Arthur Navigation District(1) 01/02/07 4.000 1,000,000 ------------ Total Transportation....................... 16,565,000 ------------ UTILITIES (5.8%) 6,350,000 Long Island Power Authority New York, Electric System(1) ...................... 01/02/07 3.880 6,350,000 4,600,000 Municipal Electric Authority of Georgia(1) 01/03/07 3.920 4,600,000 The accompanying notes are an integral part of these financial statements. 8 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) UTILITIES (continued) $ 3,940,000 New York State Environmental Facilities Corp ......................... 04/15/07 5.000% $ 3,953,935 4,100,000 New York, New York, City Municipal Water Finance Authority(1) .............. 01/02/07 3.880 4,100,000 2,000,000 New York, New York, City Municipal Water Finance Authority(1) .............. 01/02/07 3.970 2,000,000 900,000 Piedmont Municipal Power Agency Electric Revenue(1) ..................... 01/03/07 4.000 900,000 2,535,000 San Antonio,Texas ......................... 02/01/07 5.000 2,538,130 1,300,000 Washington State Public Power Supply System(1) ........................ 01/03/07 3.900 1,300,000 ------------ Total Utilities............................ 25,742,065 ------------ WATER/SEWER (6.2%) 1,300,000 Boston, Massachusetts, Water & Sewer Commission(1) ..................... 01/04/07 3.840 1,300,000 500,000 California State Department of Water Resources(1) ............................ 01/02/07 3.860 500,000 1,800,000 California State Department of Water Resources(1) ............................ 01/03/07 3.870 1,800,000 10,250,000 California State Department of Water Resources(1) ............................ 01/04/07 3.750 10,250,000 3,500,000 Durham, North Carolina, Water & Sewer Revenue(1) ........................ 01/03/07 4.000 3,500,000 400,000 Irvine Ranch, California, Water District(1) 01/02/07 3.630 400,000 900,000 Massachusetts State Water Resources Authority(1) ............................ 01/03/07 3.880 900,000 1,550,000 Massachusetts State Water Resources Authority(1) ............................ 01/03/07 3.880 1,550,000 3,100,000 Metropolitan Water District of Southern California(1) ........................... 01/02/07 3.850 3,100,000 2,400,000 New York, New York, City Municipal Water Finance Authority(1) .............. 01/02/07 3.970 2,400,000 1,000,000 New York State Environmental Facilities Corp. ........................ 06/15/07 4.000 1,002,232 The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 9 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS (continued) December 31, 2006 (unaudited) Principal Maturity Interest Amount Date Rate Value --------- -------- -------- ----- MUNICIPAL BONDS (continued) WATER/SEWER (continued) $ 1,000,000 Ohio State Solid Waste Revenue(1).......... 01/02/07 4.020% $ 1,000,000 ------------ Total Water/Sewer.......................... 27,702,232 ------------ Total Municipal Bonds...................... 366,081,649 ------------ COMMERCIAL PAPER (17.8%) 5,000,000 Austin, Texas Independent School District . 02/06/07 3.530 5,000,000 1,800,000 Board of Regent Texas ..................... 02/12/07 3.550 1,800,000 12,000,000 City and County of Honolulu, Hawaii ....... 02/05/07 3.500 12,000,000 3,000,000 City of Charlotte, North Carolina ......... 02/07/07 3.590 3,000,000 7,000,000 City of Houston, Texas .................... 01/11/07 3.630 7,000,000 1,000,000 City of Houston, Texas .................... 02/01/07 3.580 1,000,000 3,000,000 City of Houston, Texas .................... 02/02/07 3.520 3,000,000 5,500,000 County of Montgomery, Pennsylvania ........ 02/02/07 3.550 5,500,000 2,000,000 County of Montgomery, Pennsylvania ........ 03/07/07 3.530 2,000,000 2,200,000 Maryland Health & Education ............... 02/01/07 3.600 2,200,000 2,000,000 Massachusetts State Health & Educational Facilities Authority ........ 01/09/07 3.580 2,000,000 3,000,000 Massachusetts State Health & Educational Facilities Authority ........ 02/09/07 3.580 3,000,000 5,000,000 Massachusetts Water Resource Authority ............................... 02/08/07 3.520 5,000,000 5,000,000 Omaha Public Power ........................ 02/07/07 3.500 5,000,000 4,588,000 Tennessee State School Bond ............... 02/09/07 3.560 4,588,000 9,220,000 Tennessee State School Bond ............... 02/09/07 3.570 9,220,000 3,705,000 Texas Public Finance ...................... 02/12/07 3.550 3,705,000 1,500,000 Texas Public Finance ...................... 03/08/07 3.580 1,500,000 3,000,000 University of Texas ....................... 02/12/07 3.550 3,000,000 ------------ Total Commercial Paper..................... 79,513,000 ------------ TOTAL INVESTMENTS, AT AMORTIZED COST............................... 99.7% $445,594,649 OTHER ASSETS IN EXCESS OF LIABILITIES.............................. 0.3 1,360,060 ----- ------------ NET ASSETS......................................................... 100.0% $446,954,709 ===== ============ - ---------- (1) Variable rate instrument. Interest rates change on specific dates (such as a coupon or interest payment date). The yield shown represents the December 31, 2006 coupon or interest rate. The accompanying notes are an integral part of these financial statements. 10 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES December 31, 2006 (unaudited) ASSETS: Investments, at amortized cost ................................ $445,594,649 Cash .......................................................... 318,767 Interest receivable ........................................... 2,264,656 Other receivable .............................................. 16,739 ------------ Total Assets ................................................ 448,194,811 ------------ LIABILITIES: Payables for: Dividends declared .......................................... 717,536 Shareholder servicing fees .................................. 192,716 Investment advisory fees .................................... 115,630 Custody and accounting fees ................................. 94,032 Administrative fees ......................................... 77,086 Professional fees ........................................... 40,674 Board of Trustees' fees ..................................... 1,000 Accrued expenses and other liabilities ........................ 1,428 ------------ Total Liabilities ......................................... 1,240,102 ------------ NET ASSETS, for 446,954,709 fund shares outstanding .............. $446,954,709 ============ Net Assets Consist of: Par value ................................................... $ 4,469,547 Paid-in capital ............................................. 442,485,162 ------------ Net Assets ....................................................... $446,954,709 ============ NET ASSET VALUE AND OFFERING PRICE PER SHARE ..................... $1.00 ===== The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 11 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- STATEMENT OF OPERATIONS For the six months ended December 31, 2006 (unaudited) NET INVESTMENT INCOME: Income: Investment income ......................................... $ 8,410,922 ------------ Expenses: Shareholder servicing fees ................................ 596,876 Investment advisory fees .................................. 358,126 Administrative fees ....................................... 238,750 Custody and accounting fees ............................... 91,312 Board of Trustees' fees ................................... 28,676 Professional fees ......................................... 19,440 Miscellaneous expenses .................................... 68,091 ----------- Total Expenses .......................................... 1,401,271 Expense offset arrangement .............................. (15,874) ----------- Net Expenses ............................................ 1,385,397 ----------- Net Investment Income ....................................... $ 7,025,525 =========== The accompanying notes are an integral part of these financial statements. 12 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS For the six months ended For the December 31, 2006 year ended (unaudited) June 30, 2006 ----------------- ------------- INCREASE (DECREASE) IN NET ASSETS: From Operations: Net investment income ............................. $ 7,025,525 $ 11,092,429 Dividends declared from net investment income ....... (7,026,754) (11,095,940) ------------- ------------- Net decrease in net assets from operations ........ (1,229) (3,511) ------------- ------------- From Fund Share (Principal) Transactions at Net Asset Value of $1.00 per share: Fund shares sold ................................ 156,118,555 544,563,550 Fund shares issued in reinvestment of dividends . 3,393,364 5,793,650 Fund shares repurchased ......................... (205,715,339) (494,840,334) ------------- ------------- Net increase (decrease) in net assets resulting from fund share transactions .................. (46,203,420) 55,516,866 ------------- ------------- Total increase (decrease) in net assets ......... (46,204,649) 55,513,355 NET ASSETS: Beginning of year ................................... 493,159,358 437,646,003 ------------- ------------- End of period ....................................... $ 446,954,709 $ 493,159,358 ============= ============= The accompanying notes are an integral part of these financial statements. FINANCIAL STATEMENT DECEMBER 31, 2006 13 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS Selected per share data and ratios for a share outstanding throughout each period For the six months ended December 31, For the years ended June 30, 2006 ----------------------------------------------------- (unaudited) 2006 2005 2004 2003 2002 ------------- ---- ---- ---- ---- ---- Net asset value, beginning of year ............... $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 Income from investment operations: Net investment income ........... 0.01 0.02 0.01 0.00(1) 0.01 0.01 Dividends to shareholders from net investment income ...... (0.01) (0.02) (0.01) (0.00)(1) (0.01) (0.01) ----- ----- ----- ----- ----- ----- Net asset value, end of period ..... $1.00 $1.00 $1.00 $1.00 $1.00 $1.00 ===== ===== ===== ===== ===== ===== Total return ....................... 1.50% 2.31% 1.15% 0.42% 0.72% 1.40% Ratios/Supplemental data: Net assets, end of period (in millions) ................. $447 $493 $438 $453 $465 $414 Net expenses paid by Fund ....... 0.58%(2) 0.56% 0.56% 0.55% 0.56% 0.53% Expense offset arrangement ...... 0.01%(2) 0.00%(3) 0.00%(3) 0.00%(3) 0.01% 0.02% ----- ----- ----- ----- ----- ----- Total expenses ................ 0.59%(2) 0.56% 0.56% 0.55% 0.57% 0.55% ===== ===== ===== ===== ===== ===== Ratio of net investment income to average net assets ......... 2.94%(2) 2.31% 1.15% 0.42% 0.72% 1.28% - ---------- (1) Less than $0.01 per share. (2) Annualized. (3) Less than 0.01%. The accompanying notes are an integral part of these financial statements. 14 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS December 31, 2006 (unaudited) 1. Organization and Significant Accounting Policies. BBH Tax Exempt Money Fund (the "Fund") is a separate, diversified series of BBH Trust (the "Trust"), which is registered under the Investment Company Act of 1940, as amended. The Trust is an open-end management investment company organized as a Massachusetts business trust on June 7, 1983. The Fund commenced operations on February 22, 1999. The Declaration of Trust permits the Trustees to create an unlimited number of series, each of which may issue a separate class of shares. The Trustees have authorized the issuance of an unlimited number of shares of the Fund with a par value of $0.01 per share. At December 31, 2006, there were four series of the Trust. The Fund's financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make certain estimates and assumptions at the date of the financial statements and are based, in part, on the following accounting policies. Actual results could differ from those estimates. A. Valuation of Investments. The Fund values its investments at amortized cost, which approximates market value. The amortized cost method values a security at its cost at the time of purchase and thereafter assumes a constant amortization to maturity of any discount or premium. The Fund's use of amortized cost is in compliance with Rule 2a-7 of the Investment Company Act of 1940. B. Investment Transactions and Income. Investment transactions are accounted for on the trade date. Realized gains and losses, if any, from investment transactions are determined on the basis of identified cost. The Fund invests primarily in debt securities issued by municipalities. The ability of the issuers of the debt securities to meet their obligation may be affected by economic developments in a specific state or municipality. Interest income consists of interest accrued and discount earned (including both original issue and market discount) and premium amortization on the investments of the Fund, accrued ratably to the date of maturity. C. Federal Income Taxes. Each series of the Trust is treated as a separate entity for federal income tax purposes. It is the Fund's policy to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Accordingly, no federal income tax provision is required. At December 31, 2006, the cost of investments for federal income tax purposes was equal to the amortized cost of investments for financial statement purposes. D. Dividends and Distributions to Shareholders. Dividends from net investment income are declared daily and paid monthly to shareholders. E. Accounting Developments. In June 2006, Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement 109 (FIN 48) was issued and is effective for fiscal years beginning after December 15, 2006. FIN 48 sets forth FINANCIAL STATEMENT DECEMBER 31, 2006 15 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) a threshold for financial statement recognition, measurement and disclosure of a tax position taken or expected to be taken on a tax return. While not expected to have a material impact on the Fund's financial statements, management will be evaluating the impact, if any, the adoption of FIN 48 will have on the Funds' net assets and results of operations. In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the implication of SFAS 157. At this time its impact on the Fund's financial statements has not yet been determined. 2. Transactions with Affiliates. Investment Advisory Fees. The Trust has an investment advisory agreement with Brown Brothers Harriman ("BBH") for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.15% of the Fund's average daily net assets. BBH has established a separately identifiable department ("SID") to provide investment advice to mutual funds. The SID is registered with the Securities and Exchange Commission under the Investment Advisors Act of 1940. For the six months ended December 31, 2006, the Fund incurred $358,126 for advisory services. Administrative Fees. The Trust has an administration agreement with Brown Brothers Harriman Trust Company, LLC ("BBHTC") for which BBHTC receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.10% of the Fund's average daily net assets. BBHTC has a sub-administration services agreement with Federated Services Company ("FSC") for which FSC receives compensation paid by BBHTC. For the six months ended December 31, 2006, the Fund incurred $238,750 for administrative services. Shareholder Servicing Fees. The Trust has a shareholder servicing agreement with BBH for which BBH receives a fee from the Fund calculated daily and paid monthly at an annual rate of 0.25% of the Fund's average daily net assets. For the six months ended December 31, 2006, the Fund incurred $596,876 for shareholder servicing services. Custody and Accounting Fees. BBH acts as a custodian and receives a custody and accounting fee from the Fund calculated daily and paid monthly. The custody fee is a transaction based fee with an annual minimum of $20,000, and the accounting fee is calculated at 0.01% per annum on the first $1 billion of net assets and 0.005% per annum on all net assets over $1 billion. For the six months ended December 31, 2006, the Fund incurred $91,312 for custody and accounting services. These fees were reduced by $15,874 as a result of an expense offset arrangement with the Fund's custodian. In the event that the Fund is overdrawn, under the custody agreement with BBH, BBH will make 16 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (continued) December 31, 2006 (unaudited) overnight loans to the Fund to cover overdrafts. Pursuant to their agreement the Fund will be charged interest based on LIBOR on the day of overdraft plus one percent. The total interest paid by the Fund for the six months ended December 31, 2006 was $1,929. Board of Trustees' Fees. Each Trustee receives an annual fee as well as reimbursement for reasonable out-of-pocket expenses from the Fund. For the six months ended December 31, 2006, the Fund incurred $28,676 for Trustees' fees. FINANCIAL STATEMENT DECEMBER 31, 2006 17 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF FUND EXPENSES December 31, 2006 (unaudited) EXAMPLE As a shareholder of BBH Tax Exempt Money Fund (the "Fund"), you may incur two types of costs: (1) transaction costs on purchase payments, reinvested dividends, or other distributions; and exchange fees; and (2) ongoing costs, including management fees; and other Fund expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2006 to December 31, 2006). ACTUAL EXPENSES The first line of the table below provides information about actual account values and actual expenses. You may use information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period" to estimate the expenses you paid on your account during the period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid during the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. Expenses Paid Beginning Ending During Period Account Value Account Value July 1, 2006 to July 1, 2006 December 31, 2006 December 31, 2006(1) ------------ ----------------- -------------------- Actual.................. $1,000 $1,015.00 $2.95 Hypothetical(2)......... $1,000 $1,022.28 $2.96 - ---------- (1) Expenses are equal to the Fund's annualized expense ratio of 0.58%, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (2) Assumes a return of 5% before expenses. For the purpose of the calculation, the applicable annualized expense ratio is subtracted from the assumed return before expenses. 18 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION December 31, 2006 (unaudited) Approval of Continuation of Investment Advisory Agreement At a meeting held on December 11, 2006, the Board of Trustees (the "Board") of BBH Trust (the "Trust") unanimously approved the renewal of the Investment Advisory Agreement (the "IA Agreement") between the Trust and Brown Brothers Harriman ("BBH") for an additional one-year term. The following is a summary of the factors the Board took into consideration in making its determination to approve the renewal of the IA Agreement. Nature, Extent and Quality of Services Provided by BBH The Board noted that, under the IA Agreement in respect of each Fund, BBH, subject to the supervision of the Board, is responsible for providing a continuous investment program and, for each Fund other than the International Fund, makes purchases and sales of portfolio securities consistent with the Fund's investment objective and policies The Board considered the scope and quality of services provided by BBH under the IA Agreement and noted that the scope of services provided had expanded over time, primarily, as a result of regulatory developments. The Board noted that, for example, BBH is responsible for maintaining and monitoring its own and, to varying degrees, the Funds' compliance program, and these compliance programs have recently been refined and enhanced in light of new regulatory requirements. The Board considered the quality of the investment research capabilities of BBH and the other resources it has dedicated to performing services for the Funds. The Board concluded that, overall, they were satisfied with the nature, extent and quality of services provided (and expected to be provided) to each of the Funds under the IA Agreement. Costs of Services Provided and Profitability to BBH At the request of the Board, BBH provided information concerning the profitability of BBH's investment company, advisory fees and other fees and its statement of condition for the recent period and as of December 31, 2005, respectively. The Board also reviewed BBH's profitability data for each Fund, which also included the effect of revenue generated by the shareholder servicing, administration, custody and other fees paid by a Fund. The Board noted that most beneficial owners of the Funds' shares are holding these shares in the context of an overall investment management program for which BBH is the adviser and for which BBH charges an investment management fee. Since BBH excludes the assets in the Funds when calculating its advisory fees for its clients, the Board agreed that it is appropriate in an analysis of Fund profitability to reduce the advisory fees for the Funds by the advisory fees that otherwise would have been earned by BBH on the assets involved. The Board discussed the difficulty of making comparisons of profitability from fund advisory contracts because comparative information is not generally publicly available and is affected by numerous factors, including the structure of the particular adviser, the types of funds it manages, its business mix, numerous assumptions regarding allocations and the adviser's capital structure and cost of capital. In consider- FINANCIAL STATEMENT DECEMBER 31, 2006 19 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) ing profitability information, the Board considered the effect of fall-out benefits on BBH's expenses, as well as the "revenue sharing" arrangements BBH has entered into with certain entities that distribute shares of the Funds. The Board focused on profitability of BBH's relationships with the Funds before taxes and distribution expenses. The Board concluded that it was satisfied that BBH's level of profitability from its relationship with each Fund was not excessive. The Board also considered the advisory fees of each Fund in comparison to the fees of comparable funds. The Board recognized that the expense ratios for the Funds potentially reflected on BBH's provision of services, as BBH is directly the provider of substantial services and coordinates services provided to the Fund by others. The Board took note of situations in which BBH waived its management fee or reimbursed a Fund's expenses. Fall-Out Benefits The Board considered that BBH did not allocate the Funds' portfolio transactions for third party research, although it did benefit from proprietary research received from brokers that execute the Funds' purchases and sales of securities. The Board recognized that the aggregate amount of commissions generated by Fund transactions was unlikely to result in the Funds receiving from full service broker dealers substantial discounts on commission rates. The Board received and reviewed information concerning BBH's policies with respect to allocating portfolio brokerage. The Board also considered that BBH receives shareholder servicing fees from certain funds, and is the Funds' administrator, custodian and securities lending agent. The Board noted that BBH retained no portion of the 12b-1 fees paid by the Fund that operated with a plan. The Board recognized that BBH's profitability would be somewhat lower if it did not receive proprietary research for commissions or, if it did not receive the other benefits described above. The Board recognized that most Fund shareholders were also BBH clients, and that substantial assets are invested in the Funds as a result of an overall investment management program for the shareholder. The Board noted that the Funds also derive reputational and other benefits from their association with BBH and their use of the BBH name, which is licensed to the Funds by BBH. Thus, the Board did not believe that BBH revenues associated with its clients should be fairly regarded as "fallout" benefit from the Funds. Economies of Scale The Board noted that the Funds' advisory fee schedules do not contain breakpoints. As a result, if assets increase, the fee rates would not be reduced on the incremental assets. There may be other economies of scale because many expenses did not rise (and fall) proportionally to increases (and decreases) in total net assets. The Board noted that BBH had priced the advisory services in recognition of the fact that it was largely its own clients who were shareholders and, accordingly, sought to assure that the cost of advisory service and total expenses for each Fund were fair and reasonable. Consequently, the advisory 20 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) fees are in the range of institutional separate account fees, which is to say substantially below, even taking into account the BBH administration fees, typical mutual fund fees. In addition, the Board noted that BBH had supported and continued to support certain Funds through fee waivers and expense reimbursements. Based on information they had been provided over many years, the Board observed that in the mutual fund industry as a whole, as well as among funds similar to the Funds, there appeared to be no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. In light of the Fund's current size and expense structure, the Board concluded that it was unnecessary at this time to consider breakpoints. Investment Results The Board considered the investment results of each of the Funds as compared to investment companies with its peers and with one or more selected securities indices. In addition to the information received by the Board for the meeting, the Board received detailed performance information for each Fund at each regular Board meeting during the year. At the meeting, the Board reviewed information showing performance of each Fund compared to the peers generally over the 1-, 3-, 5- and since inception periods ended October 31, 2005 and compared to one or more securities indices over comparable periods. Advisory Fee Rate The Board considered the advisory fee rate paid by each Fund to BBH. The Board recognized that it is difficult to make comparisons of these fees, and combined advisory and administration fees, because there are variations in the services that are included in the fees paid by other funds. BBH also manages accounts for institutional clients with investment objectives similar to those of certain Funds. The fee rates payable by the BBH's institutional clients are generally comparable although occasionally lower, than the rates paid by the Funds. BBH reviewed with the Board the significant differences in the scope of services that BBH provides to institutional clients and to the Funds through both the IA and Administration Agreements (the "Admin. Agreements"). For example, BBH provides, among other things, officers (including the Funds' Chief Compliance Officer and officers to provide required certifications) and administrative services, such as shareholder communications, and tax compliance, with the attendant costs and exposure to liability. BBH also coordinates the provision of services to the Funds by nonaffiliated service providers. These services normally are not provided to non investment company clients, and fees charged to the Funds reflect the costs and risks of the additional obligations. The Board also noted that since the Funds are constantly issuing and redeeming their shares, they are more difficult to manage than an institutional account, where the assets are relatively stable. Accordingly, the Board did not place significant weight on these fee comparisons. FINANCIAL STATEMENT DECEMBER 31, 2006 21 BBH TAX EXEMPT MONEY FUND - -------------------------------------------------------------------------------- DISCLOSURE OF ADVISOR SELECTION (continued) December 31, 2006 (unaudited) The following factors specific to BBH Tax Exempt Money Fund also were noted and considered by the Board in deciding to approve the continuation of the IA Agreements: The Trustees reviewed information showing performance of the Fund compared to iMoneyNet (Tax Free Retail). The Fund outperformed the Average over all relevant periods. The Trustees also viewed with favor that the Fund's portfolio of investments had an overall high quality while the Fund's total expense ratio was lower that the iMoneyNet Average. The Trustees also noted that the Fund had successfully maintained a stable net asset value of one dollar at all times. Taking into account these comparisons and the other factors considered, the Trustees concluded that the Fund's investment results over time and its total expense ratio had been satisfactory. 22 INVESTMENT ADVISER AND ADMINISTRATOR BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 DISTRIBUTOR EDGEWOOD SERVICES, INC. 5800 CORPORATE DRIVE PITTSBURGH, PA 15237-7000 SHAREHOLDER SERVICING AGENT BROWN BROTHERS HARRIMAN 140 BROADWAY NEW YORK, NY 10005 (800) 625-5759 To obtain information or make shareholder inquiries: By telephone: Call 1-800-575-1265 By E-mail send your request to: bbhfunds@bbh.com On the internet: www.bbhfunds.com This report is submitted for the general information of shareholders and is not authorized for distribution to prospective investors unless preceded or accompanied by an effective prospectus. Nothing herein contained is to be considered an offer of sale or a solicitation of an offer to buy shares of the Fund. Such offering is made only by the prospectus, which includes details as to offering price and other material information. The Fund files with the SEC a complete schedule of its portfolio holdings, as of the close of the first and third quarters of its fiscal year, on "Form N-Q." Information on Form N-Q is available without charge and upon request by calling the Funds at the toll-free number listed above. A text only version can be viewed online or downloaded from the SEC's website at http://www.sec.gov; and may be reviewed and copied at the SEC's Public Reference Room in Washington, DC (call 1-800-SEC-0330 for information on the operation of the Public Reference Room). You may also access this information from the BBH website at BBH.com by clicking on "BBH Mutual Funds" and selecting "Online Documents/Holdings Information." A copy of the Fund's Proxy Voting Policy is available upon request by calling the toll-free number listed above. A text-only version of the policy can be viewed online or downloaded from the SEC at www.sec.gov. BROWN [LOGO] BROTHERS HARRIMAN ITEM 2. CODE OF ETHICS. (a)	The Registrant has adopted a code of ethics that applies to the Registrant's principal executive officer, principal financial officer, principal accounting officer or controller or persons performing similar functions. (b)	No answer required. (c)	Not applicable. (d)	Not applicable. (e)	Not applicable. (f) (1) A copy of the code of ethics referenced in Item 2(a) of this Form N-CSR is available and can be mailed, free of charge, to anyone by calling (800) 575-1265. (2) Not applicable. (3) Not applicable. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. (a)(1) The Registrant's Board of Trustees board has designated two members of the audit committee as financial experts. (2) The following Trustees have been designated as audit committee financial experts by the Board of Trustees: independent audit committee members Arthur Miltenberger and David Feldman are the designated audit committee financial experts. 3) Not applicable. (b) No answer required. (c) No answer required. (d) No answer required. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. NOT APPLICABLE SEMI-ANNUAL REPORT ITEM 5. AUDIT COMMITTEE OF LISTED RegistrantS. (a) The Trust has a separately designated audit committee. The members of the audit committee are: Eugene P. Beard, Richard Carpenter, David P. Feldman, Alan G. Lowy and Arthur D. Miltenberger. (b) Not applicable. ITEM 6. SCHEDULE OF INVESTMENTS Not applicable. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 8. PORTFOLIO MANAGERS OF OPEN-END MANAGEMENT INVESTMENT COMPANY. Not applicable. ITEM 9. PURCHASES OF EQUITY SECURITIES BY OPEN-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS Not applicable. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. Not applicable. ITEM 11. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the Registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-CSR, the Registrant's principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the Registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (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. ITEM 12. EXHIBITS. File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (a) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the Registrant intends to satisfy the Item 2 requirements through filing of an exhibit: A copy of the code of ethics is available and can be mailed, free of charge, to anyone by calling (800) 575-1265. (b) A separate certification for each principal executive officer and principal financial officer of the Registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto. [If the report is filed under Section 13(a) or 15(d) of the Exchange Act, provide the certifications required by Rule 30a-2(b) under the Act (17 CFR 270.30a-2(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as an exhibit. A certification furnished pursuant to this paragraph will not be deemed "filed" for the purposes of Section 18 of the Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except to the extent that the Registrant specifically incorporates it by reference: Attached hereto.][The submission of Section 906 certifications has been proposed by the SEC, but has not yet been finalized. The SEC has encouraged issuers to submit Section 906 certifications as an exhibit to Form N-CSR until the final rule has been adopted. Please see Proposed Rule: Certification of Disclosure in Certain Exchange Act Reports, Release No. 33-8212 (March 21, 2003)]. I, John A. Nielsen, certify that: 1. I have reviewed this report on Form N-CSR of BBH Trust on behalf of: BBH Money Market Fund, BBH U.S. Treasury Money Fund, BBH Tax Free Short/Intermediate Fixed Income Fund and BBH Tax Exempt Money Fund ("Registrant"); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows)of the Registrant as of, and for, the periods presented in this report; 4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures as defined in rule 30a-3(c) under the Investment Company Act of 1940) for the Registrant and have: a.) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b.) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; c.) evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and d.) disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal half-year (the Registrant's second fiscal half year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and 5. The Registrant's other certifying officer and I have disclosed to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions): a.) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize, and report financial information; and b.) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting. 6. The Registrant's other certifying officer and I have indicated in this report whether or not there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. DATE: 03-07-07 =============== /s/John A. Nielsen ===================== John A. Nielsen President - Principal Executive Officer I, Charles Schreiber, certify that: 1. I have reviewed this report on Form N-CSR of BBH Trust on behalf of: BBH Money Market Fund, BBH U.S. Treasury Money Fund, BBH Tax Free Short/Intermediate Fixed Income Fund and BBH Tax Exempt Money Fund ("Registrant"); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the Registrant as of, and for, the periods presented in this report; 4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act of 1940) for the Registrant and have: a.) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b.) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; c.) evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and d.) disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal half-year (the Registrant's second fiscal half year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and 5. The Registrant's other certifying officer and I have disclosed to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions): a.) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize, and report financial information; and b.) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting. 6. The Registrant's other certifying officer and I have indicated in this report whether or not there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Date: 03-07-07 ================== /s/Charles Schreiber ========================== Charles Schreiber Treasurer - Principal Financial Officer SECTION 906 CERTIFICATION Pursuant to 18 U.S.C.ss. 1350, the undersigned officers of BBH Trust ("Registrant"), hereby certify, to the best of our knowledge, that the Registrant's Report on Form N-CSR for the period ended December 31, 2006 (the "Report") fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities and Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Dated: 03-07-07 ================== /s/John A. Nielsen ===================== John A. Nielsen Title: President, Principal Executive Officer Dated: 03-07-07 =================== /s/Charles Schreiber ========================= Charles Schreiber Treasurer - Principal Financial Officer This certification is being furnished solely pursuant to 18 U.S.C.ss. 1350 and is not being filed as part of the Report or as a separate disclosure document. SIGNATURES 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. (Registrant) 		BBH TRUST --------------------- By (Signature and Title)* /s/John A. Nielsen ---------------------- John A. Nielsen, President (Principal Executive Officer) Date: 03-07-07 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 (Signature and Title) /s/Charles Schreiber 	 ------------------- Charles Schreiber, Treasurer (Principal Financial Officer) Date: 03-07-07 Print name and title of each signing officer under his or her signature.