The "land/water interface" is the area where land and water meet. It can include wetlands, floodplains, dams, lakes, streams, sand dunes, and more.
The EGLE/USACE Joint Permit Application (JPA) covers permit requirements derived from state and federal rules and regulations for construction activities where the land meets the water. This joint permit prevents duplication of state and federal permitting and provides simultaneous review for activities on or for wetlands, floodplains, dams, inland lakes, streams, Great Lakes bottomlands, critical sand dunes, environmental Areas of Concern, and high risk erosion areas.