As part of the General Plan for the physical development of that part of the Maryland-Washington Regional District in Prince George's County, Maryland, there has been prepared, adopted, and approved a master plan for historic preservation, titled "Historic Sites and Districts Plan, Prince George's County, Maryland," which constitutes an amendment of the General Plan for the Maryland-Washington Regional District. Said plan designates historic resources, Historic Sites, and Historic Districts, and delineates their boundaries; it proposes means for the integration of historic preservation into the planning process; and it suggests other measures to advance the goals of historic preservation. The master plan for historic preservation specifies the significant characteristics and values of each Historic Site and Historic District, and includes boundary justification for each Historic District.