Part 120—Definition of Waters of the United States RegSenseWater ProgramsWater QualityCFR RegulationsCFR PartEnvironmental Protection Agency (EPA)EnvironmentalWater QualityEnglishFocus AreaUSA
Authority: 33 U.S.C. 1251 et seq.§120.1 Purpose and scope.§120.2 Definitions.['Water Programs']['Water Quality']