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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 415
Subpart AP - Subpart AP—Hydrogen Cyanide Production Subcategory
§ 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
§ 415.421 - Specialized definitions.
§ 415.422 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§ 415.423 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
§ 415.424 - [Reserved]
§ 415.425 - New source performance standards (NSPS).
§ 415.426 - Pretreatment standards for new sources (PSNS).
§ 415.427 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
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