U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 420Subpart E - Subpart E—Vacuum Degassing Subcategory
§ 420.50 - Applicability; description of the vacuum degassing subcategory.
§ 420.51 - [Reserved]
§ 420.52 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§ 420.53 -
§ 420.54 - New source performance standards (NSPS).
§ 420.55 - Pretreatment standards for existing sources (PSES).
§ 420.56 - Pretreatment standards for new sources (PSNS).
§ 420.57 - [Reserved]
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