Browse Federal regulations

Read the original sections, or search by topic.

40 CFR 421.96 · Pretreatment standards for new sources.
40 CFR 421.97 · [Reserved]
40 CFR 421.100 · Applicability: Description of the primary tungsten subcategory.
40 CFR 421.101 · Specialized definitions.
40 CFR 421.102 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.103 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.104 · Standards of performance for new sources.
40 CFR 421.105 · Pretreatment standards for existing sources.
40 CFR 421.106 · Pretreatment standards for new sources.
40 CFR 421.107 · [Reserved]
40 CFR 421.110 · Applicability: Description of the primary columbium-tantalum subcategory.
40 CFR 421.111 · Specialized definitions.
40 CFR 421.112 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.113 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.114 · Standards of performance for new sources.
40 CFR 421.115 · Pretreatment standards for existing sources.
40 CFR 421.116 · Pretreatment standards for new sources.
40 CFR 421.117 · [Reserved]
40 CFR 421.120 · Applicability: Description of the secondary silver subcategory.
40 CFR 421.121 · Specialized definitions.
40 CFR 421.122 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.123 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.124 · Standards of performance for new sources.
40 CFR 421.125 · Pretreatment standards for existing sources.
40 CFR 421.126 · Pretreatment standards for new sources.
40 CFR 421.127 · [Reserved]
40 CFR 421.130 · Applicability: Description of the secondary lead subcategory.
40 CFR 421.131 · Specialized definitions.
40 CFR 421.132 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.133 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.134 · Standards of performance for new sources.
40 CFR 421.135 · Pretreatment standards for existing sources.
40 CFR 421.136 · Pretreatment standards for new sources.
40 CFR 421.137 · [Reserved]
40 CFR 421.140 · Applicability: Description of the primary antimony subcategory.
40 CFR 421.141 · Specialized definitions.
40 CFR 421.142 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.143 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.144 · Standards of performance for new sources.
40 CFR 421.145 · [Reserved]
40 CFR 421.146 · Pretreatment standards for new sources.
40 CFR 421.147 · [Reserved]
40 CFR 421.150 · Applicability: Description of the primary beryllium subcategory.
40 CFR 421.151 · Specialized definitions.
40 CFR 421.152 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.153 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.154 · Standards of performance for new sources.
40 CFR 421.155 · [Reserved]
40 CFR 421.156 · Pretreatment standards for new sources.
40 CFR 421.157 · [Reserved]
40 CFR 421.180 · Applicability: Description of the primary and secondary germanium and gallium subcategory.
40 CFR 421.181 · Specialized definitions.
40 CFR 421.182 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.183 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.184 · Standards of performance for new sources.
40 CFR 421.185 · Pretreatment standards for existing sources.
40 CFR 421.186 · Pretreatment standards for new sources.
40 CFR 421.187 · [Reserved]
40 CFR 421.190 · Applicability: Description of the secondary indium subcategory.
40 CFR 421.191 · Specialized definitions.
40 CFR 421.192-421.193 · §§ 421.192-421.193 [Reserved]
40 CFR 421.194 · Standards of performance for new sources.
40 CFR 421.195 · Pretreatment standards for existing sources.
40 CFR 421.196 · Pretreatment standards for new sources.
40 CFR 421.197 · [Reserved]
40 CFR 421.200 · Applicability: Description of the secondary mercury subcategory.
40 CFR 421.201 · Specialized definitions.
40 CFR 421.202-421.203 · §§ 421.202-421.203 [Reserved]
40 CFR 421.204 · Standards of performance for new sources.
40 CFR 421.205 · [Reserved]
40 CFR 421.206 · Pretreatment standards for new sources.
40 CFR 421.207 · [Reserved]
40 CFR 421.210 · Applicability: Description of the primary molybdenum and rhenium subcategory.
40 CFR 421.211 · Specialized definitions.
40 CFR 421.212 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.213 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.214 · Standards of performance for new sources.
40 CFR 421.215 · [Reserved]
40 CFR 421.216 · Pretreatment standards for new sources.
40 CFR 421.217 · [Reserved]
40 CFR 421.220 · Applicability: Description of the secondary molybdenum and vanadium subcategory.
40 CFR 421.221 · Specialized definitions.
40 CFR 421.222 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.223 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.224 · Standards of performance for new sources.
40 CFR 421.225 · [Reserved]
40 CFR 421.226 · Pretreatment standards for new sources.
40 CFR 421.227 · [Reserved]
40 CFR 421.230 · Applicability: Description of the primary nickel and cobalt subcategory.
40 CFR 421.231 · Specialized definitions.
40 CFR 421.232 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.233 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.234 · Standards of performance for new sources.
40 CFR 421.235 · [Reserved]
40 CFR 421.236 · Pretreatment standards for new sources.
40 CFR 421.237 · [Reserved]
40 CFR 421.240 · Applicability: Description of the secondary nickel subcategory.
40 CFR 421.241 · Specialized definitions.
40 CFR 421.242-421.243 · §§ 421.242-421.243 [Reserved]
40 CFR 421.244 · Standards of performance for new sources.