9902.13.04 - Acrylic filament tow containing 85 percent or more by weight of acrylonitrile units and 2 percent or more but not more than 8 percent of water, dyed, such tow with a decitex of 5.0 to 5.6, an aggregate filament measure in the tow bundle between 660,000 and 1,200,000 and a length greater than 2 m (provided for in subheading 5501.30.00)

This HTS category, 9902.13.04, covers a very specific type of acrylic filament tow. The primary defining characteristics are its material composition, specifically containing 85% or more acrylonitrile units, and a precise water content ranging from 2% to 8% by weight. Furthermore, the tow must be dyed and meet stringent physical specifications: a decitex of 5.0 to 5.6, an aggregate filament measure within the tow bundle between 660,000 and 1,200,000, and a length exceeding 2 meters. This classification is reserved for such specialized acrylic tow, intended for specific industrial or manufacturing applications where these precise parameters are critical.

This specialized category is found within Chapter 99, which deals with temporary legislation and modifications, including those enacted under trade agreements and Section 22 of the Agricultural Adjustment Act. Unlike the primary HTS headings which classify goods based on their intrinsic nature and primary function, Chapter 99 codes often represent temporary measures that can affect duty rates or introduce import restrictions for specific goods, sometimes linked to agricultural or trade policy objectives. Therefore, while the underlying material is acrylic tow, its classification here signifies a unique trade policy application rather than a standard product description.

As a leaf node, HTS code 9902.13.04 does not have further subcategories. This indicates that all goods meeting the detailed specifications described are classified directly under this provision. The extensive technical criteria provided in the description are the sole determinants for inclusion, and there are no subdivisions to differentiate based on lesser variations in quality, end-use, or processing. Importers must ensure their acrylic filament tow precisely matches all listed physical and compositional attributes to be correctly classified under this temporary provision.