the greater of— (I) $8 multiplied by the population of the qualifying disaster areas in such State, or (II) 50 percent of the State housing credit ceiling (determined without regard to this subparagraph) for 2015. (iii) Applicable percentage For purposes of this section, the applicable percentage with respect to any building to which amounts allocated under clause (i) shall be determined under subsection (b)(2), except that subparagraph (A) thereof shall be applied by substituting January 1, 2016 for January 1, 2015 . (iv) Allocations treated as made first from additional allocation amount for purposes of determining carryover For purposes of determining the unused State housing credit ceiling under subparagraph (C) for any calendar year, any increase in the State housing credit ceiling under clause (i) shall be treated as an amount described in clause (ii) of such subparagraph. (v) Qualifying disaster area For purposes of this subparagraph, the term qualifying federally declared disaster area means— (I) each county which is determined to warrant individual or individual and public assistance from the Federal Government under a qualifying natural disaster declaration described in clause (vi)(I), and (II) each county not described in subclause (I) which is included in the geographical area covered by a qualifying natural disaster declaration described in subclause (II) or (III) of clause (vi). (vi) Qualifying natural disaster declaration For purposes of clause (v), the term qualifying natural disaster declaration means— (I) a federally declared disaster (as defined in section 165(i)(5)) occurring during the period beginning after December 31, 2011, and before January 1, 2016, (II) a natural disaster declared by the Secretary of Agriculture in 2011 due to damaging weather and other conditions relating to Hurricane Irene or Tropical Storm Lee under section 321(a) of the Consolidated Farm and Rural Development Act ( 7 U.S.C. 1961(a) ), or (III) a major disaster or emergency designated by the President in 2011 due to