change On or before 12/31/2024 . 4677. Vinyl chloride ethylene copolymer with hydrophic properties Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.89 Mixtures containing by weight less than 70 percent of ethylene-vinyl chloride copolymer (CAS No. 25037–78–9) (provided for in subheading 3904.40.00) Free No change No change On or before 12/31/2024 . 4678. Fluids with boiling points above 170 °C Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.90 1-Propene, 1,1,2,3,3,3-hexafluoro-, oxidized, polymerized (CAS 69991–67–9) (provided for in subheading 3904.69.50), with boiling point above 170 °C Free No change No change On or before 12/31/2024 . 4679. Formulations of functionalized perfluoropolyether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.91 Ethene, 1,1,2,2-tetrafluoro-, oxidized, polymerized, reduced, fluorinated, ethyl esters, reduced (CAS No. 1573124–82–9) (provided for in subheading 3904.69.50) Free No change No change On or before 12/31/2024 . 4680. Perfluoropolyether-urethane acrylate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.92 Perfluoropolyether-urethane acrylate (2-propenoic acid, 2-hydroxyethyl ester, reaction products with 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane trimer and reduced Me esters of reduced polymerized, oxidized tetrafluoroethylene) (CAS No. 918664–08–1) present in a quantity comprising 60 percent or more but less than 70 percent by weight, the foregoing dissolved in 0.5 percent or more but less than 1 percent by weight of propan-2-ol (isopropyl alcohol) (CAS No. 67–63–0), 15 percent or more but less than 20 percent by weight of ethyl acetate (CAS No.141–78–6) and 10 percent or more but less than 15 percent by weight of butyl acetate (CAS No.123–86–4) (provided for in subheading 3904.69.50) Free No change No change On or