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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
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Title 40
Chapter I
Part 417
Subpart I - Subpart I—Oleum Sulfonation and Sulfation Subcategory
§ 417.90 - Applicability; description of the oleum sulfonation and sulfation subcategory.
§ 417.91 - Specialized definitions.
§ 417.92 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 417.93 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 417.94 - Pretreatment standards for existing sources.
§ 417.95 - Standards of performance for new sources.
§ 417.96 - Pretreatment standards for new sources.
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