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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 12, 2022
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Title 40
Chapter I
Part 450
Subpart B - Construction and Development Effluent Guidelines
§ 450.21 - Effluent limitations reflecting the best practicable technology currently available (BPT).
§ 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).
§ 450.23 - Effluent limitations reflecting the best conventional pollutant control technology (BCT).
§ 450.24 - New source performance standards reflecting the best available demonstrated control technology (NSPS).
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