- The document discusses the history and evolution of wetland regulation in the United States from the 1700s to the present, including a shift from encouraging wetland conversion to establishing regulations to protect wetlands. - Key milestones included the Clean Water Act of 1972 which established a permit program for dredging and filling wetlands, and regulations in the 1980s which allowed mitigation to offset wetland impacts. - Recent revisions to mitigation regulations in 2008 established more stringent requirements for mitigation planning, functional replacement of wetland impacts, and preference for mitigation banking.