9902.14.71 - Catalytic converter needled blanket mats of ceramic fibers, containing over 65 percent by weight of aluminum oxide and not over 3 percent by weight of acrylic latex organic binder, of a basis weight less than 1745 g/m2, measuring 5.0 mm or more but not over 9.9 mm in thickness; presented in bulk, sheets or rolls, designed for use in motor vehicles of heading 8703 (provided for in subheading 6806.10.00).

This HTS code, 9902.14.71, pertains to a highly specific type of catalytic converter material: needled blanket mats manufactured from ceramic fibers. The defining characteristics include a high aluminum oxide content (over 65% by weight) and a minimal acrylic latex organic binder (not exceeding 3% by weight). Furthermore, these mats must meet precise physical specifications, with a basis weight less than 1745 g/m² and a thickness ranging from 5.0 mm to 9.9 mm. The classification also specifies that these materials are presented in bulk, sheets, or rolls, and are specifically designed for integration into motor vehicles classified under heading 8703.

Within the broader context of Chapter 99, which houses temporary legislation and special provisions, this classification stands apart due to its focus on a specific component crucial for emissions control in certain vehicles. While sibling categories in other chapters might cover raw materials or finished automotive parts, 9902.14.71 targets a semi-finished, high-performance ceramic fiber product with a defined composition and physical attributes, intended for a particular application within the automotive sector. Its inclusion in Chapter 99 signifies special treatment or conditions, often related to trade agreements or specific import regulations beyond the standard classification of goods.

As a leaf node, HTS code 9902.14.71 does not have further subdivisions. Its detailed description encompasses all the critical criteria for classification, leaving no room for further breakdown under this specific code. Therefore, classification within this category relies entirely on meeting all the stipulated requirements regarding material composition, physical dimensions, and intended use in motor vehicles of heading 8703, as outlined in the provided description.