; (B) purchase from a willing seller with donated or appropriated funds; or (C) exchange. (2) Limitation Any land owned by the States or a political subdivision of 1 of the States may be acquired only by donation. (3) Notice Not later than 30 days after the date on which the Secretary acquires sufficient land under this subsection to achieve compliance with subsection (b)(2), the Secretary shall publish in the Federal Register a notice of the establishment of the historical park. (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) sections 100101(a), 100751(a), 100752, 100753, and 102101 of title 54, United States Code; and (ii) chapters 1003 and 3201 of title 54, United States Code. (2) Cooperative agreements (A) In general The Secretary may enter into cooperative agreements with the States and political subdivisions of the States, institutions of higher education, nonprofit organizations, Indian Tribes, and individuals— (i) to identify, interpret, and restore nationally significant historical or cultural and natural resources relating to the life of the Mississippian Culture within the boundaries of the historical park, subject to the condition that such an agreement shall provide for reasonable public access; and (ii) to conduct research relating to the Mississippian Culture. (B) Cost-sharing (i) Federal share The Federal share of the total cost of any activity carried out under this paragraph shall be not more than 50 percent. (ii) Form of non-Federal share The non-Federal share of the cost of carrying out an activity under this paragraph may be in the form of— (I) in-kind contributions