SUBPART L—Secondary Silver Subcategory (§421.120 to §421.127)
- 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.