. 4758. Biaxially oriented dielectric polypropylene film Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.73 Biaxially oriented dielectric polypropylene film, produced from solvent-washed low ash content (less than 50 ppm) polymer resin (CAS No. 9003–07–0) (provided for in subheading 3920.20.00) Free No change No change On or before 12/31/2024 . 4759. Biaxially oriented polypropylene (BOPP) capacitor-grade film Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.74 Transparent coextruded biaxially oriented polypropylene film, capacitor-grade, presented in rolls of a width not exceeding 790 mm and of a thickness not exceeding 15 μm (provided for in subheading 3920.20.00) Free No change No change On or before 12/31/2024 . 4760. Polyester capacitor-grade film Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.75 Transparent coextruded biaxially oriented polyester film, capacitor-grade, presented in roll form, of a width not exceeding 790 mm and of a thickness not exceeding 15 μm (provided for in subheading 3920.62.00) Free No change No change On or before 12/31/2024 . 4761. Acid form membranes Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.76 Membranes of short side chain (Poly(tetrafluoroethylene-co-perfluoro(3-oxa-4-pentenesulfonic acid)) (CAS No. 1163733–25–2) (provided for in subheading 3920.99.20) 4.1% No change No change On or before 12/31/2024 . 4762. Melamine resin foam Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.77 Foam of thermoset melamine resin, measuring 1,250 mm or more in width, 500 mm in height and 1,300 mm or more but not more than 3,100 mm in length, with a density not less than 4 and not more than 11 kg/m³ per EN ISO 845 specimen size 250 mm³ (provided for in subheading 3921.19.00) 5.5% No change No