; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (221) Acrylic staple fibers not processed for spinning Heading 9902.13.20 is amended— (A) by amending the article description to read as follows: Acrylic staple fibers (polyacrylonitrile staple), not dyed and not carded, combed or otherwise processed for spinning, 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, with a decitex of 5 to 5.6, with a fiber shrinkage of 0 to 22 percent and with a cut fiber length of 80 mm to 150 mm (provided for in subheading 5503.30.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (222) Modified acrylic flame retardant staple fiber with a decitex of 2.7 Heading 9902.13.21 is amended— (A) by amending the article description to read as follows: Modacrylic staple fibers, not carded, combed or otherwise processed for spinning, containing over 35 percent and less than 85 percent by weight of acrylonitrile, 2.7 decitex (plus or minus 2 percent), natural in color, with fiber length between 38 mm and 120 mm (provided for in subheading 5503.30.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2025 . (223) Acrylic fiber staple, dyed Heading 9902.13.23 is amended— (A) by amending the article description to read as follows: Acrylic staple fiber (polyacrylonitrile staple), dyed, not carded, combed or otherwise processed for spinning, the foregoing 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, with a decitex of 3.3 to 5.6, a fiber shrinkage from 0 to 22 percent (provided for in subheading 5503.30.00)