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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 01, 2023
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Title 40
Chapter I
Part 421
Subpart A - Subpart A—Bauxite Refining Subcategory
§ 421.10 - Applicability; description of the bauxite refining subcategory.
§ 421.11 - Specialized definitions.
§ 421.12 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 421.13 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 421.14 - [Reserved]
§ 421.15 - Standards of performance for new sources.
§ 421.16 - Pretreatment standards for new sources.
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