BlackRock MuniYield California Quality Fund, Inc. is a closed ended fixed income mutual fund launched by BlackRock, Inc. It is managed by BlackRock Advisors, LLC. The fund invests in fixed income markets. It invests in a portfolio of long-term investment-grade municipal obligations, the interest on which is exempt from Federal and California income taxes. The fund was formerly known as Blackrock MuniYield California Insured Fund, Inc. BlackRock MuniYield California Quality Fund, Inc. was formed on October 30, 1992 and is domiciled in United States.