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Regulations last checked for updates: May 17, 2025
Title 40 - Protection of Environment last revised: Nov 17, 2025
All Titles
Title 40
Chapter I
Part 117
Subpart B - Subpart B—Applicability
§ 117.11 - General applicability.
§ 117.12 - Applicability to discharges from facilities with NPDES permits.
§ 117.13 - Applicability to discharges from publicly owned treatment works and their users.
§ 117.14 - Demonstration projects.
authority:
33 U.S.C. 1251
source:
44 FR 50776, Aug. 29, 1979, unless otherwise noted.
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