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40 CFR 421.245 · Pretreatment standards for existing sources.
40 CFR 421.246 · Pretreatment standards for new sources.
40 CFR 421.247 · [Reserved]
40 CFR 421.250 · Applicability: Description of the primary precious metals and mercury subcategory.
40 CFR 421.251 · Specialized definitions.
40 CFR 421.252 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.253 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.254 · Standards of performance for new sources.
40 CFR 421.255 · [Reserved]
40 CFR 421.256 · Pretreatment standards for new sources.
40 CFR 421.257 · [Reserved]
40 CFR 421.260 · Applicability: Description of the secondary precious metals subcategory.
40 CFR 421.261 · Specialized definitions.
40 CFR 421.262 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.263 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.264 · Standards of performance for new sources.
40 CFR 421.265 · Pretreatment standards for existing sources.
40 CFR 421.266 · Pretreatment standards for new sources.
40 CFR 421.267 · [Reserved]
40 CFR 421.270 · Applicability: Description of the primary rare earth metals subcategory.
40 CFR 421.271 · Specialized definitions.
40 CFR 421.272-421.273 · §§ 421.272-421.273 [Reserved]
40 CFR 421.274 · Standards of performance for new sources.
40 CFR 421.275 · Pretreatment standards for existing sources.
40 CFR 421.276 · Pretreatment standards for new sources.
40 CFR 421.277 · [Reserved]
40 CFR 421.280 · Applicability: Description of the secondary tantalum subcategory.
40 CFR 421.281 · Specialized definitions.
40 CFR 421.282 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.283 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.284 · Standards of performance for new sources.
40 CFR 421.285 · [Reserved]
40 CFR 421.286 · Pretreatment standards for new sources.
40 CFR 421.287 · [Reserved]
40 CFR 421.290 · Applicability: Description of the secondary tin subcategory.
40 CFR 421.291 · Specialized definitions.
40 CFR 421.292 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.293 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.294 · Standards of performance for new sources.
40 CFR 421.295 · Pretreatment standards for existing sources.
40 CFR 421.296 · Pretreatment standards for new sources.
40 CFR 421.297 · [Reserved]
40 CFR 421.300 · Applicability: Description of the primary and secondary titanium subcategory.
40 CFR 421.301 · Specialized definitions.
40 CFR 421.302 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.303 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.304 · Standards of performance for new sources.
40 CFR 421.305 · Pretreatment standards for existing sources.
40 CFR 421.306 · Pretreatment standards for new sources.
40 CFR 421.307 · [Reserved]
40 CFR 421.310 · Applicability: Description of the secondary tungsten and cobalt subcategory.
40 CFR 421.311 · Specialized definitions.
40 CFR 421.312 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.313 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.314 · Standards of performance for new sources.
40 CFR 421.315 · Pretreatment standards for existing sources.
40 CFR 421.316 · Pretreatment standards for new sources.
40 CFR 421.317 · [Reserved]
40 CFR 421.320 · Applicability: Description of the secondary uranium subcategory.
40 CFR 421.321 · Specialized definitions.
40 CFR 421.322 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.323 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.324 · Standards of performance for new sources.
40 CFR 421.325 · [Reserved]
40 CFR 421.326 · Pretreatment standards for new sources.
40 CFR 421.327 · [Reserved]
40 CFR 421.330 · Applicability: Description of the primary zirconium and hafnium subcategory.
40 CFR 421.331 · Specialized definitions.
40 CFR 421.332 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 421.333 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 421.334 · Standards of performance for new sources.
40 CFR 421.335 · [Reserved]
40 CFR 421.336 · Pretreatment standards for new sources.
40 CFR 421.337 · [Reserved]
40 CFR 422.10 · Applicability; description of the phosphorus production subcategory.
40 CFR 422.20 · Applicability; description of the phosphorus consuming subcategory.
40 CFR 422.30 · Applicability; description of the phosphate subcategory.
40 CFR 422.40 · Applicability; description of the defluorinated phosphate rock subcategory.
40 CFR 422.41 · Specialized definitions.
40 CFR 422.42 · Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 422.43 · Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 422.44 · [Reserved]
40 CFR 422.45 · Standards of performance for new sources.
40 CFR 422.46 · [Reserved]
40 CFR 422.47 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
40 CFR 422.50 · Applicability; description of the defluorinated phosphoric acid subcategory.
40 CFR 422.51 · Specialized definitions.
40 CFR 422.52 · Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 422.53 · Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 422.54 · [Reserved]
40 CFR 422.55 · Standards of performance for new sources.
40 CFR 422.56 · [Reserved]
40 CFR 422.57 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
40 CFR 422.60 · Applicability; description of the sodium phosphates subcategory.
40 CFR 422.61 · Specialized definitions.
40 CFR 422.62 · Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40 CFR 422.63 · Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40 CFR 422.64 · [Reserved]
40 CFR 422.65 · Standards of performance for new sources.
40 CFR 422.66 · [Reserved]