Subpart N - PRIMARY ANTIMONY SUBCATEGORY
- Section 421.140 - Applicability: Description of the primary antimony subcategory
- Section 421.141 - Specialized definitions
- Section 421.142 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
- Section 421.143 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
- Section 421.144 - Standards of performance for new sources
- Section 421.145 - Reserved
- Section 421.146 - Pretreatment standards for new sources
- Section 421.147 - Reserved