Except to the extent that they are less stringent than the Texas Water Code or the rules of the commission, 40 Code of Federal Regulations (CFR), Subchapter N, Parts 400 - 471, except 40 CFR Part 403, which are in effect as of the date of the Texas Pollutant Discharge Elimination System program authorization, as amended, and Parts 437 (Federal Register, Volume 65, December 22, 2000), 442 (Federal Register, Volume 65, August 14, 2000), 444 (Federal Register, Volume 65, January 27, 2000), 445 (Federal Register, Volume 65, January 19, 2000), 449 (Federal Register, Volume 77, May 16, 2012), and 450 (Federal Register, Volume 74, December 1, 2009), as amended, are adopted by reference.

Source Note:The provisions of this §305.541 adopted to be effective October 8, 1990, 15 TexReg 5492; amended to be effective August 15, 2002, 27 TexReg 7163; amended to be effective November 25, 2010, 35 TexReg 10233; amended to be effective July 10, 2014, 39 TexReg 5188.