; and , and by inserting after paragraph (16) the following new paragraph: (17) There shall be included amounts treated as wages under section 3128 and an amount equal to 1/2 of the tax imposed under section 3111 pursuant to the substituted rates specified in subparagraphs (A) and (B) of section 3128(a)(2). . (c) Clerical amendment The table of sections for subchapter C of chapter 21 of such Code is amended by striking the item relating to section 3128 and inserting the following new items: Sec. 3128. Treatment of certain large employers. Sec. 3129. Short title. . (d) Effective date The amendment made by this section shall apply to remuneration and other payments made after December 31, 2024.