Section 301 Tariffs Are Here To Stay: Supreme Court Declines to Hear Appeal

Published July 1, 2026

Key Points

• On June 15, 2026, the U.S. Supreme Court declined to hear an appeal challenging the legality of Section 301 tariffs on Chinese imports.
• The decision leaves lower court rulings upholding the tariffs in place, ending years of litigation.
• This means Section 301 tariffs are now on solid legal footing.
• CBP is expected to increase scrutiny of classification and valuation practices.

T​​​​​​​​​​​​​​​​he Supreme Court’s June 15, 2026 decision not to hear a challenge to Section 301 tariffs confirms the duties will remain in effect for the foreseeable future. While the Court issued no ruling on the merits, its action leaves standing the lower court rulings that upheld the tariffs, closing out years of litigation. For importers, this provides certainty: Section 301 tariffs are now a long-term component of the importing environment.

What It Means for Importers

Importers should focus less on the possibility of refunds and more on managing duty exposure going forward.

Here are some recommended actions:

• Verify classification accuracy — ensure products are properly classified.
• Confirm customs valuation — ensure customs values are accurately declared.
• Document country-of-origin determinations — keep records well documented.
• Evaluate duty-saving options — assess duty drawback, applicable free trade agreements, and supply chain adjustments.
• Conduct regular compliance reviews — identify errors, reduce risk, and ensure duties are paid correctly.

With CBP continuing to increase its focus on trade enforcement, importers should expect greater scrutiny of classification and valuation practices. Going forward, tariff compliance and duty optimization should be a key part of overall import strategy.

This information is provided for general informational purposes only and does not constitute legal, customs, or trade advice. It should not be relied upon as a substitute for consultation with qualified counsel or a licensed customs broker regarding specific facts and circumstances

How GHY Can Help?

GHY specializes in helping businesses navigate and reduce the impacts of tariffs through strategic solutions tailored to their needs. Our experts can audit your supply chain to identify inefficiencies, uncover cost-saving opportunities, and ensure compliance with evolving trade regulations. We also employ tariff engineering techniques to optimize product classification and sourcing strategies, minimizing duty exposure and maximizing profitability.

By partnering with GHY, your business gains access to the tools and expertise needed to streamline operations and stay competitive in a challenging trade environment.

Contact Us Today! Booking a Meeting, email consult@ghy.com, or call +1 (800) 667-0771.