acid with 1,4-butanediol and hexanedioic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.23 Polymer of 1,4-benzenedicarboxylic acid with 1,4-butanediol and hexanedioic acid (CAS No. 60961–73–1) (provided for in subheading 3907.99.50) 2.9% No change No change On or before 12/31/2020 . 1009. 1,4-Benzenedicarboxylic acid, polymer with 1,4 butanediol and decanedioc acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.24 1,4-Benzenedicarboxylic acid, polymer with 1,4 butanediol and decanedioc acid (CAS No. 28205–74–5) (provided for in subheading 3907.99.50) Free No change No change On or before 12/31/2020 . 1010. 1,4-Benzenedicarboxylic acid, polymer with 1,4-butanediol, hexanedioic acid and nonanedioic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.26 1,4-Benzenedicarboxylic acid, polymer with 1,4-butanediol, hexanedioic acid and nonanedioic acid (CAS No. 83064–08–8) (provided for in subheading 3907.99.50) Free No change No change On or before 12/31/2020 . 1011. 1,4-Benzenedicarboxylic acid, polymer with 1,4-butanediol, decanedioic acid and hexanedioic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.27 1,4-Benzenedicarboxylic acid, polymer with 1,4-butanediol, decanedioic acid and hexanedioic acid (CAS No. 109586–86–9) (provided for in subheading 3907.99.50) Free No change No change On or before 12/31/2020 . 1012. Polyester resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.28 1,2-Benzenedicarboxylic acid, 3,4,5,6-tetrabromo-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid, 2,2-((1-methylethylidene)bis(4,1-phenyleneoxymethylene))bis(oxirane) and 1,2-propanediol in toluene (CAS No. 68568–64–9) (provided for in subheading 3907.99.50) Free No change No change On or before