Maryland Code, Natural Resources § 8-1808.11

(a) Other than in areas designated by the Department of the Environment mapping as appropriate for structural shoreline stabilization measures, improvements to protect a person's property against erosion shall consist of nonstructural shoreline stabilization measures that preserve the natural environment, such as marsh creation, except in areas where the person can demonstrate to the satisfaction of the Department of the Environment that these measures are not feasible, including areas of excessive erosion, areas subject to heavy tides, and areas too narrow for effective use of nonstructural shoreline stabilization measures.