In November 2000 Public Law 106-487 authorized a feasibility study for the preservation of Civil War battlefields along the Vicksburg Campaign Trail. The feasibility study is to be completed within three years and is to examine and evaluate a variety of sites in Arkansas, Louisiana, Mississippi, Tennessee, and other sites as considered appropriate by the secretary of the interior.

Public Law 106-487 directs a review of current National Park Service programs, policies, and criteria to determine the most appropriate means of preservation; to make evaluations for the establishment of a site and management entity consisting of a unit of government or private nonprofit organization; and to make recommendations to the states regarding the management, preservation, and interpretation of natural, cultural, and historical resources associated with the various sites. Furthermore, the legislation directs that parnerships among Federal, state, and local governments, regional entities, and the private sector be identified where they would provide an effective means of preserving specific battlefield sites. Finally, the legislation requires that methods of insuring continued local involvement in the management of battlefield sites be explored.

New areas are occasionally added to the national park system by an act of Congress. However, before Congress decides to create a new park, it needs information about the quality of the resource and whether it meets established criteria. The National Park Service answers such questions by conducting studies of specific resources to determine their level of significance. If an area meets the standards of national significance, additional analysis is undertaken to answer questions regarding the site's suitability and feasibility as a park unit and to explore alternatives for management and protection. If an area does not meet the standards of national significance, the Natijonal Park Service can suggest other appropriate means of protection.