; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (218) Fusible bonding and separation yarn Heading 9902.12.88 is amended— (A) by amending the article description to read as follows: Synthetic filament yarn (other than sewing thread) not put up for retail sale, single, with a twist exceeding 50 turns/m, of nylon or other polyamides, measuring 23 or more but not over 840 decitex, each formed from 4 to 68 filaments and containing 10 percent or more by weight of nylon 12 (provided for in subheading 5402.51.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (219) Polyacrylonitrile tow with an average decitex of 2.75 Heading 9902.13.02 is amended— (A) by amending the article description to read as follows: Acrylic filament tow (polyacrylonitrile tow), containing by weight 92 percent or more of polyacrylonitrile, not more than 0.01 percent of zinc and 2 percent or more but not over 8 percent of water, dyed, presented in the form of bundles of crimped product each containing 214,000 filaments (plus or minus 10 percent) with an average decitex of 2.75 (plus or minus 10 percent) and length greater than 2 meters (provided for in subheading 5501.30.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (220) Polyacrylonitrile tow with an average decitex of 3.3 Heading 9902.13.03 is amended— (A) by amending the article description to read as follows: Acrylic filament tow (polyacrylonitrile tow) containing by weight 92 percent or more of polyacrylonitrile, not more than 0.01 percent of zinc and 2 percent or more but not over 8 percent of water, dyed, presented in the form of bundles of crimped product each containing 214,000 filaments (plus or minus 10 percent) with an average decitex of 3.3 (plus or minus 10 percent) and length greater than 2 meters (provided for in subheading 5501.30.00)