BOSTON, July 31 /PRNewswire-FirstCall/ -- Eaton Vance Management, the Boston-based investment adviser, today announced the monthly distribution declared on the common shares of one of its closed-end municipal bond funds ("Funds"). The record date for the distribution is August 24, 2009, and the payable date is August 31, 2009. The ex-date is August 20, 2009. The distribution per share, closing market price on July 30, 2009 (or last trade price), and annualized market yield for the Fund is as follows: Closing Distribution Market Annualized Fund Per Share Price Yield Eaton Vance National Municipal Opportunities Trust (NYSE:EOT) $0.103334 $18.60 6.67% The amount of monthly distributions may vary depending on a number of factors. As portfolio and market conditions change, the rate of distributions on the Fund's common shares could change. The Fund is managed by Eaton Vance Management, a subsidiary of Eaton Vance Corp. (NYSE:EV), based in Boston, one of the oldest investment management firms in the United States, with a history dating back to 1924. Eaton Vance and its affiliates managed $136.3 billion in assets as of June 30, 2009 offering individuals and institutions a broad array of financial products and wealth solutions including mutual funds, managed accounts, variable trusts and charitable giving services. A combination of tradition, proven long-term performance and more than 80 years of experience have made Eaton Vance the investment manager of choice for many investors. For more information about Eaton Vance, visit http://www.eatonvance.com/. DATASOURCE: Eaton Vance Management CONTACT: Investor Contact of Eaton Vance Management, +1-800-262-1122 Web Site: http://www.eatonvance.com/

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