Flour and malt products are classified under Chapter 11 of the Harmonized Tariff Schedule, which covers products of the milling industry. Specific 10-digit HTS lines distinguish the grain type, processing degree, and intended use, and some lines are subject to tariff-rate quota treatment. Consulting a licensed customs broker is advisable to confirm the correct classification.

FDA has jurisdiction over imported flour and malt as human food ingredients; shipments are subject to prior notice requirements and may be detained for examination. Facilities producing these goods for US import must also be registered with FDA under the Bioterrorism Act provisions.