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Regulations last checked for updates: Apr 26, 2025
Title 40 - Protection of Environment last revised: Nov 26, 2025
All Titles
Title 40
Chapter I
Part 123
Subpart A - Subpart A—General
§ 123.1 - Purpose and scope.
§ 123.2 - Definitions.
§ 123.3 - Coordination with other programs.
authority:
Clean Water Act,
33 U.S.C. 1251
source:
48 FR 14178, Apr. 1, 1983, unless otherwise noted.
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