False Claims Act Enforcement to Face New Challenges in 2026

July 8, 2025

In a significant legal development affecting the import industry, the Ninth Circuit Court of Appeals has delivered a decisive ruling against an importer in a False Claims Act case, specifically targeting the deliberate evasion of antidumping duties. The ruling sends a stark warning to importers across the United States about the severe financial consequences of duty avoidance strategies.

The court’s decision represents the latest chapter in the government’s intensified efforts to enforce trade remedy laws and crack down on importers who attempt to circumvent legally imposed duties. Antidumping duties, which are designed to protect domestic industries from unfairly priced foreign imports, have become a focal point of U.S. trade enforcement in recent years.

According to trade law experts, the Ninth Circuit ruling establishes a precedent that substantially raises the stakes for importers. Under the False Claims Act, companies found liable not only face repayment of the evaded duties but can also be subject to treble damages and significant penalties per violation. This multiplication of damages can transform what might have seemed like modest duty savings into potentially business-ending liabilities.

“This decision fundamentally changes the risk calculation for importers,” explains Dr. Sarah Reynolds, professor of international trade law at Georgetown University. “The court is sending a clear message that knowledge of duty obligations cannot be strategically avoided, and that willful blindness will be treated as actual knowledge under the law.”

The case highlights a growing trend of using the False Claims Act as a powerful enforcement mechanism in customs matters. Originally enacted during the Civil War to combat fraud against the government, the Act has increasingly become a tool for addressing customs violations, particularly as tariff rates have climbed under recent administrations.

For businesses involved in global supply chains, the ruling creates a heightened compliance challenge. Importers must now demonstrate not only that they have paid the correct duties but also that they have conducted reasonable due diligence regarding the origin, valuation, and classification of their goods. This requirement comes at a time when many industries are already struggling with complex and shifting tariff landscapes resulting from ongoing trade tensions with China and other major U.S. trading partners.

The Commerce Department has expanded its antidumping and countervailing duty orders in recent years, covering goods ranging from steel products and aluminum extrusions to chemicals, solar panels, and various consumer goods. These orders often impose duties exceeding 100% of the goods’ value, creating powerful economic incentives for evasion schemes.

Trade attorneys note that the Ninth Circuit’s ruling particularly addresses “knowing avoidance” – a legal standard that doesn’t require prosecutors to prove an importer had actual knowledge of duty evasion. Instead, deliberate ignorance or willful blindness to obvious facts can be sufficient for liability.

“The court is effectively saying that importers can’t hide behind intentional ignorance,” notes Marcus Chen, partner at a prominent customs and international trade law firm. “If you should have known about a duty obligation and took steps to avoid learning about it, you can be held just as liable as if you knowingly violated the law.”

Industry associations representing importers have expressed concern about the ruling, pointing to the challenges of navigating increasingly complex tariff regulations, particularly for smaller businesses without substantial compliance resources.

For U.S. manufacturers who compete with imported goods, however, the decision represents a welcome enforcement action that levels the playing field. Domestic industries have long complained that duty evasion gives foreign producers an unfair advantage in the American market.

The ruling comes amid broader efforts by Customs and Border Protection to enhance enforcement capabilities, including expanded data analytics to identify suspicious import patterns and potential duty evasion schemes.

Importers are now advised to review their compliance programs, supply chain documentation, and due diligence practices to ensure they can demonstrate reasonable care in determining their customs obligations. The financial consequences of failing to do so have never been clearer.