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

Regulations last checked for updates: Feb 06, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

View all text of Subpart I [§ 414.90 - § 414.91]

§ 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.

source: 52 FR 42568, Nov. 5, 1987, unless otherwise noted.

cite as: 40 CFR 414.90