(b) Area included The historical park shall consist of lands and interests therein as follows:
(1) Lands and structures associated with the Oakland Plantation as depicted on map CARI, 80,002, dated January 1994.
(2) Lands and structures owned or acquired by Museum Contents, Inc. as depicted on map CARI, 80,001A, dated May 1994.
(3) Sites that may be the subject of cooperative agreements with the National Park Service for the purposes of historic preservation and interpretation including, but not limited to, the Melrose Plantation, the Badin-Rouge site, the Cherokee Plantation, the Beau Fort Plantation, and sites within the Natchitoches National Historical Landmark District: Provided, That such sites may not be added to the historical park unless the Secretary of the Interior (hereinafter referred to as the Secretary) determines, based on further research and planning, that such sites meet the applicable criteria for national historical significance, suitability, and feasibility, and notification of the proposed addition has been transmitted to the Committee on Energy and Natural Resources of the United States Senate and the appropriate committees of the House of Representatives.
(4) Not to exceed 10 acres of land that the Secretary may designate for an interpretive visitor center complex to serve the needs of the historical park and heritage area established in part B of this subchapter.