; and (ii) recognized as part of the Reservation. (2) Requirements (A) In general In carrying out paragraph (1), the Secretary shall, during the 5-year period beginning on the date of enactment of this Act, give priority to an exchange of public land within the State for State trust land owned by the State. (B) Total value The total value of the land exchanged and acquired for the Tribes pursuant to this subsection shall not exceed the value of the surface estate of the 36,808 acres described in paragraph (1)(A). (C) Private exchanges (i) In general Subject to subparagraph (B), if, for any reason, after the expiration of the period described in subparagraph (A), the exchanges under paragraph (1) have not provided to the Tribes a total of 36,808 acres of surface land within the boundaries of the Reservation, the Secretary shall, at the request of, and in cooperation with, the Tribes, develop and implement a program to provide to the Tribes additional land within the Reservation through land exchanges with private landowners. (ii) Requirement In carrying out this subparagraph, the Secretary may exchange public land within the State for private land of substantially equal value within the boundaries of the Reservation, in accordance with section 206 of the Federal Land Policy and Management Act of 1976 ( 43 U.S.C. 1716 ). (D) Valuation In determining the fair market value of land under subparagraph (C), the parties to an exchange made pursuant to that subparagraph shall give due consideration to the value of improvements on the land. (E) Title If the Secretary obtains private land pursuant to subparagraph (C), the Secretary shall transfer title to the land to the Tribes. (F) Trust Title to any private or public land transferred to the Tribes pursuant to this paragraph shall— (i) be vested in the United States in trust for the sole use and benefit of the Tribes