The key test is whether the material retains the essential character of a manufactured article or has been rendered fit only for recovery of the metal. Scrap typically shows evidence of use, damage, or processing that makes it unsuitable for its original purpose. When the line is unclear, a binding ruling from CBP can provide certainty before shipment.

Section 232 measures apply to aluminum imports broadly, including scrap. The applicability and any country-specific exemptions depend on the origin and the specific tariff line, so importers should verify current proclamation language and any exclusions with a licensed customs broker.