The establishment of a dune preservation district is a means to employ land use controls to favor creation of natural dunes designed to provide protection to shorefront structures and to serve as wildlife habitat. The application of dune district zoning is derived from a conceptual framework that analyzes the numerous factors contributing to dune formation and modification and that incorporates appropriate uses of this dynamic environment. The establishment of a preservation district requires an analysis of the physical processes and the cultural modifications that affect dune formation and shoreline migration. This information can be used to determine the appropriate dune characteristics necessary for adequate protection and the maintenance required to continue to provide this protection.