; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (69) Fluroxypyr technical Heading 9902.05.94 is amended— (A) by striking 1.6% and inserting 4.6% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (70) 2,3-Dichloro-5-(trifluoromethyl)pyridine Heading 9902.06.07 is amended— (A) by striking 2.5% and inserting 5.3% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (71) 2,3- P yridinedicarboxylic acid Heading 9902.06.13 is amended— (A) by striking Free and inserting 2.9% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (72) Food and feed preservative Heading 9902.06.22 is amended— (A) by striking 1.2% and inserting 2.3% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (73) Cloquintocet-mexyl Heading 9902.06.24 is amended— (A) by striking 4.2% and inserting Free ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (74) Cyprodinil technical Heading 9902.06.31 is amended— (A) by striking Free and inserting 3.2% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (75) Aminocyclopyrachlor Heading 9902.06.37 is amended— (A) by striking Free and inserting 3.9% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (76) DMDS Heading 9902.06.45 is amended— (A) by striking 1% and inserting Free ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (77) Metribuzin Heading 9902.06.51 is amended— (A) by striking 1.9% and inserting 3.2% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (78) Atrazine Heading 9902.06.54 is amended— (A) by striking Free and inserting 2.7% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (79) 1,2,4- T riazole Heading 9902.06.97 is amended— (A) by striking 2.8% and inserting 5.2% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (80) Oxadiazon Heading 9902.07.13 is amended— (A) by striking 1.3% and inserting 3.7% ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (81) Fludioxonil technical Heading 9902.07.15 is amended— (A) by striking 5% and inserting 4.7%