CFR›Title 40›Chapter I›Part 117›Subpart B ContainsSections 117.11–117.14CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart B—Applicability Sections 117.11 § 117.11 General applicability. 117.12 § 117.12 Applicability to discharges from facilities with NPDES permits. 117.13 § 117.13 Applicability to discharges from publicly owned treatment works and their users. 117.14 § 117.14 Demonstration projects. Previous A Subpart A—General Provisions Next C Subpart C—Notice of Discharge of a Reportable Quantity