(provided for in subheading 3905.19.00) Free No change No change On or before 12/31/2024 . 4685. Food-grade vinyl acetate copolymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.97 Dodecanoic acid, ethenyl ester, polymer with ethenyl acetate (CAS No. 26354–30–3) (provided for in subheading 3905.19.00) Free No change No change On or before 12/31/2024 . 4686. Vinyl chloride ethylene with enhanced properties Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.98 Mixtures containing by weight less than 75 percent of ethylene-vinyl acetate-vinyl chloride copolymer (CAS No. 25085–46–5) (provided for in subheading 3905.29.00) Free No change No change On or before 12/31/2024 . 4687. Vinyl acetate ethylene copolymer with enhanced properties Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.24.99 Mixtures containing not more than 75 percent by weight of poly(ethylene-co-ethenyl acetate) (CAS No. 24937–78–8), other than in aqueous dispersion (provided for in subheading 3905.29.00) Free No change No change On or before 12/31/2024 . 4688. Food-grade polyvinyl acetate homopolymers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.01 Dodecanoic acid, ethenyl ester, polymer with ethenyl acetate (CAS No. 26354–30–3) (provided for in subheading 3905.29.00) Free No change No change On or before 12/31/2024 . 4689. Acrylic acid/vinylsulphonate random copolymers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.25.02 Acrylic acid-sodium vinylsulfonate copolymers, sodium persulfate initiated, reaction product with tetrasodium vinylidene diphosphonic acid (CAS No. 397256–50–7) (provided for in subheading 3905.91.50) Free No change No change On or before 12/31/2024 . 4690. Poly(methyl methacrylate) microspheres Subchapter II of chapter 99 is amended