after December 31, 2017. . (c) Repeal of section 30D (1) In general Subpart B of part IV of subchapter A of chapter 1 is amended by striking section 30D (and by striking the item relating to such section in the table of sections for such subpart). (2) Conforming amendments (A) Section 38(b) is amended by striking paragraph (35). (B) Section 1016(a) is amended by striking paragraph (37). (C) Section 6501(m) is amended by striking 30D(e)(4), . (d) Effective date (1) In general Except as provided in paragraphs (2) and (3), the amendments made by this section shall apply to taxable years beginning after December 31, 2017. (2) Subsection (b) The amendment made by subsection (c) shall apply to taxable years ending after December 31, 2017. (3) Subsection (c) The amendments made by subsection (d) shall apply to vehicles placed in service in taxable years beginning after December 31, 2017. 1103. Refundable credit program integrity (a) Identification requirements for child and family tax credit (1) In general Section 24(e) is amended to read as follows: (e) Identification requirements (1) Requirements for qualifying child No credit shall be allowed under this section to a taxpayer with respect to any qualifying child unless the taxpayer includes the name and social security number of such qualifying child on the return of tax for the taxable year. The preceding sentence shall not prevent a qualifying child from being treated as a dependent described in subsection (a)(2). (2) Other identification requirements No credit shall be allowed under this section with respect to any individual unless the taxpayer identification number of such individual is included on the return of tax for the taxable year and such identifying number was issued before the due date for filing the return for the taxable year. (3) Social security number For purposes of this subsection, the term social security number means a social security number issued by the Social Security Administration (but only if the social security number is issued to a