§ 421.300 Applicability: Description of the primary and secondary titanium subcategory
§ 421.301 Specialized definitions
§ 421.302 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
§ 421.303 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
§ 421.304 Standards of performance for new sources
§ 421.305 Pretreatment standards for existing sources
§ 421.306 Pretreatment standards for new sources