Strategy. The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in municipal securities whose income is exempt from federal income taxes. Any derivatives that provide exposure to the investment focus suggested by the funds name, or to one or more market risk factors associated with the investment focus suggested by the funds name, are counted (as applicable) toward compliance with the funds 80% investment policy. The fund generally seeks higher-yielding municipal securities, including those that are rated below investment grade (BB and lower, or an equivalent rating) by a credit rating agency or, if unrated, deemed by the adviser to be below investment-grade. Such holdings are commonly referred to as junk bonds. The … Show more… The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in municipal securities whose income is exempt from federal income taxes. Any derivatives that provide exposure to the investment focus suggested by the funds name, or to one or more market risk factors associated with the investment focus suggested by the funds name, are counted (as applicable) toward compliance with the funds 80% investment policy. The fund generally seeks higher-yielding municipal securities, including those that are rated below investment grade (BB and lower, or an equivalent rating) by a credit rating agency or, if unrated, deemed by the adviser to be below investment-grade. Such holdings are commonly referred to as junk bonds. The fund focuses its investments on securities that produce income that is exempt from regular federal income taxes. However, a significant portion of the funds income could be derived from securities subject to the alternative minimum tax. The fund invests in various tax-exempt municipal securities, such as general obligation bonds and revenue bonds (including private activity bonds). The fund may also invest in the securities of issuers whose revenues are generated from similar types of projects or operate in similar business sectors with special risks, including healthcare, transportation, utilities, or private activity bonds. The fund may have significant exposure to specific states when the advisers analysis identifies favorable market developments or trends, attractive relative values, or compelling fundamentals relating to a certain state that the adviser believes are underappreciated by the market. These factors will inform overall allocation decisions for the fund and seek to enhance the funds risk-return profile. T. Rowe Prices active investment management approach emphasizes the value of in-depth fundamental credit research, diversification, and risk management practices. By using fundamental research, T. Rowe Price seeks to select investments for the funds portfolio based on its outlook for the different sectors of the tax-free municipal market (for example, T. Rowe Price may emphasize revenue bonds instead of state and local general obligation debt) and specific issuers or securities. The goal of this approach is to seek higher yields while taking a risk-conscious approach. Risk management practices include managing the funds duration (which is a measurement of the price sensitivity of a bond or bond fund to changes in interest rates), while also focusing on striking a balance between (i) investing more heavily in certain sectors or issuers and (ii) diversifying the funds investments across the broader municipal market. Show less