; and (2) in clause (ii)(III), by striking section 42(d)(5)(C)(iii) of the Internal Revenue Code of 1986 and inserting section 42(d)(5)(B)(iii) of the Internal Revenue Code of 1986 . 4. Amendments to definitions of base closure area and qualified disaster area 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 3, is further amended— (1) by amending clause (ii) of subparagraph (D) to read as follows: (ii) Limitation With respect to a base closure area that is a census tract or nonmetropolitan county described in clause (i), such census tract or nonmetropolitan shall be treated as a HUBZone for a period beginning on the date the military installation undergoes final closure and ending on the date the base closure area ceases to be a qualified census tract under subparagraph (A) or a qualified nonmetropolitan county under subparagraph (B) in accordance with the online tool prepared by the Administrator described under subsection (d)(7).