9902.13.33 - Artificial staple fibers of viscose rayon, not carded, combed or otherwise processed for spinning, containing between 28 and 33 percent by weight of silica, measuring 4.7 decitex in 51 mm lengths (provided for in subheading 5504.10.00)

This HTS category, 9902.13.33, specifically covers artificial staple fibers of viscose rayon that have not undergone further processing for spinning, such as carding or combing. A key defining characteristic is their composition: they must contain between 28% and 33% by weight of silica. Furthermore, these fibers are precisely defined by their physical dimensions, measuring 4.7 decitex and having a length of 51 millimeters. This entry represents a temporary modification or special provision related to products that would otherwise fall under subheading 5504.10.00.

Unlike the broad range of live animals found in other Chapter 99 provisions or the more general commodity classifications within the HTS, this category is highly specific. Its focus is on a niche textile precursor with precise chemical and physical specifications, indicating a targeted import control or duty treatment. The inclusion within Chapter 99 suggests these fibers are subject to special classification rules, potentially temporary modifications or restrictions, that supersede their standard classification under the Chapters 50-63.

As this is a leaf node in the HTS database, there are no further subcategories. Classification within 9902.13.33 is determined solely by meeting all the stipulated criteria: being artificial staple fibers of viscose rayon, unprocessed for spinning, containing the specified percentage of silica, and possessing the exact decitex and length measurements. Any deviation from these precise specifications would necessitate classification under a different HTS code.