Except to the extent that they are less stringent than the Texas Water Code or the rules of the commission, the following federal regulations are adopted by reference, as amended:(1) 40 Code of Federal Regulations (CFR) Part 125, Subpart A, relating to imposing technology-based treatment requirements, as in effect on the date of Texas Pollutant Discharge Elimination System (TPDES) program authorization;(2) 40 CFR Part 125, Subpart B, relating to issuance of permits to aquaculture projects, as in effect on the date of TPDES program authorization;(3) 40 CFR Part 125, Subpart D, relating to determining fundamentally different factors (Federal Register, Volume 65, May 15, 2000);(4) 40 CFR Part 125, Subpart G, relating to modifying the secondary treatment requirements, as in effect on the date of TPDES program authorization;(5) 40 CFR Part 125, Subpart H, relating to determining alternative effluent limitations (Federal Register, Volume 65, May 15, 2000);(6) 40 CFR Part 125, Subpart I, relating to cooling water intake structures for new facilities (Federal Register, Volume 79, August 15, 2014);(7) 40 CFR Part 125, Subpart J, relating to relating to cooling water intake structures for existing facilities (Federal Register, Volume 79, August 15, 2014);(8) 40 CFR Part 125, Subpart M, relating to ocean discharges, as in effect on the date of TPDES program authorization; and(9) 40 CFR Part 125, Subpart N, relating to cooling water intake structures for new offshore oil and gas extraction facilities (Federal Register, Volume 71, June 16, 2006).