6206.30 - Of cotton:

This HTS category, 6206.30, specifically classifies women's or girls' blouses, shirts, and shirt-blouses that are made predominantly of cotton. This classification applies to a wide range of garments for female wear falling under the general description of shirts and blouses, provided their primary textile composition is cotton.

Distinguishing this category from its siblings, 6206.10.00 (of silk), 6206.20 (of wool or fine animal hair), 6206.40 (of man-made fibers), and 6206.90.00 (of other textile materials), is the sole criterion of the principal constituent material. Therefore, any women's or girls' blouse or shirt not made of cotton, even if it shares similar styling or purpose, would be classified under a different subheading based on its material content.

The subcategories for 6206.30 further refine this classification. 6206.30.10.00 specifically covers "Certified hand-loomed and folklore products," indicating a special designation for items meeting particular cultural and production standards. The residual "Other" subcategory encompasses all remaining cotton blouses, shirts, and shirt-blouses that do not qualify for the certified hand-loomed and folklore product designation.