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Regulations last checked for updates: Apr 25, 2026
Title 40 - Protection of Environment last revised: Aug 25, 2026
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Title 40
Chapter I
Part 421
Subpart P - Subpart P—Primary and Secondary Germanium and Gallium Subcategory
§ 421.180 - Applicability: Description of the primary and secondary germanium and gallium subcategory.
§ 421.181 - Specialized definitions.
§ 421.182 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 421.183 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 421.184 - Standards of performance for new sources.
§ 421.185 - Pretreatment standards for existing sources.
§ 421.186 - Pretreatment standards for new sources.
§ 421.187 - [Reserved]
source:
49 FR 8790, Mar. 8, 1984, unless otherwise noted.
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