CFR > Title 40 > Chapter I > Subchapter N > Part 451 > Subpart A CFR > Title 40 > Chapter I > Subchapter N > Part 451 > Subpart A – Flow-Through and Recirculating Systems Subcategory Current as of: 2024 | Check for updates | Other versions § 451.10 Applicability § 451.11 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT) § 451.12 Effluent limitations attainable by the application of the best available technology economically achievable (BAT) § 451.13 Effluent limitations attainable by the application of the best conventional technology (BCT) § 451.14 New source performance standards (NSPS)
