40 C.F.R. § 422.40

Applicability; description of the defluorinated phosphate rock subcategory.

Last amended: 2016Year: 2026Length: 32 wordsOfficial source

Cite as 40 C.F.R. § 422.40 (2026)

The provisions of this subpart are applicable to discharges resulting from the defluorination of phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica and other reagents.
40 C.F.R. § 422.40: Applicability; description of the defluorinated phosphate rock subcategory. | Justis AI