Subpart X—Secondary Precious Metals Subcategory
- §421.260 Applicability: Description of the secondary precious metals subcategory.
- §421.261 Specialized definitions.
- §421.262 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
- §421.263 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
- §421.264 Standards of performance for new sources.
- §421.265 Pretreatment standards for existing sources.
- §421.266 Pretreatment standards for new sources.
- §421.267 [Reserved]