Subpart B - PRIMARY ALUMINUM SMELTING SUBCATEGORY

Section 421.20 - Applicability: description of the primary aluminum smelting subcategory
Section 421.21 - Specialized definitions
Section 421.22 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
Section 421.23 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
Section 421.24 - Standards of performance for new sources
Section 421.25 - Reserved
Section 421.26 - Pretreatment standards for new sources
Section 421.27 - Reserved