FAACX Nuveen Flagship All-American Muni BD Fd (MM)

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk —The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk —If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk —Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Because the Fund invests at least 65% of its assets in low-to-medium-quality bonds, including high yield securities, the Fund’s credit risks are greater than those of funds that buy only investment grade securities. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

Defaulted Bond Risk —Defaulted bonds are speculative and involve substantial risks in addition to the risks of investing in high yield securities that have not defaulted. The Fund generally will not receive interest payments on the defaulted bonds and there is a substantial risk that principal will not be repaid. In any reorganization or liquidation proceeding relating to a defaulted bond, the Fund may lose its entire investment.

Derivatives Risk —The use of derivatives involves additional risks and transaction costs which could leave the Fund in a worse position than if it had not used these instruments. Derivatives may entail investment exposures that are greater than their cost would suggest. As a result, a small investment in derivatives could have a large impact on performance. Recent legislation requires the development of a new regulatory framework for the derivatives market. The impact of the new regulations is still unknown, but has the potential to increase the costs of using derivatives, may limit the availability of some forms of derivatives or the Fund’s ability to use derivatives, and may adversely affect the performance of some derivative instruments used by the Fund as well as the Fund’s ability to pursue its investment objective through the use of such instruments.

High Yield Securities Risk —High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk —The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk —Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities.

Inverse Floaters Risk —The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

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Section 1     Fund Summary

Liquidity Risk —The secondary market for municipal bonds, and particularly for high-yield municipal bonds, tends to be less well developed and less liquid than many other securities markets. As a result, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. The Fund may invest a significant portion of its assets in unrated bonds. The market for these bonds may be less liquid than the market for rated bonds of comparable quality.

Market Risk —The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk —Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Political and Economic Risks —The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers.

Tax Risk —Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Zero Coupon Bonds Risk —Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Principal Risks

Alternative minimum tax risk: The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call risk: Many bonds may be redeemed at the option of the issuer, or “called,” before their stated maturity date. In general, an issuer will call its bonds if they can be refinanced by issuing new bonds which bear a lower interest rate. The Fund is subject to the possibility that during periods of falling interest rates, a bond issuer will call its high yielding bonds. The Fund would then be forced to invest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund’s income.

Credit risk: The Fund is subject to the risk that the issuers of debt securities held by the Fund will not make payments on the securities. There is also the risk that an issuer could suffer adverse changes in financial condition that could lower the credit quality of a security. This could lead to greater volatility in the price of the security and in shares of the Fund. Also, a change in the credit quality rating of a bond could affect the bond’s liquidity and make it more difficult for the Fund to sell. When the Fund purchases unrated securities, it will depend on the sub-adviser’s analysis of credit risk without the assessment of an independent rating organization, such as Moody’s or Standard & Poor’s. Credit risk may be increased by the Fund’s investments in inverse floaters because of the leveraged nature of these investments.

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Section 2     How We Manage Your Money

Defaulted b ond r isk: Defaulted bonds are speculative and involve substantial risks in addition to the risks of investing in high yield securities that have not defaulted. The Fund generally will not receive interest payments on the defaulted bonds and there is a substantial risk that principal will not be repaid. The Fund may incur additional expenses to the extent it is required to seek recovery upon a default in the payment of principal of or interest on its portfolio holdings. In any reorganization or liquidation proceeding relating to a defaulted bond, the Fund may lose its entire investment or may be required to accept cash or securities with a value less than its original investment. Defaulted bonds and any securities received in exchange for defaulted bonds may be subject to restrictions on resale.

Derivatives risk: The use of derivatives presents risks different from, and possibly greater than, the risks associated with investing directly in traditional securities. Among the risks presented are market risk, credit risk, management risk and liquidity risk. Derivatives can be highly volatile, illiquid and difficult to value, and there is the risk that changes in the value of a derivative held by the Fund will not correlate with the underlying instruments or the Fund’s other investments.

The use of derivatives can lead to losses because of adverse movements in the price or value of the underlying asset, index or rate, which may be magnified by certain features of the derivatives. Derivative instruments also involve the risk that a loss may be sustained as a result of the failure of the counterparty to the derivative instruments to make required payments or otherwise comply with the derivative instruments’ terms. These risks are heightened when the management team uses derivatives to enhance the Fund’s return or as a substitute for a position or security, rather than solely to hedge (or offset) the risk of a position or security held by the Fund.

In addition, when the Fund invests in certain derivative securities, including, but not limited to, futures contracts, it is effectively leveraging its investments, which could result in exaggerated changes in the net asset value of the Fund’s shares and can result in losses that exceed the amount originally invested. The success of the Fund’s derivatives strategies will depend on the sub-adviser’s ability to assess and predict the impact of market or economic developments on the underlying asset, index or rate and the derivative itself, without the benefit of observing the performance of the derivative under all possible market conditions. The Fund may also enter into over-the-counter (OTC) transactions in derivatives. Transactions in the OTC markets generally are conducted on a principal-to-principal basis. The terms and conditions of these instruments generally are not standardized and tend to be more specialized or complex, and the instruments may be harder to value. In general, there is less governmental regulation and supervision of transactions in the OTC markets than of transactions entered into on organized exchanges. In addition, certain derivative instruments and markets may not be liquid, which means the Fund may not be able to close out a derivatives transaction in a cost-efficient manner.

Short positions in derivatives may involve greater risks than long positions, as the risk of loss on short positions is theoretically unlimited (unlike a long position, in which the risk of loss may be limited to the amount invested).

Recent legislation requires the development of a new regulatory framework for the derivatives market. The impact of the new regulations is still unknown, but has the potential to increase the costs of using derivatives, may limit the availability of some forms of derivatives or the Fund’s ability to use derivatives, and may adversely affect the performance of some derivative

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instruments used by the Fund as well as the Fund’s ability to pursue its investment objectives through the use of such instruments.

High yield securities risk: The Fund invests in high yield securities, which involve more risk than investment grade securities. High yield securities may be more susceptible to real or perceived adverse economic conditions than investment grade securities, and they generally have more volatile prices and carry more risk to principal. In addition, liquidity risk is greater for high yield securities than for investment grade securities.

Income risk: The Fund’s income could decline due to falling market interest rates. This is because, in a falling interest rate environment, the Fund generally will have to invest the proceeds from sales of Fund shares, as well as the proceeds from maturing portfolio securities (or portfolio securities that have been called, see “Call risk” above), in lower-yielding securities. Also, if the Fund invests in inverse floaters, whose income payments vary inversely with changes in short-term market rates, the Fund’s income may decrease if short-term interest rates rise.

Interest rate risk: Debt securities in the Fund will fluctuate in value with changes in interest rates. In general, debt securities will increase in value when interest rates fall and decrease in value when interest rates rise. Longer-term debt securities are generally more sensitive to interest rate changes.

Inverse floaters risk: The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, the value of an inverse floater will increase and decrease to a significantly greater extent than the values of the TOB trust’s underlying municipal bonds in responses to changes in market interest rates or credit quality. An investment in inverse floaters typically will involve greater risk than an investment in a fixed rate municipal bond, including, in the case of recourse inverse floaters (discussed below), the risk that the Fund may lose more than its original principal investment.

Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. The greater the amount of floaters sold by a TOB trust relative to the inverse floaters (i.e., the greater the effective leverage of the inverse floaters), the more volatile the distributions on the inverse floaters will be. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

The Fund may invest in recourse inverse floaters. With such an investment, the Fund will be required to reimburse the liquidity provider of a TOB trust for any shortfall between the outstanding amount of any floaters and the value of the municipal bonds in the TOB trust in the event the floaters cannot be successfully remarketed, which could cause the Fund to lose money in excess of its investment.

A TOB trust may be terminated without the Fund’s consent upon the occurrence of certain events, such as the bankruptcy or default of the issuer of the securities in the trust. If that happens, the floaters will be redeemed at par (plus accrued interest) out of the proceeds from the sale of securities in the TOB trust, and the Fund will be entitled to the remaining proceeds, if any. Thus, if there is a decrease in the value of the securities held in the TOB trust, the Fund may lose some or all of the principal amount of its investment

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Section 2     How We Manage Your Money

in the inverse floaters. As noted above, in the case of recourse inverse floaters, the Fund could lose money in excess of its investment.

Liquidity risk: The secondary market for municipal bonds, and particularly for high-yield municipal bonds, tends to be less well developed and less liquid than many other securities markets. Liquidity can be reduced unpredictably in response to overall economic conditions or credit tightening. As a result of reduced liquidity, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. The Fund may invest a significant portion of its assets in unrated bonds. The market for these bonds may be less liquid than the market for rated bonds of comparable quality.

Market risk: The market values of the Fund’s investments may decline, at times sharply and unpredictably. Market values of debt securities are affected by a number of different factors, including changes in interest rates, the credit quality of bond issuers, and general economic and market conditions.

Municipal lease obligations risk: The Fund may purchase participation interests in municipal leases. These are undivided interests in a lease, installment purchase contract, or conditional sale contract entered into by a state or local government unit to acquire equipment or facilities. Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Although these kinds of obligations are secured by the leased equipment or facilities, it might be difficult and time consuming to dispose of the equipment or facilities in the event of non-appropriation, and the Fund might not recover the full principal amount of the obligation.

Political and economic risks : The values of municipal securities may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Other factors that could affect municipal securities include a change in the local, state, or national economy, demographic factors, ecological or environmental concerns, statutory limitations on the issuer’s ability to increase taxes, and other developments generally affecting the revenue of issuers (for example, legislation or court decisions reducing state aid to local governments or mandating additional services). This risk would be heightened to the extent that the Fund invests a substantial portion of the below-investment grade quality portion of its portfolio in the bonds of similar projects (such as those relating to the education, health care, housing, transportation, or utilities industries), in industrial development bonds, or in particular types of municipal securities (such as general obligation bonds, private activity bonds or moral obligation bonds) that are particularly exposed to specific types of adverse economic, business or political events.

Tax risk: Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant

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conduct of a bond issuer. On September 12, 2011, President Obama submitted to Congress the American Jobs Act of 2011 (the “ Jobs Act ” ). If enacted in its proposed form, the Jobs Act generally would limit the exclusion from gross income of tax-exempt interest (which includes exempt-interest dividends received from the Fund) for individuals whose adjusted gross income for federal income tax purposes exceeds certain thresholds. Such proposal could affect the value of the municipal bonds owned by the Fund. The likelihood of the Jobs Act being enacted in the form introduced or in some other form cannot be predicted. Shareholders should consult their own tax advisors regarding the potential consequences of the Jobs Act and other proposed or potential legislation on their investment in the Fund.

Zero coupon bonds risk: As interest on zero coupon bonds is not paid on a current basis, the values of the bonds are subject to greater fluctuations than are the value of bonds that distribute income regularly and may be more speculative than such bonds. Accordingly, the values of zero coupon bonds may be highly volatile as interest rates rise or fall. In addition, while zero coupon bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Other Risks

Borrowing risk: The Fund may borrow for temporary or emergency purposes, including to meet redemption requests, pay dividends, repurchase its shares, or clear portfolio transactions. Borrowing may exaggerate changes in the net asset value of the Fund’s shares and may affect the Fund’s net income. When the Fund borrows money, it must pay interest and other fees, which will reduce the Fund’s returns if such costs exceed the returns on the portfolio securities purchased or retained with such borrowings. Any such borrowings are intended to be temporary. However, under certain market conditions, including periods of low demand or decreased liquidity in the municipal bond market, such borrowings might be outstanding for longer periods of time.

Inflation risk: The value of assets or income from investments may be less in the future as inflation decreases the value of money. As inflation increases, the value of the Fund’s assets can decline, as can the value of the Fund’s distributions.

Small fund risk: The Fund currently has less assets than similar funds, and like other relatively small funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time, causing the Fund’s performance to vary from that of the Fund’s model portfolio. This impact may be positive or negative, depending on the direction of market movement during the period affected. The Fund has policies in place which seek to reduce the impact of these flows where Nuveen Fund Advisors has prior knowledge of them. If any individual shareholder (or several shareholders whose investment in the Fund is controlled by a single decision-maker such as an advisor) owns a large percentage of the Fund’s shares, and if such shareholder chooses to redeem his or her shares at one time, the Fund may have difficulty selling its assets in a timely manner to raise the cash necessary to meet the redemption request, in which case the Fund may have to borrow money to do so. In such an instance, the Fund’s remaining shareholders would bear the costs of such borrowings, and the Fund would be subject to leverage risk (to the extent such leverage exceeded the amount of portfolio sales awaiting settlement) as long as such borrowings were outstanding. Rapid portfolio sales in response to such a

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Section 2     How We Manage Your Money

large redemption might also cause the Fund to experience above-normal transaction costs, and might disrupt the overall composition of the Fund’s portfolio and thereby impede the adviser’s ability to optimally pursue its investment strategy.

When-issued, delayed-delivery and forward commitment transactions: These transactions involve an additional element of risk because, although the Fund will not have made any cash outlay prior to the settlement date, the value of the security to be purchased may decline before that settlement date.

The Fund offers multiple classes of shares, each with a different combination of sales charges, fees, eligibility requirements and other features. Your financial advisor can help you determine which class is best for you. For further details, please see the statement of additional information.

Class A Shares

You can purchase Class A shares at the offering price, which is the net asset value per share plus an up-front sales charge. You may qualify for a reduced sales charge, or the sales charge may be waived, as described in “How to Reduce Your Sales Charge.” Class A shares are also subject to an annual service fee of 0.20% of the Fund’s average daily net assets, which compensates your financial advisor or other financial intermediary for providing ongoing service to you. Nuveen Securities, LLC (the “ Distributor ”), a subsidiary of Nuveen Investments and the distributor of the Fund, retains the up-front sales charge and the service fee on accounts with no financial intermediary of record. The up-front Class A sales charges for the Fund are as follows:

Class C Shares

You can purchase Class C shares at the offering price, which is the net asset value per share without any up-front sales charge. Class C shares are subject to annual distribution and service fees of 0.75% of the Fund’s average daily net assets. The annual 0.20% service fee compensates your financial advisor or other financial intermediary for providing ongoing service to you. The annual 0.55% distribution fee compensates the Distributor for paying your financial advisor or other financial intermediary an ongoing sales commission. The Distributor compensates your financial advisor or other financial intermediary at the time of sale at a rate of 1% of the amount of Class C shares purchased, which includes an advance of the first year’s service and distribution fees. The Distributor retains the service and distribution fees on accounts with no financial intermediary of record. If you redeem your shares within 12 months of purchase, you will normally pay a 1% CDSC, which is calculated on the lower of your purchase price or redemption proceeds. You do not pay a CDSC on any Class C shares you purchase by reinvesting dividends.

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Section 3     How You Can Buy and Sell Shares

The Fund has established a limit to the amount of Class C shares that may be purchased by an individual investor. See the statement of additional information for more information.

Class I Shares

You can purchase Class I shares at the offering price, which is the net asset value per share without any up-front sales charge. As Class I shares are not subject to sales charges or ongoing service or distribution fees, they have lower ongoing expenses than the other classes.

Class I shares are available for purchase by clients of financial intermediaries who charge such clients an ongoing fee for advisory, investment, consulting or related services. Such clients may include individuals, corporations, endowments and foundations. The minimum initial investment for such clients is $100,000, but this minimum will be lowered to $250 for clients of financial intermediaries that have accounts holding Class I shares with an aggregate value of at least $100,000. The Distributor may also lower the minimum to $250 for clients of financial intermediaries anticipated to reach this Class I share holdings level.

Class I shares are also available for purchase by family offices and their clients. A family office is a company that provides certain financial and other services to a high net worth family or families. The minimum initial investment for family offices and their clients is $100,000, but this minimum will be lowered to $250 for clients of family offices that have accounts holding Class I shares with an aggregate value of at least $100,000. The Distributor may also lower the minimum to $250 for clients of family offices anticipated to reach this Class I share holdings level.

Class I shares are also available for purchase, with no minimum initial investment, by the following categories of investors:

Please refer to the statement of additional information for more information about Class A, Class C and Class I shares, including more detailed program descriptions and eligibility requirements. Additional information is also available from your financial advisor, who can also help you prepare any necessary application forms.

The Fund offers a number of ways to reduce or eliminate the up-front sales charge on Class A shares. See “What Share Classes We Offer” (above) for a discussion of eligibility requirements for purchasing Class I shares.

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Class A Sales Charge Reductions

For purposes of calculating the appropriate sales charge as described under Rights of Accumulation and Letter of Intent above, you may include purchases by (i) you, (ii) your spouse or domestic partner and children under the age of 21 years, and (iii) a corporation, partnership or sole proprietorship that is 100% owned by any of the persons in (i) or (ii). In addition, a trustee or other fiduciary can count all shares purchased for a single trust, estate or other single fiduciary account that has multiple accounts (including one or more employee benefit plans of the same employer).

Class A Sales Charge Waivers

Class A shares of the Fund may be purchased at net asset value without a sales charge as follows:

In order to obtain a sales charge reduction or waiver, it may be necessary at the time of purchase for you to inform the Fund or your financial advisor of the existence of other accounts in which there are holdings eligible to be aggregated for such purposes. You may need to provide the Fund or your financial advisor information or records, such as account statements, in order to verify your eligibility for a sales charge reduction or waiver. This may include account statements of family members and information regarding

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Section 3     How You Can Buy and Sell Shares

Nuveen Mutual Fund shares held in accounts with other financial advisors. You or your financial advisor must notify the Distributor at the time of each purchase if you are eligible for any of these programs. The Fund may modify or discontinue these programs at any time.

Fund shares may be purchased on any business day, which is any day the New York Stock Exchange (the “ NYSE ”) is open for business. Generally, the NYSE is closed on weekends and national holidays. The share price you pay depends on when the Distributor receives your order and on the share class you are purchasing. Orders received before the close of trading on a business day (normally, 4:00 p.m. New York time) will receive that day’s closing share price; otherwise, you will receive the next business day’s price.

You may purchase Fund shares (1) through a financial advisor or (2) directly from the Fund.

Through a Financial Advisor

You may buy shares through your financial advisor, who can handle all the details for you, including opening a new account. Financial advisors can also help you review your financial needs and formulate long-term investment goals and objectives. In addition, financial advisors generally can help you develop a customized financial plan, select investments and monitor and review your portfolio on an ongoing basis to help assure your investments continue to meet your needs as circumstances change. Financial advisors (including brokers or agents) are paid for providing ongoing investment advice and services, either from Fund sales charges and fees or by charging you a separate fee in lieu of a sales charge.

Financial advisors or other dealer firms may charge their customers a processing or service fee in connection with the purchase or redemption of Fund shares. The amount and applicability of such a fee is determined and disclosed to customers by each individual dealer. Processing or service fees typically are fixed, nominal dollar amounts and are in addition to the sales and other charges described in this prospectus and the statement of additional information. Your dealer will provide you with specific information about any processing or service fees you will be charged. Shares you purchase through your financial advisor or other intermediary will normally be held with that firm. For more information, please contact your financial advisor.

Directly from the Fund

Eligible investors may purchase shares directly from the Fund.

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The Fund does not consider the U.S. Postal Service or other independent delivery services to be its agents. Therefore, deposit in the mail or with such services, or receipt at the post office box above, of purchase orders or redemption requests does not constitute receipt by the transfer agent of the Fund.

To help make your investing with us easy and efficient, we offer you the following services at no extra cost. Your financial advisor can help you complete the forms for these services, or you can call Nuveen Investor Services at (800) 257-8787 for copies of the necessary forms.

Systematic Investing

Once you have opened an account satisfying the applicable investment minimum, systematic investing allows you to make regular additional investments through automatic deductions from your bank account, directly from your paycheck or from exchanging shares from another mutual fund account. The minimum automatic deduction is $100 per month. There is no charge to participate in the Fund’s systematic investment plan. You can stop the deductions at any time by notifying the Fund in writing.

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Section 3     How You Can Buy and Sell Shares

Systematic Withdrawal

If the value of your Fund account is at least $10,000, you may request to have $50 or more withdrawn automatically from your account. You may elect to receive payments monthly, quarterly, semi-annually or annually, and may choose to receive a check, have the monies transferred directly into your bank account (see “Fund Direct” below), paid to a third party or sent payable to you at an address other than your address of record. You must complete the appropriate section of the account application or Account Update Form to participate in the Fund’s systematic withdrawal plan.

You should not establish systematic withdrawals if you intend to make concurrent purchases of Class A or Class C shares because you may unnecessarily pay a sales charge or CDSC on these purchases.

Exchanging Shares

You may exchange Fund shares into an identically registered account for the same class of another Nuveen Mutual Fund available in your state. Your exchange must meet the minimum purchase requirements of the fund into which you are exchanging. You may also, under certain limited circumstances, exchange between certain classes of shares of the same fund, subject to the payment of any applicable CDSC. Please consult the statement of additional information for details.

The Fund reserves the right to revise or suspend the exchange privilege, limit the amount or number of exchanges, or reject any exchange. Shareholders will be provided with at least 60 days’ notice of any material revision to or termination of the exchange privilege.

Because an exchange between funds is treated for tax purposes as a purchase and sale, any gain may be subject to tax. An exchange between classes of shares of the same fund may not be considered a taxable event. You should consult your tax advisor about the tax consequences of exchanging your shares.

Fund Direct ^SM

The Fund Direct Program allows you to link your Fund account to your bank account, transfer money electronically between these accounts and perform a variety of account transactions, including purchasing shares by telephone and investing through a systematic investment plan. You may also have dividends, distributions, redemption payments or systematic withdrawal plan payments sent directly to your bank account.

Reinstatement Privilege

If you redeem Fund shares, you may reinvest all or part of your redemption proceeds up to one year later without incurring any additional charges. You may only reinvest into the same share class you redeemed. If you paid a CDSC, the Fund will refund your CDSC and reinstate your holding period for purposes of calculating the CDSC. You may use this reinstatement privilege only once for any redemption.

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You may sell (redeem) your shares on any business day. You will receive the share price next determined after the Fund has received your properly completed redemption request. Your redemption request must be received before the close of trading on the NYSE (normally, 4:00 p.m. New York time) for you to receive that day’s price. The Fund will normally mail your check the next business day after a redemption request is received, but in no event more than seven days after your request is received. If you are selling shares purchased recently with a check, your redemption proceeds will not be mailed until your check has cleared, which may take up to ten business days from your purchase date.

You may sell your shares (1) through a financial advisor or (2) directly to the Fund.

Through a Financial Advisor

You may sell your shares through your financial advisor, who can prepare the necessary documentation. Your financial advisor may charge for this service.

Directly to the Fund

After you have established your account, signatures on a written request must be guaranteed if:

Non-financial transactions, including establishing or modifying certain services such as changing bank information on an account, will require a signature guarantee or signature verification from a Medallion Signature Guarantee Program member or other acceptable form of authentication from a financial institution source. In addition to the situations described above, the Fund reserves the right to require a signature guarantee, or another acceptable form of signature verification, in other instances based on the circumstances of a particular situation.

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Section 3     How You Can Buy and Sell Shares

A signature guarantee assures that a signature is genuine and protects shareholders from unauthorized account transfers. Banks, savings and loan associations, trust companies, credit unions, broker-dealers and member firms of a national securities exchange may guarantee signatures. Call your financial intermediary to determine if it has this capability. A notary public is not an acceptable signature guarantor. Proceeds from a written redemption request will be sent to you by check unless another form of payment is requested.

Contingent Deferred Sales Charge

If you redeem Class A or Class C shares that are subject to a CDSC, you may be assessed a CDSC upon redemption. When you redeem Class A or Class C shares subject to a CDSC, the Fund will first redeem any shares that are not subject to a CDSC, and then redeem the shares you have owned for the longest period of time, unless you ask the Fund to redeem your shares in a different order. No CDSC is imposed on shares you buy through the reinvestment of dividends and capital gains. The CDSC holding period is calculated on a monthly basis and begins on the first day of the month in which the purchase was made. When you redeem shares subject to a CDSC, the CDSC is calculated on the lower of your purchase price or redemption proceeds, deducted from your redemption proceeds, and paid to the Distributor. The CDSC may be waived under certain special circumstances as described in the statement of additional information.

Accounts with Low Balances

The Fund reserves the right to liquidate or assess a low balance fee on any account held directly with the Fund that has a balance that has fallen below the account balance minimum of $1,000 for any reason, including market fluctuations.

An Important Note About Telephone Transactions

Although Nuveen Investor Services has certain safeguards and procedures to confirm the identity of callers, it will not be liable for losses resulting from following telephone instructions it reasonably believes to be genuine. Also, you should verify your trade confirmations immediately upon receipt.

Section 3     How You Can Buy and Sell Shares

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If the Fund elects to exercise the right to assess a low balance fee, then annually the Fund will assess a $15 low balance account fee on certain accounts with balances under the account balance minimum that are accounts established pursuant to the UTMA or UGMA. At the same time, other accounts with balances under the account balance minimum will be liquidated, with proceeds being mailed to the address of record. Prior to the assessment of any low balance fee or liquidation of low balance accounts, affected shareholders will receive a communication notifying them of the pending action, thereby providing time to ensure that balances are at or above the account balance minimum prior to any fee assessment or account liquidation. You will not be assessed a CDSC if your account is liquidated.

Redemptions In-Kind

The Fund generally pays redemption proceeds in cash. However, if the Fund determines that it would be detrimental to its remaining shareholders to make payment of a redemption order wholly in cash, the Fund may pay a portion of your redemption proceeds in securities or other Fund assets. Although it is unlikely that your shares would be redeemed in-kind, you would probably have to pay brokerage costs to sell the securities or other assets distributed to you, as well as taxes on any capital gains from that sale.

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Section 3     How You Can Buy and Sell Shares

Section 4     General Information

To help you understand the tax implications of investing in the Fund, this section includes important details about how the Fund makes distributions to shareholders. We discuss some other Fund policies as well. Please consult the statement of additional information and your tax advisor for more information about taxes.

The Fund declares dividends daily and pays such dividends monthly, usually on the first business day of the month. Your account will begin to accrue dividends on the business day after the day when the monies used to purchase your shares are collected by the transfer agent. The Fund seeks to pay monthly tax-exempt dividends at a level rate that reflects the past and projected net income of the Fund. To help maintain more stable monthly distributions, the distribution paid by the Fund for any particular monthly period may be more or less than the amount of net income actually earned by the Fund during such period, and any such under- (or over-) distribution of income is reflected in the Fund’s net asset value. This policy is designed to result in the distribution of substantially all of the Fund’s net income over time. The Fund declares and pays any taxable capital gains or other taxable distributions once a year at year end.

Payment and Reinvestment Options

The Fund automatically reinvests your dividends in additional Fund shares unless you request otherwise. You may request to have your dividends paid to you by check, sent via electronic funds transfer through Automated Clearing House network or reinvested in shares of another Nuveen Mutual Fund. For further information, contact your financial advisor or call Nuveen Investor Services at (800) 257-8787. If you request that your distributions be paid by check but those distributions cannot be delivered because of an incorrect mailing address, or if a distribution check remains uncashed for six months, the undelivered or uncashed distributions and all future distributions will be reinvested in Fund shares at the current net asset value.

Taxes and Tax Reporting

Because the Fund invests primarily in municipal bonds, the regular monthly dividends you receive will generally be exempt from regular federal income tax. All or a portion of these dividends, however, may be subject to state and local taxes or to the federal alternative minimum tax.

Generally the Fund does not seek to realize taxable income or capital gains. However, the Fund may realize and distribute taxable income or capital gains from time to time as a result of the Fund’s normal investment activities. The Fund’s distributions of these amounts are taxed as ordinary income or capital gains and are taxable whether received in cash or reinvested in additional shares. Dividends from the Fund’s long-term capital gains are taxable as capital gains, while dividends from short-term capital gains and net investment income are generally taxable as ordinary income. The Fund’s taxable dividends are not expected to qualify for a dividends received deduction if you are a corporate shareholder or for the lower tax rates on qualified dividend income.

Section 4     General Information

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Early in each year, you will receive a statement detailing the amount and nature of all dividends and capital gains that you were paid during the prior year. If you hold your investment at the firm where you purchased your Fund shares, you will receive the statement from that firm. If you hold your shares directly with the Fund, the Distributor will send you the statement. The tax status of your dividends is the same whether you reinvest your dividends or elect to receive them in cash.

If you receive social security or railroad retirement benefits, you should consult your tax advisor about how an investment in the Fund may affect the taxation of your benefits.

Each sale or exchange of Fund shares may be a taxable event. When you exchange shares of one Nuveen Mutual Fund for shares of a different Nuveen Mutual Fund, the exchange is treated the same as a sale for tax purposes. A sale may result in capital gain or loss to you. The gain or loss generally will be treated as short-term if you held the shares for 12 months or less and long-term if you held the shares for more than 12 months at the time of disposition.

Please note that if you do not furnish the Fund with your correct Social Security number or employer identification number, you fail to provide certain certifications to the Fund, you fail to certify whether you are a U.S. citizen or a U.S. resident alien, or the Internal Revenue Service notifies the Fund to withhold, federal law requires the Fund to withhold federal income tax from your distributions and redemption proceeds at the applicable withholding rate.

Buying or Selling Shares Close to a Record Date

Buying Fund shares shortly before the record date for a taxable income or capital gain distribution is commonly known as “buying the dividend.” The entire distribution may be taxable to you even though a portion of the distribution effectively represents a return of your purchase price.

Cost Basis Method

You may elect a cost basis method to apply to all existing and future accounts you may establish. The cost basis method you select will determine the order in which shares are redeemed and how your cost basis information is calculated and subsequently reported to you and to the Internal Revenue Service. Please consult your tax advisor to determine which cost basis method best suits your specific situation. If you hold your account directly with the Fund, please contact Nuveen Investor Services at (800) 257-8787 for instructions on how to make your election. If you hold your account with a financial intermediary, please contact that financial intermediary for instructions on how to make your election. If you hold your account directly with the Fund and do not elect a cost basis method, your account will default to the average cost basis method. For a definition of “average cost basis method,” please see the glossary. Financial intermediaries choose their own default method.

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Section 4     General Information

Taxable Equivalent Yields

The taxable equivalent yield is the current yield you would need to earn on a taxable investment in order to equal a stated federal tax-free yield on a municipal investment. To assist you in comparing municipal investments like the Fund with fully taxable alternative investments, the table below presents the taxable equivalent yields for a range of hypothetical federal tax-free yields and tax rates:

The yields and tax rates shown above are hypothetical and do not predict your actual returns or effective tax rate. For more detailed information, see the statement of additional information or consult your tax advisor.

The Distributor serves as the selling agent and distributor of the Fund’s shares. In this capacity, the Distributor manages the offering of the Fund’s shares and is responsible for all sales and promotional activities. In order to reimburse the Distributor for its costs in connection with these activities, including compensation paid to financial intermediaries, the Fund has adopted a distribution and service plan under Rule 12b-1 under the 1940 Act. See “How You Can Buy and Sell Shares—What Share Classes We Offer” for a description of the distribution and service fees paid under this plan.

Under the plan, the Distributor receives a distribution fee for Class C shares primarily for providing compensation to financial intermediaries, including the Distributor, in connection with the distribution of shares. The Distributor receives a service fee for Class A and Class C shares to compensate financial intermediaries, including the Distributor, for providing ongoing account services to shareholders. These services may include establishing and maintaining shareholder accounts, answering shareholder inquiries and providing other personal services to shareholders. These fees also compensate the Distributor for other expenses, including printing and distributing prospectuses to persons other than shareholders, and preparing, printing, and distributing advertising materials, sales literature and reports to shareholders used in connection with the sale of shares. Because these fees are paid out of the Fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. Long-term holders of Class C shares may pay more in distribution and service fees and CDSCs than the economic equivalent of the maximum front-end sales charge permitted under the Financial Industry Regulatory Authority Conduct Rules.

Other Payments to Financial Intermediaries

In addition to the sales commissions and certain payments from distribution and service fees to financial intermediaries as previously described, the Distributor may from time to time make additional payments, out of its own

Section 4     General Information

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resources, to certain financial intermediaries that sell shares of Nuveen Mutual Funds in order to promote the sales and retention of Fund shares by those firms and their customers. The amounts of these payments vary by financial intermediary and, with respect to a given firm, are typically calculated by reference to the amount of the firm’s recent gross sales of Nuveen Mutual Fund shares and/or total assets of Nuveen Mutual Funds held by the firm’s customers. The level of payments that the Distributor is willing to provide to a particular financial intermediary may be affected by, among other factors, the firm’s total assets held in and recent net investments into Nuveen Mutual Funds, the firm’s level of participation in Nuveen Mutual Fund sales and marketing programs, the firm’s compensation program for its registered representatives who sell Fund shares and provide services to Fund shareholders, and the asset class of the Nuveen Mutual Funds for which these payments are provided. For 2011, these payments in the aggregate were approximately 0.070% to 0.073% of the assets in the Nuveen Mutual Funds, although payments to particular financial intermediaries can be significantly higher. The statement of additional information contains additional information about these payments, including the names of the firms to which payments are made. The Distributor may also make payments to financial intermediaries in connection with sales meetings, due diligence meetings, prospecting seminars and other meetings at which the Distributor promotes its products and services.

In connection with the availability of Nuveen Mutual Funds within selected mutual fund no-transaction fee institutional platforms and fee-based wrap programs (together, “Platform Programs” ) at certain financial intermediaries, the Distributor also makes payments out of its own assets to those firms as compensation for certain recordkeeping, shareholder communications and other account administration services provided to Nuveen Mutual Fund shareholders who own their Fund shares in these Platform Programs. These payments are in addition to the service fee and any applicable omnibus sub-accounting fees paid to these firms with respect to these services by the Nuveen Mutual Funds out of Fund assets.

The amounts of payments to a financial intermediary could be significant, and may create an incentive for the intermediary or its representatives to recommend or offer shares of the Fund to you. The intermediary may elevate the prominence or profile of the Fund within the intermediary’s organization by, for example, placing the Fund on a list of preferred or recommended funds and/or granting the Distributor and/or its affiliates preferential or enhanced opportunities to promote the Fund in various ways within the intermediary’s organization.

The price you pay for your shares is based on the Fund’s net asset value per share, which is determined as of the close of trading (normally 4:00 p.m. New York time) on each day the NYSE is open for business. Net asset value is calculated for each class of the Fund by taking the value of the class’s total assets, including interest or dividends accrued but not yet collected, less all liabilities, and dividing by the total number of shares outstanding. The result, rounded to the nearest cent, is the net asset value per share. All valuations are subject to review by the Fund’s Board of Trustees or its designee; however, the Board of Trustees retains oversight responsibility for valuing the Fund’s portfolio securities.

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Section 4     General Information

In determining net asset value, portfolio instruments generally are valued using prices provided by independent pricing services or obtained from other sources, such as broker-dealer quotations, all as approved by the Board of Trustees. Exchange-traded instruments generally are valued at the last reported sales price or official closing price on an exchange, if available. Independent pricing services typically value non-exchange-traded instruments utilizing a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such instruments, cash flows, and transactions for comparable instruments. In pricing certain instruments, the pricing services may consider information about an instrument’s issuer or market activity provided by the Fund’s investment adviser or sub-adviser.

If a price cannot be obtained from a pricing service or other pre-approved source, or if Nuveen Fund Advisors deems such price to be unreliable, a portfolio instrument may be valued by the Fund at its fair value as determined in good faith by the Board of Trustees or its designee. As a general principle, the fair value of a portfolio instrument is the amount that an owner might reasonably expect to receive upon the instrument’s current sale. A range of factors and analysis may be considered when determining fair value, including relevant market data, interest rates, credit considerations and/or issuer-specific news. The Fund may rely on an independent fair valuation service in making any such fair value determinations. A security that is fair valued may be valued at a price higher or lower than actual market quotations, the last price determined by the pricing service, the last bid or ask price in the market or the value determined by other funds using their own fair valuation procedures.

The Fund is intended for long-term investment and should not be used for excessive trading. Excessive trading in the Fund’s shares can disrupt portfolio management, lead to higher operating costs, and cause other operating inefficiencies for the Fund. However, the Fund is also mindful that shareholders may have valid reasons for periodically purchasing and redeeming Fund shares.

Accordingly, the Fund has adopted a Frequent Trading Policy that seeks to balance the Fund’s need to prevent excessive trading in Fund shares while offering investors the flexibility in managing their financial affairs to make periodic purchases and redemptions of Fund shares.

The Fund’s Frequent Trading Policy generally limits an investor to two “round trip” trades in a 60-day period. A “round trip” is the purchase and subsequent redemption of Fund shares, including by exchange. Each side of a round trip may be comprised of either a single transaction or a series of closely-spaced transactions.

The Fund primarily receives share purchase and redemption orders through third-party financial intermediaries, some of whom rely on the use of omnibus accounts. An omnibus account typically includes multiple investors and provides the Fund only with a net purchase or redemption amount on any given day where multiple purchases, redemptions and exchanges of shares occur in the account. The identity of individual purchasers, redeemers and exchangers whose orders are aggregated in omnibus accounts, and the size of their orders, will generally not be known by the Fund. Despite the

Section 4     General Information

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Fund’s efforts to detect and prevent frequent trading, the Fund may be unable to identify frequent trading because the netting effect in omnibus accounts often makes it more difficult to identify frequent traders. The Distributor has entered into agreements with financial intermediaries that maintain omnibus accounts with the Fund’s transfer agent. Under the terms of these agreements, the financial intermediaries undertake to cooperate with the Distributor in monitoring purchase, exchange and redemption orders by their customers in order to detect and prevent frequent trading in the Fund through such accounts. Technical limitations in operational systems at such intermediaries or at the Distributor may also limit the Fund’s ability to detect and prevent frequent trading. In addition, the Fund may permit certain financial intermediaries, including broker-dealer and retirement plan administrators, among others, to enforce their own internal policies and procedures concerning frequent trading. Such policies may differ from the Fund’s Frequent Trading Policy and may be approved for use in instances where the Fund reasonably believes that the intermediary’s policies and procedures effectively discourage inappropriate trading activity. Shareholders holding their accounts with such intermediaries may wish to contact the intermediary for information regarding its frequent trading policy. Although the Fund does not knowingly permit frequent trading, it cannot guarantee that it will be able to identify and restrict all frequent trading activity.

The Fund reserves the right in its sole discretion to waive unintentional or minor violations (including transactions below certain dollar thresholds) if it determines that doing so would not harm the interests of Fund shareholders. In addition, certain categories of redemptions may be excluded from the application of the Frequent Trading Policy, as described in more detail in the statement of additional information. These include, among others, redemptions pursuant to systematic withdrawal plans, redemptions in connection with the total disability or death of the investor, involuntary redemptions by operation of law, redemptions in payment of account or plan fees, and certain redemptions by retirement plans, including redemptions in connection with qualifying loans or hardship withdrawals, termination of plan participation, return of excess contributions, and required minimum distributions. The Fund may also modify or suspend the Frequent Trading Policy without notice during periods of market stress or other unusual circumstances.

The Fund reserves the right to impose restrictions on purchases or exchanges that are more restrictive than those stated above if it determines, in its sole discretion, that a transaction or a series of transactions involves market timing or excessive trading that may be detrimental to Fund shareholders. The Fund also reserves the right to reject any purchase order, including exchange purchases, for any reason. For example, the Fund may refuse purchase orders if the Fund would be unable to invest the proceeds from the purchase order in accordance with the Fund’s investment policies and/or objectives, or if the Fund would be adversely affected by the size of the transaction, the frequency of trading in the account or various other factors. For more information about the Fund’s Frequent Trading Policy and its enforcement, see “Purchase and Redemption of Fund Shares—Frequent Trading Policy” in the statement of additional information.

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Section 4     General Information

The custodian of the assets of the Fund is State Street Bank & Trust Company, P.O. Box 5043, Boston, Massachusetts 02206-5043. The custodian also provides certain accounting services to the Fund. The Fund’s transfer, shareholder services and dividend paying agent, Boston Financial Data Services, Inc., P.O. Box 8530, Boston, Massachusetts 02266-8530, performs bookkeeping, data processing and administrative services for the maintenance of shareholder accounts.

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Section 5     Glossary of Investment Terms

Nuveen Mutual Funds

Nuveen offers a variety of mutual funds designed to help you reach your financial goals. The funds below are grouped by category.

Several additional sources of information are available to you, including the codes of ethics adopted by the Fund, Nuveen Investments, Nuveen Fund Advisors and Nuveen Asset Management. The statement of additional information, incorporated by reference into this prospectus, contains detailed information on the policies and operation of the Fund included in this prospectus. Additional information about the Fund’s investments is available in the annual and semi-annual reports to shareholders. In the Fund’s annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the Fund’s performance during its last fiscal year. The Fund’s most recent statement of additional information, annual and semi-annual reports and certain other information are available, free of charge, by calling Nuveen Investor Services at (800) 257-8787, on the Fund’s website at www.nuveen.com, or through your financial advisor. Shareholders may call the toll free number above with any inquiries.

You may also obtain this and other Fund information directly from the Securities and Exchange Commission ( “SEC” ). Reports and other information about the Fund are available on the EDGAR Database on the SEC’s website at http://www.sec.gov or in person at the SEC’s Public Reference Room in Washington, D.C. Call the SEC at (202) 551-8090 for room hours and operation. You may also request Fund information by sending an e-mail request to publicinfo@sec.gov or by writing to the SEC’s Public Reference Section at 100 F Street, NE, Washington, D.C. 20549-1520. The SEC may charge a copying fee for this information.

The Fund is a series of Nuveen Municipal Trust, whose Investment Company Act file number is 811-07873.

[                    ]

The information in this Statement of Additional Information is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This Statement of Additional Information is not an offer to sell these securities and is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED NOVEMBER 16, 2012

                    , 2012

Nuveen Short Duration High Yield Municipal Bond Fund

Ticker Symbols: Class A—, Class C—, Class I—

STATEMENT OF ADDITIONAL INFORMATION

This Statement of Additional Information (“ SAI ”) is not a prospectus. This SAI relates to, and should be read in conjunction with, the Prospectus dated                 , 2012 for Nuveen Short Duration High Yield Municipal Bond Fund (the “ Fund ”), a series of Nuveen Municipal Trust (the “ Trust ”). A Prospectus may be obtained without charge from certain securities representatives, banks and other financial institutions that have entered into sales agreements with Nuveen Securities, LLC (the “ Distributor ”), or from the Fund, by written request to Nuveen Short Duration High Yield Municipal Bond Fund, c/o Nuveen Investor Services, P.O. Box 8530, Boston, Massachusetts 02266-8530, or by calling (800) 257-8787.

The audited financial statements for the Fund’s first fiscal period will appear in the Fund’s Annual Report dated April 30, 2013, which will be incorporated by reference and will be available without charge by calling (800) 257-8787.

TABLE OF CONTENTS

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GENERAL INFORMATION

The Fund is a diversified series of the Trust, an open-end management investment company organized as a Massachusetts business trust on July 1, 1996. Each series of the Trust represents shares of beneficial interest in a separate portfolio of securities and other assets, with its own objective and policies. Currently, six series of the Trust are authorized and outstanding.

The Fund’s investment adviser is Nuveen Fund Advisors, Inc. (“ Nuveen Fund Advisors ” or the “ Adviser ”). The Fund’s sub-adviser is Nuveen Asset Management, LLC (“ Nuveen Asset Management ” or the “ Sub-Adviser ”).

Certain matters under the Investment Company Act of 1940, as amended (the “ 1940 Act ”), which must be submitted to a vote of the holders of the outstanding voting securities of a series, shall not be deemed to have been effectively acted upon unless approved by the holders of a majority of the outstanding voting shares of each series affected by such matter.

INVESTMENT RESTRICTIONS

In addition to the investment objectives and policies set forth in the Prospectuses and under “Investment Policies and Techniques” below, the Fund is subject to the investment restrictions set forth below.

The investment objective and certain fundamental investment policies of the Fund are described in the Prospectus. The Fund, as a fundamental policy, may not, without the approval of the holders of a majority of the shares of the Fund’s outstanding shares:

(1) With respect to 75% of its total assets, purchase securities of an issuer (other than (i) securities issued by other investment companies, (ii) securities issued by the U.S. Government, its agencies, instrumentalities or authorities, or (iii) repurchase agreements fully collateralized by U.S. Government securities) if (a) such purchase would, at the time, cause more than 5% of the Fund’s total assets taken at market value to be invested in the securities of such issuer; or (b) such purchase would, at the time, result in more than 10% of the outstanding voting securities of such issuer being held by the Fund.

(2) Borrow money, except as permitted under the 1940 Act, as interpreted or modified from time to time by any regulatory authority having jurisdiction.

(3) Issue senior securities, except as permitted under the 1940 Act, as interpreted or modified from time to time by any regulatory authority having jurisdiction.

(4) Underwrite any issue of securities, except to the extent that the purchase or sale of securities in accordance with its investment objective, policies and limitations may be deemed to be an underwriting.

(5) Purchase or sell real estate, but this shall not prevent the Fund from investing in securities or other instruments backed by real estate or interests therein or foreclosing upon and selling such a security or instrument.

(6) Purchase or sell physical commodities or contracts relating to physical commodities.

(7) Make loans, except as permitted under the 1940 Act, as interpreted or modified from time to time by any regulatory authority having jurisdiction.

(8) Concentrate its investments in a particular industry. For purposes of this limitation, the U.S. Government, and state or municipal governments and their political subdivisions are not considered members of any industry. Whether a Fund is concentrating in an industry shall be determined in accordance with the 1940 Act, as interpreted or modified from time to time by any regulatory authority having jurisdiction.

For the purpose of applying the limitations set forth in paragraphs (1) and (8) above, an issuer shall be deemed the sole issuer of a security when its assets and revenues are separate from other governmental entities and its securities are backed only by its assets and revenues. Similarly, in the case of a non-governmental user, such as an industrial corporation or a privately owned or operated

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hospital, if the security is backed only by the assets and revenues of the non-governmental user, then such non-governmental user would be deemed to be the sole issuer. Where a security is also backed by the enforceable obligation of a superior or unrelated governmental entity or other entity (other than a bond insurer), it shall also be included in the computation of securities owned that are issued by such governmental or other entity.

For purposes of applying the limitations set forth in numbers 2 and 3 above, under the 1940 Act as currently in effect, the Fund is not permitted to issue senior securities, except that the Fund may borrow from any bank if immediately after such borrowing the value of the Fund’s total assets is at least 300% of the principal amount of all of the Fund’s borrowings (i.e., the principal amount of the borrowings may not exceed 33  ¹ / ₃ % of the Fund’s total assets). In the event that such asset coverage shall at any time fall below 300% the Fund shall, within three days thereafter (not including Sundays and holidays) reduce the amount of its borrowings to an extent that the asset coverage of such borrowing shall be at least 300%.

For purposes of applying the limitation set forth in number 7 above, there are no limitations with respect to unsecured loans made by the Fund to an unaffiliated party. However, when the Fund loans its portfolio securities, the obligation on the part of the Fund to return collateral upon termination of the loan could be deemed to involve the issuance of a senior security within the meaning of Section 18(f) of the 1940 Act. In order to avoid violation of Section 18(f), the Fund may not make a loan of portfolio securities if, as a result, more than one-third of its total asset value (at market value computed at the time of making a loan) would be on loan.

Where a security is guaranteed by a governmental entity or some other facility, such as a bank guarantee or letter of credit, such a guarantee or letter of credit would be considered a separate security and would be treated as an issue of such government, other entity or bank.

Except with respect to paragraph (2) above, the foregoing restrictions and limitations, as well as the Fund’s policies as to ratings of portfolio investments, will apply only at the time of purchase of securities, and the percentage limitations will not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of an acquisition of securities, unless otherwise indicated.

The foregoing fundamental investment policies, together with the investment objective of the Fund, cannot be changed without approval by holders of a “majority of the Fund’s outstanding voting shares.” As defined in the 1940 Act, this means the vote of (i) 67% or more of the Fund’s shares present at a meeting, if the holders of more than 50% of the Fund’s shares are present or represented by proxy, or (ii) more than 50% of the Fund’s shares, whichever is less.

In addition to the foregoing fundamental investment policies, the Fund is also subject to the following non-fundamental restrictions and policies, which may be changed by the Board of Trustees. The Fund may not:

(1) Invest more than 15% of its net assets in “illiquid” securities, including repurchase agreements maturing in more than seven days. The term “illiquid securities” will have the same meaning as it does under the 1940 Act.

(2) Purchase securities when borrowings exceed 5% of its total assets. If due to market fluctuations or other reasons, the value of the Fund’s assets falls below 300% of its borrowings, the Fund will reduce its borrowings within 3 business days.

Under normal market conditions, the Fund invests at least 80% of its net assets in municipal bonds that pay interest that is exempt from regular federal personal income tax. A policy has been adopted by the Fund to provide shareholders with at least 60 days’ notice in the event of a planned change to this investment strategy. Such notice to shareholders will meet the requirements of Rule 35d-1(c) of the 1940 Act.

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