The U.S. Environmental Protection Agency? (EPA) and the U.S. Army Corps of Engineers (Corps) jointly released a new proposed rule – Definition of Waters of the U.S. Under the Clean Water Act – that would amend the definition of “waters of the U.S.” and expand the range of waters that fall under federal jurisdiction. Counties could feel a major impact as more waters become federally protected and subject to new rules or standards. The proposed rule would impact county-owned and maintained roadside ditches, flood control channels, drainage conveyances, stormwater systems, green infrastructure construction and maintenance.