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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 13, 2022
All Titles
Title 40
Chapter I
Part 439
Subpart B - Extraction Products
§ 439.20 - Applicability.
§ 439.21 - Special definitions.
§ 439.22 - Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
§ 439.23 - Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT).
§ 439.24 - Effluent limitations attainable by the application of best available technology economically achievable (BAT).
§ 439.25 - New source performance standards (NSPS).
§ 439.26 - Pretreatment standards for existing sources (PSES).
§ 439.27 - Pretreatment standards for new sources (PSNS).
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