; or (ii) carrying out section 9903(b). (C) Any activity relating to carrying out section 9906. (2) Savings clause Nothing in this subsection may be construed as altering whether an activity described in subparagraph (A), (B), or (C) of paragraph (1) is considered to be a major Federal action under NEPA, or an undertaking under division A of subtitle III of title 54, United States Code, for a reason other than that the activity is eligible for funding provided under this title. (d) Lead Federal agency and cooperating agencies (1) Definition In this subsection, the term lead agency has the meaning given the term in section 111 of NEPA. (2) Option to serve as lead agency With respect to a covered activity that is a major Federal action under NEPA, the Department of Commerce shall have the first right to serve as the lead agency with respect to that covered activity under NEPA. (3) Cooperating agency The Secretary may designate any Federal, State, Tribal, or local agency as a cooperating agency with respect to a covered activity for which the Department of Commerce serves as the lead agency under paragraph (1), if the applicable agency has— (A) the jurisdiction to issue an authorization or take action for or relating to that covered activity; or (B) special expertise with respect to that covered activity. (4) Environmental documents (A) Single document All authorizations relating to a covered activity shall rely on a single environmental document and joint record of decision prepared by the lead agency with respect to that covered activity for the purposes of NEPA. (B) Inclusion An environmental document and joint record of decision described in subparagraph (A) shall— (i) rely on any comments, analysis, proposals, or documentation developed by cooperating agencies designated under paragraph (3)