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40 CFR 420.106 · Pretreatment standards for new sources (PSNS).
40 CFR 420.107 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).
40 CFR 420.110 · Applicability; description of the alkaline cleaning subcategory.
40 CFR 420.111 · Specialized definitions.
40 CFR 420.112 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
40 CFR 420.113 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
40 CFR 420.114 · New source performance standards (NSPS).
40 CFR 420.115 · Pretreatment standards for existing sources (PSES).
40 CFR 420.116 · Pretreatment standards for new sources (PSNS).
40 CFR 420.117 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).
40 CFR 420.120 · Applicability; description of the hot coating subcategory.
40 CFR 420.121 · Specialized definitions.
40 CFR 420.122 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
40 CFR 420.123 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
40 CFR 420.124 · New source performance standards (NSPS).
40 CFR 420.125 · Pretreatment standards for existing sources (PSES).
40 CFR 420.126 · Pretreatment standards for new sources (PSNS).
40 CFR 420.127 · Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).
40 CFR 420.130 · Applicability.
40 CFR 420.131 · Specialized definitions.
40 CFR 420.132 · Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
40 CFR 420.133 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
40 CFR 420.134 · New source performance standards (NSPS).
40 CFR 420.135 · Pretreatment standards for existing sources (PSES).
40 CFR 420.136 · Pretreatment standards for new sources (PSNS).
40 CFR 420.137 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best control technology for conventional pollutants (BCT).
40 CFR 421.1 · Applicability.
40 CFR 421.2 · [Reserved]
40 CFR 421.3 · Monitoring and reporting requirements.
40 CFR 421.4 · Compliance date for pretreatment standards for existing sources (PSES).
40 CFR 421.5 · Removal allowances for pretreatment standards.
40 CFR 421.10 · Applicability; description of the bauxite refining subcategory.
40 CFR 421.11 · Specialized definitions.
40 CFR 421.12 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.13 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.14 · [Reserved]
40 CFR 421.15 · Standards of performance for new sources.
40 CFR 421.16 · Pretreatment standards for new sources.
40 CFR 421.20 · Applicability: description of the primary aluminum smelting subcategory.
40 CFR 421.21 · Specialized definitions.
40 CFR 421.22 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.23 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.24 · Standards of performance for new sources.
40 CFR 421.25 · [Reserved]
40 CFR 421.26 · Pretreatment standards for new sources.
40 CFR 421.27 · [Reserved]
40 CFR 421.30 · Applicability: Description of the secondary aluminum smelting subcategory.
40 CFR 421.31 · Specialized definitions.
40 CFR 421.32 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.33 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.34 · Standards of performance for new sources.
40 CFR 421.35 · Pretreatment standards for existing sources.
40 CFR 421.36 · Pretreatment standards for new sources.
40 CFR 421.37 · [Reserved]
40 CFR 421.40 · Applicability: Description of the primary copper smelting subcategory.
40 CFR 421.41 · Specialized definitions.
40 CFR 421.42 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.43 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.44 · Standards of performance for new sources.
40 CFR 421.45 · [Reserved]
40 CFR 421.46 · Pretreatment standards for new sources.
40 CFR 421.47 · [Reserved]
40 CFR 421.50 · Applicability: Description of the primary electrolytic copper refining subcategory.
40 CFR 421.51 · Specialized definitions.
40 CFR 421.52 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.53 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.54 · Standards of performance for new sources.
40 CFR 421.55 · [Reserved]
40 CFR 421.56 · Pretreatment standards for new sources.
40 CFR 421.57 · [Reserved]
40 CFR 421.60 · Applicability: Description of the secondary copper subcategory.
40 CFR 421.61 · Specialized definitions.
40 CFR 421.62 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.63 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.64 · Standards of performance for new sources.
40 CFR 421.65 · Pretreatment standards for existing sources.
40 CFR 421.66 · Pretreatment standards for new sources.
40 CFR 421.67 · [Reserved]
40 CFR 421.70 · Applicability: Description of the primary lead subcategory.
40 CFR 421.71 · Specialized definitions.
40 CFR 421.72 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.73 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.74 · Standards of performance for new sources.
40 CFR 421.75 · Pretreatment standards for existing sources.
40 CFR 421.76 · Pretreatment standards for new sources.
40 CFR 421.77 · [Reserved]
40 CFR 421.80 · Applicability: Description of the primary zinc subcategory.
40 CFR 421.81 · Specialized definitions.
40 CFR 421.82 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.83 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.84 · Standards of performance for new sources.
40 CFR 421.85 · Pretreatment standards for existing sources.
40 CFR 421.86 · Pretreatment standards for new sources.
40 CFR 421.87 · [Reserved]
40 CFR 421.90 · Applicability: Description of the metallurgical acid plants subcategory.
40 CFR 421.91 · Specialized definitions.
40 CFR 421.92 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.93 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.94 · Standards of performance for new sources.
40 CFR 421.95 · Pretreatment standards for existing sources.