No change No change On or before 12/31/2025 . 11637. Plastic fittings of perfluoroalkoxy Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.71 Plastic fittings of perfluoroalkoxy (PFA), of a kind used principally with machines and apparatus for the manufacture of semiconductors and flat panel displays of heading 8486 (provided for in subheading 3917.40.00, 3926.90.99 or 3923.50.00) Free No change No change On or before 12/31/2025 . 11638. Low density polyethylene (LDPE) sheeting Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.72 Low density sheeting of polyethylene, measuring in width 3,810 mm, gauge 0.15 mm and length 2,000 meters, translucent solid with waxy color as presented (provided for in subheading 3920.10.00) 3.1% No change No change On or before 12/31/2025 . 11639. 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 12/31/2025 . 11640. 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 12/31/2025 . 11641. 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