AB Tax-Aware Long Municipal ETF (TAFL) is an exchange-traded fund in the Muni National Long category. It has $59.45M in assets, an expense ratio of 0.28% and a 4.06% dividend yield. The fund pursues its objective by investing principally in a national portfolio of both municipal and taxable fixed-income securities. It invests, under normal circumstances, at least 80% of its net assets, including any borrowings for investment purposes, in municipal securities that pay interest that is exempt from federal income tax.