The Nuveen Arizona Quality Municipal Income Fund operates as a closed-end mutual fund, specializing in fixed-income investments, initially established by Nuveen Investments, Inc. Management oversight for the fund is provided by Nuveen Asset Management, LLC. Its primary objective is to allocate capital within Arizona's fixed-income markets. The portfolio is strategically constructed from municipal securities and other comparable instruments, specifically those offering income exempt from both regular federal and Arizona state income taxes. These investments must also maintain a minimum credit rating of Baa or BBB and target an approximate average maturity of 18.66 years. To curate its holdings, the fund employs a blend of fundamental analysis and a bottom-up selection process. Performance is measured against industry benchmarks, including the Standard & Poor's (S&P) Arizona Municipal Bond Index and the S&P National Municipal Bond Index. Previously, it operated under the name Nuveen Arizona Premium Income Municipal Fund. This U.S.-domiciled fund was officially formed on November 19, 1992.