is amended by inserting in numerical sequence the following new heading: 9902.05.93 [(3,5,6-Trichloro-2-pyridinyl)oxy]acetic acid (Triclopyr) (CAS No. 55335–06–3) (provided for in subheading 2933.39.25) Free No change No change On or before 12/31/2020 . 488. Fluroxpyr technical Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.94 2-Octanyl [(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetate (Fluroxypyr-meptyl) (CAS No. 81406–37–3) (provided for in subheading 2933.39.25) 1.6% No change No change On or before 12/31/2020 . 489. Arylex technical herbicide Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.95 Methyl 4-amino-3-chloro-6- (4-chloro-2-fluoro-3- methoxyphenyl)-2-pyridinecarboxylate (Halauxifen-methyl) (CAS No. 943831–98–9) (provided for in subheading 2933.39.25) Free No change No change On or before 12/31/2020 . 490. Mepiquat chloride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.96 1,1-Dimethylpiperidinium chloride (Mepiquat chloride) (CAS No. 24307–26–4) (provided for in subheading 2933.39.27) Free No change No change On or before 12/31/2020 . 491. Imidacloprid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.97 N-[1-[(6-Chloropyridin-3-yl)methyl]-4,5-dihydroimidazol-2-yl]nitramide (Imidacloprid) (CAS No. 138261–41–3) (provided for in subheading 2933.39.27) 4.9% No change No change On or before 12/31/2020 . 492. Saltidin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.98 1-Methylpropyl 2-(2-hydroxyethyl)piperidine-1-carboxylate (CAS No.119515–38–7) (provided for in subheading 2933.39.27) Free No change No change On or before 12/31/2020 . 493. Acetamiprid technical Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.05.99