StacksVerified U.S. regulatory reference

40 CFR §417.110

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
The provisions of this subpart are applicable to discharges resulting from the operations in which undiluted SO3 and organic reactant are fed through a mixing nozzle into a vacuum reactor where the sulfonation of the organic reactant takes place.