Heading 2302 covers residues from sifting, milling, or mechanical working of cereals and legumes — processes aimed at producing flour or meal. The adjacent heading covers residues specifically from starch extraction, such as corn gluten feed and corn gluten meal. If the residue results from wet-milling for starch rather than dry milling for flour, it typically belongs in the starch-residues heading.

Yes, wheat bran is used in both animal feed and human food applications. However, if imported for human food use, it must comply with FDA food-safety requirements, including those for foreign supplier verification under FSMA. The tariff classification under 230230 does not change based on the intended end use.