40 C.F.R. § 421.20

Applicability: description of the primary aluminum smelting subcategory.

Last amended: 2016Year: 2026Length: 21 wordsOfficial source

Cite as 40 C.F.R. § 421.20 (2026)

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: Applicability: description of the primary aluminum smelting subcategory. | Justis AI