Subpart AA. Subpart AA—Secondary Tin Subcategory

• § 421.290 - Applicability: Description of the secondary tin subcategory.
• § 421.291 - Specialized definitions.
• § 421.292 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
• § 421.293 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
• § 421.294 - Standards of performance for new sources.
• § 421.295 - Pretreatment standards for existing sources.
• § 421.296 - Pretreatment standards for new sources.
• § 421.297 - [Reserved]