 BlackRock Advisors, LLC BlackRock announced today an investment policy update for BlackRock Muni Intermediate Duration Fund, Inc. the Fund NYSE: MUI, CUSIP: 09253X102. The Funds Board of Directors has approved the elimination of the Funds non-fundamental policy to invest at least 80 of its assets in municipal bonds with a duration of three to ten years at the time of investment. The Fund expects to maintain a dollar-weighted average portfolio duration, as calculated by the investment adviser, of three to ten years, under its current investment policies. 