Line 6206302000 covers women's and girls' cotton blouses containing more than 36% flax fibers by weight — a linen-cotton blend construction. Blouses below that flax threshold are classified in the standard cotton lines. Because linen-cotton blends are commercially common, importers should obtain fiber-content test reports to confirm whether the flax content crosses the 36% threshold.

Line 6206303003 is reserved for blouses made from compact-spun cotton yarn, a higher-quality spinning process that produces a denser, smoother yarn with less surface fuzz than conventional ring-spun cotton. Importers claiming this line should be prepared to provide mill documentation or yarn specifications confirming the compact-spinning process, as CBP may request technical evidence to support the classification.