; (4) in subparagraph (D), by striking Any and inserting any ; (5) by redesignating subparagraphs (D) through (I) as subparagraphs (F) through (K), respectively; (6) by inserting after subparagraph (C) the following: (D) ensure the professional integrity, including scientific integrity, of the discussion and analysis in an environmental document; (E) make use of reliable existing data and resources in carrying out this Act; ; (7) by amending subparagraph (G), as redesignated, to read as follows: (G) consistent with the provisions of this Act, study, develop, and describe technically and economically feasible alternatives within the jurisdiction and authority of the agency; ; and (8) in subparagraph (H), as amended, by inserting consistent with the provisions of this Act, before recognize . (b) New sections Title I of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) is amended by adding at the end the following: 106. Procedure for determination of level of review (a) Threshold determinations An agency is not required to prepare an environmental document with respect to a proposed agency action if— (1) the proposed agency action is not a final agency action within the meaning of such term in chapter 5 of title 5, United States Code; (2) the proposed agency action is covered by a categorical exclusion established by the agency, another Federal agency, or another provision of law; (3) the preparation of such document would clearly and fundamentally conflict with the requirements of another provision of law; (4) the proposed agency action is, in whole or in part, a nondiscretionary action with respect to which such agency does not have authority to take environmental factors into consideration in determining whether to take the proposed action; (5) the proposed agency action is a rulemaking that is subject to section 553 of title 5, United States Code