§ 421.180 Applicability: Description of the primary and secondary germanium and gallium subcategory
§ 421.181 Specialized definitions
§ 421.182 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
§ 421.183 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
§ 421.184 Standards of performance for new sources
§ 421.185 Pretreatment standards for existing sources
§ 421.186 Pretreatment standards for new sources