40 C.F.R. § 417.100

Applicability; description of the air—SO 3 sulfation and sulfonation subcategory.

Last amended: 2016Year: 2026Length: 40 wordsOfficial source

Cite as 40 C.F.R. § 417.100 (2026)

The provisions of this subpart are applicable to discharges resulting from the manufacture of sulfonic acids and sulfuric acid esters by means of sulfation and sulfonation employing air and sulfur trioxide (SO 3 ), in either continuous or batch processes.
40 C.F.R. § 417.100: Applicability; description of the air—SO 3 sulfation and sulfonation subcategory. | Justis AI