§ 421.331 Specialized definitions.
Current through Aug 22, 2025 · Read all of Part 421
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
Current through Aug 22, 2025 · Read all of Part 421
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
← § 421.330 Applicability: Description of the primary zirconium and hafnium subcategory.§ 421.332 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. →