40 CFR § 414.100
Applicability; description of the subcategory of direct discharge point sources that do not use end-of-pipe biological treatment
June 9, 2020
The provisions of this subpart are applicable to the process wastewater discharges resulting from the manufacture of the OCPSF products and product groups defined by §414.11 from any point source that does not use end-of-pipe biological treatment and does not install end-of-pipe biological treatment to comply with BPT effluent limitations.