II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.17 Coconut water, not from concentrate, not containing added sugar or other sweetening, certified by the importer as from conventionally grown (non-organic) coconuts, packaged for retail sale in 500 milliliter polyethylene terephthalate bottles (provided for in subheading 2009.89.60) Free No change No change On or before 12/31/2020 . 19. Isododecane (CAS 93685–81–5) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.18 Light oil fractions containing more than 50 percent by weight of isododecane (CAS No. 93685–81–5) (provided for in subheading 2710.12.90) Free No change No change On or before 12/31/2020 . 20. Isohexadecane (CAS No. 93685–80–4) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.19 Medium oil fractions containing more than 50 percent by weight of isohexadecane (CAS No. 93685–80–4) (provided for in subheading 2710.19.90) 1.3% No change No change On or before 12/31/2020 . 21. Sodium Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.20 Sodium, containing more than 200 ppm of calcium (CAS No. 7440–23–5) (provided for in subheading 2805.11.00) 3.2% No change No change On or before 12/31/2020 . 22. Sodium containing not more than 200 ppm of calcium Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.21 Sodium, containing not more than 200 ppm of calcium (CAS No. 7440-23-5) (provided for in subheading 2805.11.00) 1.9% No change No change On or before 12/31/2020 . 23. Nitrosyl sulfuric acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.22 Nitrosylsulfuric acid (CAS. No. 7782–78–7) (provided for in subheading 2811.19.61) Free No change No change On or before 12/31/2020 . 24. Hypophosphorous acid 50% Subchapter II of