sequence the following new heading: 9902.13.28 Viscose rayon staple fibers having a decitex of less than 5.0 and a trilobal multi-limbed cross-section, the limbs having a length-to-width aspect ratio of at least 2:1, suitable for use in producing goods of heading 9619 (provided for in subheading 5504.10.00) 0.9% No change No change On or before 12/31/2020 . 1211. Flame retardant viscose rayon staple fiber with a decitex of 4.7 and a length of 60mm Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.29 Artificial staple fibers of viscose rayon, not carded, combed or otherwise processed for spinning, such fibers containing between 28 percent and 33 percent by weight of silica, measuring 4.7 decitex in lengths of 60 mm (provided for in subheading 5504.10.00) Free No change No change On or before 12/31/2020 . 1212. Flame retardant viscose rayon staple fiber with a decitex of 3.3 and a length of 60mm Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.30 Artificial staple fibers of viscose rayon, not carded, combed or otherwise processed for spinning, such fibers containing between 28 percent to 33 percent by weight of silica, measuring 3.3 decitex, in lengths of 60 mm (provided for in subheading 5504.10.00) Free No change No change On or before 12/31/2020 . 1213. Flame retardant viscose rayon staple fiber with a decitex of 5.0 and a length of 60mm Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.13.31 Artificial staple fibers, not carded, combed or otherwise processed for spinning, of viscose rayon, containing between 28 percent and 33 percent by weight of silica, measuring 5.0 decitex in lengths of 60 mm (provided for in subheading 5504.10.00) Free No change No change On or before 12/31/2020 . 1214. Flame retardant viscose rayon staple fiber with a decitex of 2.2 and a length of 38mm Subchapter II of chapter 99 is amended by inserting in numerical