is amended— (1) by striking and smart grid and inserting , smart grid , and (2) by inserting , and electrochromatic glass before the comma at the end. (c) Effective date The amendment made by this section shall take effect on the date of the enactment of this Act. (d) Progress report During the 30-day period ending on December 31, 2025, the Secretary of the Treasury (or the Secretary’s delegate), after consultation with the Secretary of Labor, shall submit a report to Congress on the domestic job creation, wages associated with such jobs, and the amount of such wages paid as described in section 48C(e)(4)(B) of the Internal Revenue Code of 1986, attributable to the amendment made by this section. 502. Labor costs of installing mechanical insulation property (a) In general Subpart D of part IV of subchapter A of chapter 1, as amended by the preceding provisions of this Act, is further amended by adding at the end the following new section: 45V. Labor costs of installing mechanical insulation property (a) In general For purposes of section 38, the mechanical insulation labor costs credit determined under this section for any taxable year is an amount equal to 10 percent of the mechanical insulation labor costs paid or incurred by the taxpayer during such taxable year. (b) Mechanical insulation labor costs For purposes of this section— (1) In general The term mechanical insulation labor costs means the labor cost of installing mechanical insulation property with respect to a mechanical system referred to in paragraph (2)(A) which was originally placed in service not less than 1 year before the date on which such mechanical insulation property is installed. (2) Mechanical insulation property The term mechanical insulation property means insulation materials, and facings and accessory products installed in connection to such insulation materials— (A) placed in service in connection with a mechanical system which— (i) is located in the United States, and (ii) is of a character subject to an allowance for depreciation,