; or (II) in the case of a catastrophic incident, on the date on which the catastrophic incident occurred in the area in which the census tract or nonmetropolitan county, as applicable, is located. (iii) Extension With respect to a census tract or nonmetropolitan county that is a qualified disaster area because it is located in an area in which a catastrophic incident occurred, the Administrator may extend the period described in clause (ii) if the Administrator determines that the census tract or nonmetropolitan county has not fully recovered from the catastrophic incident. (iv) Definitions In this subparagraph: (I) Major disaster area The term major disaster area means an area for which the President has declared a major disaster under section 401 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170 ). (II) Other definitions The terms census tract and nonmetropolitan county have the meanings given such terms in subparagraph (D)(iii). . 5. Amendment to definition of redesignated areas Paragraph (3) of section 31(b) of the Small Business Act (as transferred and redesignated by section 2 of this Act), as amended by section 4, is further amended by amending subparagraph (C) to read as follows: (C) Redesignated area The term redesignated area means any census tract that ceases to be qualified under subparagraph (A) and any nonmetropolitan county that ceases to be qualified under subparagraph (B) for a period of 3 years after the date on which the census tract or nonmetropolitan county ceased to be so qualified. . 6. Repeal of 5-year limitation on HUBZone status of base closure areas Section 152(a) of title I of division K of the Consolidated Appropriations Act, 2005 ( 15 U.S.C. 632 note) is amended by repealing paragraph (2). 7. Amendment to definition of qualified HUBZone small business concern Paragraph (4) of section 31(b) of the Small Business Act (as transferred and redesignated by section 2 of this Act) is amended to read as follows: (4) Qualified HUBZone small business