42 U.S.C. § 4332 : US Code - Section 4332: Cooperation of agencies; reports; availability of information; recommendations; international and national coordination of efforts

      The Congress authorizes and directs that, to the fullest extent
    possible: (1) the policies, regulations, and public laws of the
    United States shall be interpreted and administered in accordance
    with the policies set forth in this chapter, and (2) all agencies
    of the Federal Government shall - 
        (A) utilize a systematic, interdisciplinary approach which will
      insure the integrated use of the natural and social sciences and
      the environmental design arts in planning and in decisionmaking
      which may have an impact on man's environment;
        (B) identify and develop methods and procedures, in
      consultation with the Council on Environmental Quality
      established by subchapter II of this chapter, which will insure
      that presently unquantified environmental amenities and values
      may be given appropriate consideration in decisionmaking along
      with economic and technical considerations;
        (C) include in every recommendation or report on proposals for
      legislation and other major Federal actions significantly
      affecting the quality of the human environment, a detailed
      statement by the responsible official on - 
          (i) the environmental impact of the proposed action,
          (ii) any adverse environmental effects which cannot be
        avoided should the proposal be implemented,
          (iii) alternatives to the proposed action,
          (iv) the relationship between local short-term uses of man's
        environment and the maintenance and enhancement of long-term
        productivity, and
          (v) any irreversible and irretrievable commitments of
        resources which would be involved in the proposed action should
        it be implemented.

      Prior to making any detailed statement, the responsible Federal
      official shall consult with and obtain the comments of any
      Federal agency which has jurisdiction by law or special expertise
      with respect to any environmental impact involved. Copies of such
      statement and the comments and views of the appropriate Federal,
      State, and local agencies, which are authorized to develop and
      enforce environmental standards, shall be made available to the
      President, the Council on Environmental Quality and to the public
      as provided by section 552 of title 5, and shall accompany the
      proposal through the existing agency review processes;
        (D) Any detailed statement required under subparagraph (C)
      after January 1, 1970, for any major Federal action funded under
      a program of grants to States shall not be deemed to be legally
      insufficient solely by reason of having been prepared by a State
      agency or official, if:
          (i) the State agency or official has statewide jurisdiction
        and has the responsibility for such action,
          (ii) the responsible Federal official furnishes guidance and
        participates in such preparation,
          (iii) the responsible Federal official independently
        evaluates such statement prior to its approval and adoption,
          (iv) after January 1, 1976, the responsible Federal official
        provides early notification to, and solicits the views of, any
        other State or any Federal land management entity of any action
        or any alternative thereto which may have significant impacts
        upon such State or affected Federal land management entity and,
        if there is any disagreement on such impacts, prepares a
        written assessment of such impacts and views for incorporation
        into such detailed statement.

      The procedures in this subparagraph shall not relieve the Federal
      official of his responsibilities for the scope, objectivity, and
      content of the entire statement or of any other responsibility
      under this chapter; and further, this subparagraph does not
      affect the legal sufficiency of statements prepared by State
      agencies with less than statewide jurisdiction.(!1)

        (E) study, develop, and describe appropriate alternatives to
      recommended courses of action in any proposal which involves
      unresolved conflicts concerning alternative uses of available
        (F) recognize the worldwide and long-range character of
      environmental problems and, where consistent with the foreign
      policy of the United States, lend appropriate support to
      initiatives, resolutions, and programs designed to maximize
      international cooperation in anticipating and preventing a
      decline in the quality of mankind's world environment;
        (G) make available to States, counties, municipalities,
      institutions, and individuals, advice and information useful in
      restoring, maintaining, and enhancing the quality of the
        (H) initiate and utilize ecological information in the planning
      and development of resource-oriented projects; and
        (I) assist the Council on Environmental Quality established by
      subchapter II of this chapter.