; and (B) the Secretary of the Interior, with respect to land managed by the Department of the Interior (including land held in trust for an Indian Tribe). 3. State or Tribal permitting authority (a) In general The Secretary concerned shall establish (or in the case where both Department of the Interior and National Forest System land would be affected, shall jointly establish) a voluntary program under which any State or Indian Tribe may offer, and the Secretary concerned may agree, to enter into a memorandum of understanding to allow for the State or Indian Tribe to prepare environmental analyses required under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) for the permitting of broadband projects within an operational right-of-way on National Forest System land, land managed by the Department of the Interior, and Indian Lands. Under such a memorandum of understanding, an Indian Tribe or State may volunteer to cooperate with the signatories to the memorandum in the preparation of the analyses required under the National Environmental Policy Act of 1969. (b) Assumption of responsibilities (1) In general In entering into a memorandum of understanding under this section, the Secretary concerned may assign to the State or Indian Tribe, and the State or Indian Tribe may agree to assume, all or part of the responsibilities of the Secretary concerned for environmental analyses under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.). (2) State or Indian Tribe responsibility (A) In general A State or Indian Tribe that assumes any responsibility under paragraph (1) shall be subject to the same procedural and substantive requirements as would apply if the responsibility were carried out by the Secretary concerned. (B) Effect of assumption of responsibility A State or Indian Tribe that assumes any responsibility, including financial responsibility, under paragraph (1) shall be solely responsible and solely liable for carrying out, in lieu of the Secretary concerned, the