§ 418.30 Applicability; description of the urea subcategory
§ 418.31 Specialized definitions
§ 418.32 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
§ 418.33 Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
§ 418.35 Standards of performance for new sources
§ 418.36 Pretreatment standards for new sources