Recent headlines have focused on the newly announced exclusions for certain Canadian motor vehicles, dairy products, and alcoholic beverages. However, the broader story extends beyond the exclusions themselves.

The September 8 announcement also introduced revisions to previously announced Section 338 tariff measures, altering the scope of products subject to additional duties. While some products were removed from tariff coverage, others were added, creating new considerations for businesses engaged in cross-border trade. These changes are scheduled to take effect on September 15, potentially affecting duty exposure, landed costs, and sourcing decisions across multiple industries.

One particularly important detail for importers is that Section 338 tariffs apply regardless of USMCA origin status and are assessed in addition to existing Section 232 duties. For companies that rely on North American supply chains, this means that eligibility under USMCA does not necessarily shield products from additional tariff impacts.

The developments also highlight the ongoing trade tensions between the United States and Canada. In response to U.S. actions, Canada has implemented counter-tariffs of up to 50% on approximately $27.6 billion worth of U.S. goods. The affected sectors include steel, dairy, appliances, agricultural equipment, pulp and paper products, and electronics, underscoring the far-reaching effects these measures may have on both sides of the border.

As trade policies continue to evolve, businesses should take a proactive approach by reviewing HTS classifications, reassessing landed costs, and evaluating potential impacts on sourcing strategies, supplier relationships, and overall supply chain operations.

The reality for today's global supply chains is clear:

The biggest risk is not disruption itself. It is failing to anticipate policy changes before they impact costs, compliance requirements, and operational planning.

Organizations that maintain visibility into regulatory developments and respond quickly to changing trade conditions will be better positioned to manage risk and preserve competitiveness in an increasingly complex trade environment.

Sources

• White House Section 338 Proclamations (September 8, 2026)
• NCBFAA Trade Update
• U.S. Customs and Border Protection (CBP) Implementation Guidance