40 CFR Subpart B
Primary Aluminum Smelting Subcategory
June 9, 2020
§
421.20
Applicability: description of the primary aluminum smelting subcategory
§
421.21
Specialized definitions
§
421.22
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
§
421.23
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
§
421.24
Standards of performance for new sources
§
421.25
[Reserved]
§
421.26
Pretreatment standards for new sources
§
421.27
[Reserved]
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