6206.10.00.40 - Containing 70 percent or more by weight of silk or silk waste (741)

This HTS category encompasses women's or girls' blouses, shirts, and shirt-blouses that are specifically made from silk or silk waste, where silk or silk waste constitutes 70 percent or more by weight of the textile material. This detailed classification is crucial for goods where the predominant fiber content is silk, distinguishing them from garments made with a lower proportion of silk or other primary fibers.

Within the broader classification of "Of silk or silk waste" for women's or girls' blouses and shirts, this specific subheading, 6206.10.00.40, is differentiated from its sibling, 6206.10.00.50, by its explicit material composition. While both fall under the "Of silk or silk waste" umbrella, 6206.10.00.40 is reserved for garments where the silk content is the primary component, at 70% or more by weight. Subheading 6206.10.00.50, labeled "Other," would therefore apply to silk or silk waste blouses and shirts that do not meet this 70% threshold, or potentially those with mixed fibers where silk is not the dominant material.

As this is a leaf node within the HTS structure, there are no further subcategories to explore. Classification within this specific code relies entirely on meeting the defined criteria of being a women's or girls' blouse, shirt, or shirt-blouse, and containing 70 percent or more by weight of silk or silk waste. Practical application involves verifying the fiber content through laboratory analysis or manufacturer declarations to ensure accurate customs declarations.