entity that would be treated as a single employer with such an entity under the rules of subsection (a) or (b) of section 52 or subsection (m) or (o) of section 414. . (b) Clerical amendment The table of subchapters for chapter 1 of the Internal Revenue Code of 1986 is amended by inserting after the item relating to subchapter U the following new item: SUBCHAPTER U–1—Community economic assistance zones . (c) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2016. 3. 15-year depreciation for certain rebuilt and retrofitted community economic assistance zone property (a) In general Subparagraph (E) of section 168(e)(3) of the Internal Revenue Code of 1986 is amended— (1) by striking and at the end of clause (viii)