(a)
In general— Subparagraph (A) of section 36B(c)(1) of the Internal Revenue Code of 1986 is amended by striking “400 percent” and inserting “600 percent”.
(b)
Conforming amendments—
(1)
The table contained in clause (i) of section 36B(b)(3)(A) of such Code is amended in the first column of the last row by striking “400%” and inserting “600%”.
(2)
Clause (i) of section 36B(f)(2)(B) of such Code is amended—
(A)
by striking “400 percent” and inserting “600 percent”, and
(B)
in the first column of the last row of the table contained in such clause, by striking “400%” and inserting “600%”.
(c)
Effective date— The amendments made by this section shall apply to taxable years ending after December 31, 2014.