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)

This HTS category, 9902.13.31, specifically designates artificial staple fibers derived from viscose rayon. Key defining characteristics include their unprocessed state for spinning, meaning they are not carded, combed, or otherwise prepared for yarn production. Furthermore, these fibers must contain between 28% and 33% by weight of silica. The physical dimensions are also critical for classification: they must measure exactly 5.0 decitex and have a length of 60 mm. This precise specification is a crucial determinant for inclusion within this provision, which is temporarily in effect under Section XXII of the Harmonized Tariff Schedule.

Distinguishing this category from its sibling entries within Chapter 99 requires a focus on the highly specific material composition and physical attributes. While other Chapter 99 provisions might address temporary modifications or restrictions on various goods, 9902.13.31 is uniquely focused on a particular type of synthetic fiber with a defined silica content and dimensional specifications. The underlying material (viscose rayon) and its particular processing stage and chemical enrichment set it apart from broader categories of fibers or other chemical products that might be temporarily controlled.

As this node represents a leaf node within the HTS database, there are no further subcategories to explore. Classification under 9902.13.31 is therefore definitive based on the detailed description provided. Importers must confirm that the artificial staple fibers meet all stated criteria, including the percentage of silica by weight, the decitex measurement, and the staple length, to ensure accurate customs declaration and compliance with temporary trade regulations.