6401.92.90.30 - Work footwear

This HTS classification, 6401.92.90.30, specifically designates "Work footwear" that is waterproof and constructed with outer soles and uppers made from rubber or plastics. A key defining characteristic of footwear within this code is that the uppers are not permanently attached to the sole through processes such as stitching, riveting, nailing, screwing, plugging, or similar assembly methods. This implies construction techniques like molding or vulcanization where the sole and upper are integrated without traditional fastening.

While this category is a sub-division of "Other footwear" within the broader "Covering the ankle but not covering the knee" grouping, its sibling, 6401.92.90.60, also falls under "Other." The distinction for 6401.92.90.30 lies in its intended *purpose*. This specific sub-classification is reserved for footwear designed and manufactured for occupational or industrial use, commonly referred to as "work footwear." This differentiates it from general-purpose waterproof footwear that might share similar construction but is not specifically intended for demanding work environments.

As this classification represents a leaf node within the HTS structure, there are no further subcategories to introduce. Therefore, the focus for accurate classification under 6401.92.90.30 is on confirming that the footwear meets all the criteria of the parent headings (waterproof, rubber/plastic uppers and soles, specific assembly methods) and is unequivocally designed and marketed for work-related activities. Examples include protective boots for construction, agricultural, or industrial settings.