9902.12.99 - Acrylic filament tow containing 85 percent or more by weight of acrylonitrile units and 2 percent or more but not over 3 percent of water, raw white (undyed), crimped, with an average decitex of 2.2 (plus or minus 10 percent) and an aggregate filament measure in the tow bundle between 660,000 and 1,200,000 decitex, with a length greater than 2 m (provided for in subheading 5501.30.00)

This HTS category, 9902.12.99, pertains to specific temporary legislation provisions related to acrylic filament tow. These goods are characterized by a high acrylonitrile content (85% or more by weight) and a controlled moisture level (2% to 3% by weight). The tow is undyed ("raw white"), crimped, and possesses precise physical parameters: an average decitex of 2.2 (with a 10% tolerance) and an aggregate filament measure within the bundle ranging from 660,000 to 1,200,000 decitex. Crucially, the individual filaments must exceed 2 meters in length. The "provided for in subheading 5501.30.00" note indicates these goods are temporarily classified under Chapter 99, with their permanent classification residing in subheading 5501.30.00, which covers synthetic filament tow.

Chapter 99 of the HTS, where this category resides, is designated for temporary legislation, trade agreement modifications, and import restrictions. Therefore, the primary purpose of classifying goods here is to manage temporary trade policies, such as quotas, duties, or specific import requirements that may differ from the standard tariff treatment. This distinguishes 9902.12.99 from the permanent classification in Section XI (Textiles and Textile Articles), which focuses on the intrinsic nature and use of the goods without the overlay of temporary trade measures.

As this is a leaf node within Chapter 99, there are no further subcategories to introduce. The specificity of this heading highlights the detailed nature of temporary trade provisions. Classification under 9902.12.99 is strictly for acrylic filament tow meeting all the described technical specifications and subject to the specific temporary regulations associated with this code. Importers must ensure their product precisely matches the described characteristics to qualify for this temporary classification.