acrylate) (CAS No. 114653–42–8) (provided for in subheading 3904.40.00) Free No change No change On or before 12/31/2020 . 965. Vinyl chloride-hydroxypropyl acrylate copolymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.78 Poly(vinyl chloride-co-hydroxypropyl acrylate) (CAS No. 53710–52–4) (provided for in subheading 3904.40.00) Free No change No change On or before 12/31/2020 . 966. Aquivion (acid form) dispersion Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.79 Poly(1,1,2,2-tetrafluoro-2-[(trifluoroethenyl)oxy]ethanesulfonyl fluoride-co-tetrafluoroethylene) (CAS No. 1163733–25–2) (provided for in subheading 3904.69.50) Free No change No change On or before 12/31/2020 . 967. Aquivion (SO2F) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.80 Poly(1,1,2,2-tetrafluoro-2-[(trifluoroethenyl)oxy]ethanesulfonyl fluoride-co-tetrafluoroethylene) SO 2 F form (CAS No. 69462–70–0) (provided for in subheading 3904.69.50) Free No change No change On or before 12/31/2020 . 968. Aquivion (li salt) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.81 Poly(1,1,2,2-tetrafluoro-2-[(trifluoroethenyl)oxy]ethanesulfonyl fluoride-co-tetrafluoroethylene) lithium salt (CAS No. 1687740–67–5) (provided for in subheading 3904.69.50) Free No change No change On or before 12/31/2020 . 969. Aquivion (NH4 salt) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.82 Poly(1,1,2,2-tetrafluoro-2-[(trifluoroethenyl)oxy]ethanesulfonyl fluoride-co-tetrafluoroethylene) ammonium salt (CAS No. 1126091–34–6) (provided for in subheading 3904.69.50) Free No change No change On or before 12/31/2020 . 970. Solvene Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.83 1,1,2-Trifluoroethene -