Subpart AC. Subpart AC—Secondary Tungsten and Cobalt Subcategory

• § 421.310 - Applicability: Description of the secondary tungsten and cobalt subcategory.
• § 421.311 - Specialized definitions.
• § 421.312 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
• § 421.313 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
• § 421.314 - Standards of performance for new sources.
• § 421.315 - Pretreatment standards for existing sources.
• § 421.316 - Pretreatment standards for new sources.
• § 421.317 - [Reserved]