9902.12.87 - Synthetic (polyvinyl alcohol) filament yarn, untwisted, measuring from 1100 to 1330 decitex (dtex) and consisting of 200 filaments, certified by the importer as having from 6.8 to 8.2 cN/dtex tenacity and with elongation at break from 7.7 to 13.5 percent (provided for in subheading 5402.49.91)

This HTS category, 9902.12.87, pertains to specific types of synthetic filament yarn, namely polyvinyl alcohol (PVA) yarn. The classification hinges on precise technical specifications: the yarn must be untwisted, fall within a decitex (dtex) range of 1100 to 1330, and be composed of exactly 200 filaments. Furthermore, importers must certify that the yarn meets specific performance criteria, including a tenacity between 6.8 and 8.2 centinewtons per decitex (cN/dtex) and an elongation at break ranging from 7.7 to 13.5 percent. This detailed technical profile distinguishes it from general synthetic yarns and aligns it with temporary legislation or special provisions for imports.

As a leaf node within Chapter 99, this specific HTS code does not have further subdivisions. Its placement within Section XXII signifies that it is subject to special classification provisions, likely temporary legislation or modifications proclaimed pursuant to trade agreements, and potentially additional import restrictions under Section 22 of the Agricultural Adjustment Act. While its parent context broadly covers temporary measures and trade agreement legislation, this subcategory narrows the focus to a highly specialized synthetic yarn product, requiring strict adherence to its detailed technical and performance requirements for correct classification and compliance with any applicable import regulations.