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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 419
Subpart C - Subpart C—Petrochemical Subcategory
§ 419.30 - Applicability; description of the petrochemical subcategory.
§ 419.31 - Specialized definitions.
§ 419.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 419.33 -
§ 419.34 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
§ 419.35 - Pretreatment standards for existing sources (PSES).
§ 419.36 - Standards of performance for new sources (NSPS).
§ 419.37 - Pretreatment standards for new sources (PSNS).
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