of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.87 Ethyl 2-chloro-3-{2-chloro-5-[4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]-4-fluorophenyl}propanoate (Carfentrazone-ethyl) (CAS No. 128639–02–1) (provided for in subheading 2933.99.22) and formulations thereof (provided for in subheading 3808.93.15) Free No change No change On or before 12/31/2020 . 581. ECONEA technical Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.88 4-Bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile (Tralopyril) (CAS No. 122454–29–9) (provided for in subheading 2933.99.22). Free No change No change On or before 12/31/2020 . 582. UV absorber Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.89 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (CAS No. 25973–55–1) (provided for in subheading 2933.99.79) Free No change No change On or before 12/31/2020 . 583. UV absorber Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.90 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (CAS No. 70321–86–7) (provided for in subheading 2933.99.79) Free No change No change On or before 12/31/2020 . 584. Dianil Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.91 2,5-Dichloro-3,6-bis[(9-ethylcarbazol-3-yl)amino]cyclohexa-2,5-diene-1,4-dione (Dianil) (CAS No. 80546–37–8) (provided for in subheading 2933.99.79) Free No change No change On or before 12/31/2020 . 585. NORBLOC 7966 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.06.92 2-[3-(2H-Benzotriazol-2-yl)-4-hydroxyphenyl]ethyl methacrylate (CAS No. 96478–09–0) (provided for in subheading 2933.99.79) Free No change No change On or before 12/31/2020 . 586. Hydro Subchapter II of chapter 99 is amended by inserting in