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]