The Industrial Process Cooling Towers Maximum Achievable Control Technology standard as specified in 40 Code of Federal Regulations Part 63, Subpart Q, is incorporated by reference as amended through November 19, 2020 (85 FR 73854).
30 Tex. Admin. Code § 113.220
The provisions of this §113.220 adopted to be effective July 16, 1997, 22 TexReg 6451; amended to be effective October 29, 1998, 23 TexReg 10870; amended to be effective August 8, 1999, 24 TexReg 5873; amended to be effective June 15, 2005, 30 TexReg 3410; amended to be effective December 27, 2007, 32 TexReg 9698; Amended by Texas Register, Volume 47, Number 52, December 30, 2022, TexReg 9007, eff. 1/5/2023