Women's & Girls' Woven Manmade Fiber Blouses, Shirts & Shirt-Blouses

The classification depends on which fiber predominates by weight. If polyester (a synthetic fiber) is the chief weight, the blouse classifies as a synthetic-fiber garment within the manmade-fiber lines. If rayon (an artificial fiber) predominates, it still falls under heading 620640 as a manmade-fiber blouse, but in the artificial-fiber-specific lines. The wool, silk, and flax thresholds must also be checked against the full fiber composition before selecting the 10-digit line.

Line 6206402000 covers women's and girls' manmade-fiber blouses containing more than 30% silk by weight — a construction common in luxury-positioned synthetic-silk blends. Blouses below that silk threshold are classified in the standard MMF lines based on wool content and weave type. Importers should obtain fiber-content certifications from the mill to confirm whether the silk component crosses this threshold.