The Phosphoric Acid Manufacturing Plants Maximum Achievable Control Technology standard as specified in 40 Code of Federal Regulations Part 63, Subpart AA, is incorporated by reference as amended through November 19, 2020 (85 FR 73854).

Source Note: The provisions of this §113.320 adopted to be effective July 9, 2000, 25 TexReg 6329; amended to be effective July 9, 2003, 28 TexReg 5186; amended to be effective June 15, 2005, 30 TexReg 3410; amended to be effective December 27, 2007, 32 TexReg 9698; amended to be effective December 29, 2016, 41 TexReg 10352; amended to be effective January 5, 2023, 47 TexReg 9007