(2) Conforming amendment Section 25D(g) of such Code is amended by striking paragraphs (1) and (2) of . (c) Effective date The amendments made by this section shall apply to property placed in service after December 31, 2016. 3504. Repeal of enhanced oil recovery credit (a) In general Subpart D of part IV of subchapter A of chapter 1 is amended by striking section 43 (and by striking the item relating to such section in the table of sections for such subpart). (b) Conforming amendments (1) Section 38(b) is amended by striking paragraph (6). (2) Section 6501(m) is amended by striking 43, . (c) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2017. 3505. Repeal of credit for producing oil and gas from marginal wells (a) In general Subpart D of part IV of subchapter A of chapter 1 is amended by striking section 45I (and by striking the item relating to such section in the table of sections for such subpart). (b) Conforming amendment Section 38(b) is amended by striking paragraph (19). (c) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2017. 3506. Modifications of credit for production from advanced nuclear power facilities (a) Treatment of unutilized limitation amounts Section 45J(b) is amended— (1) in paragraph (4), by inserting or any amendment to after enactment of