of such credit. Such report shall include— (1) an evaluation of each standard used under such section in determining the eligibility of property for credit under such section including whether relevant higher industry standards have been developed, and (2) recommendations (if any) for higher standards which would supplement or replace such current standards and an analysis of how such higher standards would be expected to improve the effectiveness of such credit. 5. Improvements to new energy efficient home credit (a) Extension of credit (1) In general Section 45L(g) of the Internal Revenue Code of 1986 is amended by striking December 31, 2020 and inserting December 31, 2050 . (2) Effective date The amendments made by this subsection shall apply to qualified new energy efficient homes acquired after December 31, 2020. (b) Updating new energy efficient home credit (1) In general Section 45L of the Internal Revenue Code of 1986 is amended— (A) in subsection (a)(2)— (i) in subparagraph (A), by striking $2,000 and inserting $2,500