; and (ii) prepare any environmental review process document under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) required in support of any action or approval by the Secretary if— (I) the Secretary provides guidance in the preparation process and independently evaluates that document; (II) the project sponsor complies with all requirements applicable to the Secretary under— (aa) the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.); (bb) any regulation implementing that Act; and (cc) any other applicable Federal law; and (III) the Secretary approves and adopts the document before the Secretary takes any subsequent action or makes any approval based on that document, regardless of whether the action or approval of the Secretary results in Federal funding. (2) Duties The Secretary shall ensure that— (A) the project sponsor complies with all design and mitigation commitments made jointly by the Secretary and the project sponsor in any environmental document prepared by the project sponsor in accordance with this subsection; and (B) any environmental document prepared by the project sponsor is appropriately supplemented to address any changes to the project the Secretary determines are necessary. (3) Adoption and use of documents Any environmental document prepared in accordance with this subsection shall be adopted and used by any Federal agency making any determination related to the project study to the same extent that the Federal agency could adopt or use a document prepared by another Federal agency under— (A) the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.)