Subpart L. Subpart L—Secondary Silver Subcategory

• § 421.120 - Applicability: Description of the secondary silver subcategory.
• § 421.121 - Specialized definitions.
• § 421.122 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
• § 421.123 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
• § 421.124 - Standards of performance for new sources.
• § 421.125 - Pretreatment standards for existing sources.
• § 421.126 - Pretreatment standards for new sources.
• § 421.127 - [Reserved]