CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS > SUBPART I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment (§414.90 to §414.91) > 414.90—Applicability; description of the subcategory of direct discharge point sources that use end-of-pipe biological treatment.

414.90—Applicability; description of the subcategory of direct discharge point sources that use end-of-pipe biological treatment.

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 uses end-of-pipe biological treatment or installs end-of-pipe biological treatment to comply with BPT effluent limitations.