acetate (Fluthiacet-methyl technical)(CAS No. 117337–19–6) (provided for in subheading 2934.99.15) Free No change No change On or before 12/31/2020 . 622. Flumioxazin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.30 2-[7-Fluoro-3-oxo-4-(2-propyn-1-yl)-3,4-dihydro-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione (Flumioxazin) (CAS No. 103361–09–7) (provided for in subheading 2934.99.15) 6.2% No change No change On or before 12/31/2020 . 623. Buprofezin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.31 (2Z)-3-Isopropyl-2-[(2-methyl-2-propanyl)imino]-5-phenyl-1,3,5-thiadiazinan-4-one (Buprofezin) (CAS No. 69327–76–0 or 953030–84–7) (provided for in subheading 2934.99.16) 1.5% No change No change On or before 12/31/2020 . 624. Flupyradifurone Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.32 4-{[(6-Chloro-3-pyridinyl)methyl](2,2-difluoroethyl)amino}-2(5H)-furanone (Flupyradifurone) (CAS No. 951659–40–8) (provided for in subheading 2934.99.16) Free No change No change On or before 12/31/2020 . 625. Fluralaner (AH252723) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.33 4-[5-(3,5-Dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-methyl-N-{2-oxo-2-[(2,2,2-trifluoroethyl)amino]ethyl}benzamide (Fluralaner) (CAS No. 864731–61–3) (provided in subheading 2934.99.16) Free No change No change On or before 12/31/2020 . 626. OBPA Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.34 10,10'-Oxybis(10H-phenoxarsinine) (CAS No. 58–36–6) (provided for in subheading 2934.99.18) Free No change No change On or before 12/31/2020 . 627. Etoxazole Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.07.35