42 of such Code, in the case of property placed in service during the period beginning on January 1, 2017, and ending on December 31, 2021, the Louisiana storm and flood disaster area— (A) shall be treated as difficult development areas designated under subclause (I) of section 42(d)(5)(B)(iii) of such Code, and (B) shall not be taken into account for purposes of applying the limitation under subclause (II) of such section. (2) Application Paragraph (1) shall apply only to— (A) housing credit dollar amounts allocated during the period beginning on January 1, 2017, and ending on December 31, 2019, and (B) buildings placed in service during the period described in paragraph (1) to the extent that paragraph (1) of section 42(h) does not apply to any building by reason of paragraph (4) thereof, but only with respect to bonds issued after December 31, 2016. (d) Special rule for applying income tests In the case of property placed in service— (1) during 2017, 2018, or 2019, (2) in the Louisiana storm and flood disaster area, and (3) in a nonmetropolitan area (as defined in section 42(d)(5)(B)(iv)(IV)), section 42 of such Code shall be applied by substituting national nonmetropolitan median gross income (determined under rules similar to the rules of section 142(d)(2)(B)) for area median gross income in subparagraphs (A) and (B) of section 42(g)(1) of such Code. (e) Definitions Any term used in this section which is also used in section 42 shall have the same meaning as when used in such section. 409. Application of new markets tax credit to investments in community development entities serving Louisiana storm and flood disaster area For purposes of section 45D of the Internal Revenue Code of 1986— (1) a qualified community development entity shall be eligible for an allocation under subsection (f)(2) thereof of the increase in the new markets tax credit limitation described in paragraph (2) only if a significant mission of such entity is the recovery and redevelopment of the Louisiana storm and flood disaster area,