; (B) purchase from a willing seller with donated or appropriated funds; or (C) exchange. (2) Limitation Any land or interests in land owned by the State or a political subdivision of the State may be acquired for inclusion in the Historic Site only by donation. (f) Administration The Secretary shall administer the Historic Site in accordance with— (1) this section; and (2) the laws generally applicable to units of the National Park System, including— (A) sections 100101(a), 100751(a), 100752, and 100753 of title 54, United States Code; and (B) chapters 1003 and 3201 of title 54, United States Code. (g) Management plan Not later than 3 years after the date on which funds are first made available to carry out this Act, the Secretary shall complete a management plan for the Historic Site in accordance with section 100502 of title 54, United States Code. (h) Agreements Within or outside the boundaries of the Historic Site, the Secretary may enter into cooperative agreements, leases, or other agreements, as appropriate, with the State or other entities to provide and facilitate interpretive and educational services, administrative support, and technical assistance related to the Historic Site, including— (1) the placement of directional and interpretive signage; (2) exhibits; (3) parking and other administrative needs; (4) technology-based interpretive devices; (5) public interpretation and tours; and (6) the preservation of historic and cultural resources.