; or (B) the date on which the Secretary enters into a written agreement with the owner of the site providing that the site shall be managed in accordance with this Act. (4) Notice Not later than 30 days after the date on which the Secretary includes a site described in paragraph (2) in the historical park, the Secretary shall publish in the Federal Register notice of the addition to the historical park. (c) Availability of map The map shall be available for public inspection in the appropriate offices of the National Park Service. (d) Land acquisition The Secretary may acquire land and interests in land within the area generally depicted on the map as Proposed NPS Boundary by donation, purchase from a willing seller with donated or appropriated funds, or exchange. (e) Administration (1) In general The Secretary shall administer the historical park in accordance with— (A) this section; and (B) the laws generally applicable to units of the National Park System, including— (i) section 100101(a), chapter 1003, and sections 100751(a), 100752, 100753, and 102101 of title 54, United States Code