sequence the following new heading: 9902.13.38 Acrylic staple fibers, 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, dyed, with an average decitex of 5.0 to 5.6 (provided for in subheading 5506.30.00) Free No change No change On or before 12/31/2020 . 1221. Rayon top Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.39 Staple fibers of rayon, carded, combed or otherwise processed for spinning, the foregoing presented in the form of top (provided for in subheading 5507.00.00) Free No change No change On or before 12/31/2020 . 1222. Woven fabrics of certain sythetic fibers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.40 Woven fabrics of synthetic staple fibers, containing 85 percent or more by weight of polyvinyl alcohol staple fibers and up to 15 percent of polynosic rayon fibers (provided for in subheading 5512.99.00) Free No change No change On or before 12/31/2020 . 1223. Heavy weight fabric of modal/cotton blend Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.41 Woven fabrics of modal staple rayon fibers, containing over 50 percent but less than 85 percent by weight of such fibers, dyed, mixed mainly or solely with cotton, such fabrics weighing more than 270 g/m 2 but not more than 340 g/m 2 , of yarns of number 42 or lower number, of a thread count of 150 to 160 per cm 2 , napped (provided for in subheading 5516.42.00) Free No change No change On or before 12/31/2020 . 1224. Hand-tufted wool carpets Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.42 Carpets and other textile floor coverings, tufted, whether or not made up, of wool or fine animal hair, hand-hooked, that is, in which the tufts were inserted by hand