40 CFR § 412.45
Effluent limitations attainable by the application of the best available technology economically achievable (BAT)
June 9, 2020
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BAT:
(a) For CAFO production areas: the CAFO shall attain the same limitations and requirements as §412.43(a).
(b) For CAFO land application areas: the CAFO shall attain the same limitations and requirements as §412.43(b).