Navigating Section 232 Tariffs: Mill Certificates, Origin Verification, and Compliance

Read the full blog post: https://vigilantgts.com/prove-origin-prevent-costly-tariffs-hb/

Importing steel, aluminum, or copper without airtight documentation can trigger steep Section 232 tariffs—often a default of 200% on aluminum—if you can’t validate country of origin and metal content. U.S. Customs now expects more than a supplier’s statement. Our team explains why mill certificates (MTCs/MTRs) that detail where metal was smelted, poured, and cast are essential for Section 232 tariffs compliance and metals import compliance.While industry debate continues—now before the Court of International Trade—on whether 232 applies to raw metal versus processed forms, one requirement is clear: importers must maintain verifiable mill certifications and be ready to present them on request. To reduce risk, we recommend updating supplier contracts to explicitly require origin documentation, leveraging NDAs where needed, and building a centralized database that links each product to its mill certs, content percentages, and country of origin. These best practices align with how we approach USMCA and other free trade agreements: document, validate, and be audit-ready.Vigilant Global Trade Services helps importers secure mill certs, operationalize origin verification, and respond to CBP inquiries through consulting and managed services. If you need support establishing a defensible Section 232 program—or a partner to obtain and manage documentation—connect with our team to learn more and take the next step toward confident trade compliance.