The target audience for the Wetland and Riparian Area Legal workshop is lawyers, regulators, and other staff from federal, statel, tribal, and local government agencies, consultants, landowners, staff of environmental organizations or others interested in identifying waters of the U.S. for Section 404 permitting and for other purposes. Specific paper topics will include Clean Water Act implications of SWANCC, Agency guidance concerning SWANCC; Federal, state and local programs to fill the gap created by SWANCC; and joint state/federal enforcement of CWA and state pollution laws to close the gap.