BlackRock Municipal Income Quality Trust is a closed-ended fixed income mutual fund launched by BlackRock, Inc. It is managed by BlackRock Advisors, LLC. The fund invests in the fixed income markets of the United States. It primarily invests in investment grade municipal bonds exempt from federal income taxes, including the alternative minimum tax. BlackRock Municipal Income Quality Trust was formed on October 31, 2002 and is domiciled in the United States.