years in paragraph (1) and inserting first 15 taxable years , (3) by striking first 6 taxable years in paragraph (2) and inserting first 9 taxable years , and (4) by adding at the end the following flush sentence: In the case of a corporation described in subsection (a)(2), the Internal Revenue Code of 1986 shall be applied and administered without regard to the amendments made by section 401(d)(1) of the Tax Technical Corrections Act of 2018. . (b) Conforming amendment Section 119(e) of division A of the Tax Relief and Health Care Act of 2006 is amended by inserting (as in effect before its repeal) after section 199 of the Internal Revenue Code of 1986 . (c) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2017. C Incentives for Energy Production, Efficiency, and Green Economy Jobs 121. Biodiesel and renewable diesel (a) Income tax credit (1) In general Section 40A(g) is amended by striking December 31, 2017 and inserting December 31, 2020 . (2) Effective date The amendment made by this subsection shall apply to fuel sold or used after December 31, 2017. (b) Excise tax incentives (1) Termination (A) In general Section 6426(c)(6) is amended by striking December 31, 2017 and inserting December 31, 2020 . (B) Payments Section 6427(e)(6)(B) is amended by striking December 31, 2017 and inserting December 31, 2020 . (2) Effective date The amendments made by this subsection shall apply to fuel sold or used after December 31, 2017. (3) Special rule Notwithstanding any other provision of law, in the case of any biodiesel mixture credit properly determined under section 6426(c) of the Internal Revenue Code of 1986 for the period beginning on January 1, 2018, and ending with the close of the last calendar quarter beginning before the date of the enactment of this Act, such credit shall be allowed, and any refund or payment attributable to such credit (including any payment under section 6427(e) of such Code) shall be made, only in such manner as the Secretary of