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Regulations last checked for updates: Jul 02, 2026
Title 40 - Protection of Environment last revised: Aug 02, 2026
All Titles
Title 40
Chapter I
Part 421
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]
source:
49 FR 8790, Mar. 8, 1984, unless otherwise noted.
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