; (iii) in the case of a proposed project partially on land owned by the United States and partially on State, Tribal, or private land, the applicable Federal land management agency; and (iv) in the case of a proposed project on land owned by the United States that is managed by more than 1 Federal land management agency, the Federal land management agency selected by the Administrator to be the lead agency, after consultation with the applicable Federal land management agencies. (C) Coordination To the maximum extent practicable, the lead agency described in subparagraph (B) shall coordinate procedures under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) with State, Tribal, and Federal cooperating agencies, as applicable. (D) Cooperating agency In the case of a proposed project on land owned by the United States, the Administrator shall be a cooperating agency for purposes of an environmental assessment and public comment under this subsection. (E) Single NEPA document The lead agency described in subparagraph (B) may conduct a single environmental assessment for— (i) the issuance of a Good Samaritan permit; (ii) any activities authorized by a Good Samaritan permit; and (iii) any applicable permits required by the Secretary of the Interior or the Secretary of Agriculture. (F) No significant impact (i) In general A Good Samaritan permit may only be issued if, after an environmental assessment, the head of the lead agency issues a finding of no significant impact (as defined in section 111 of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4336e )). (ii) Significant impact If the head of the lead agency is unable to issue a finding of no significant impact (as so defined), the head of the lead agency shall not issue a Good Samaritan permit for the proposed project. (G) Decision document An approval or denial of a Good Samaritan permit may be issued as a single decision document that is signed by— (i) the Administrator