Statutes, codes, and regulations
Code of Federal Regulations
Title 40 - PROTECTION OF ENVIRONMENTChapter I - ENVIRONMENTAL PROTECTION AGENCYSubchapter N - EFFLUENT GUIDELINES AND STANDARDSPart 421 - NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
Subpart B - PRIMARY ALUMINUM SMELTING SUBCATEGORY
Section 421.20 - Applicability: description of the primary aluminum smelting subcategory

40 C.F.R. § 421.20

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Current through September 30, 2024
Section 421.20 - Applicability: description of the primary aluminum smelting subcategory

The provisions of this subpart are applicable to discharges resulting from the production of aluminum from alumina in the Hall-Heroult process.

40 C.F.R. § 421.20