of section 1391(d)(1) of the Internal Revenue Code of 1986 (as in effect before the enactment of this Act), subparagraph (B) of such section shall not apply with respect to such designation if, after the date of the enactment of this section, the entity which made such nomination amends the nomination to provide for a new termination date in such manner as the Secretary of the Treasury (or the Secretary’s designee) may provide. (b) Effective date The amendment made by subsection (a)(1) shall apply to taxable years beginning after December 31, 2016. 213. Extension of temporary increase in limit on cover over of rum excise taxes to Puerto Rico and the Virgin Islands (a) In general Section 7652(f)(1) is amended by striking January 1, 2017 and inserting January 1, 2019 . (b) Effective date The amendment made by this section shall apply to distilled spirits brought into the United States after December 31, 2016. 214. Extension of American Samoa economic development credit (a) In general Section 119(d) of division A of the Tax Relief and Health Care Act of 2006 is amended— (1) by striking January 1, 2017 each place it appears and inserting January 1, 2018 , (2) by striking first 11 taxable years in paragraph (1) and inserting first 12 taxable years , and (3) by striking first 5 taxable years in paragraph (2) and inserting first 6 taxable years . (b) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2016. III Incentives for energy production and conservation 301. Extension of credit for nonbusiness energy property (a) In general Section 25C(g)(2) is amended by striking December 31, 2016 and inserting December 31, 2018 . (b) Effective date The amendment made by this section shall apply to property placed in service after December 31, 2016. 302. Extension and modification of credit for residential energy property (a) In general Section 25D(h) is amended by striking December 31, 2016 and all that follows and inserting December 31, 2021. . (b) Phaseout (1) In