Wind Turbines Get a Section 232 Warning Shot: Talks Now, Tariffs Possibly Later

Key Points

• On October 22, 2026, President Trump issued Proclamation 11074, finding under Section 232 of the Trade Expansion Act of 1962 that imports of wind turbines and their parts and components threaten to impair U.S. national security.
• Rather than imposing new tariffs or quotas, Proclamation 11074 directs the Commerce Department and the U.S. Trade Representative to jointly pursue negotiations with trading partners.
• If no agreement on wind turbine imports is reached within 180 days of Proclamation 11074 (on or about April 20, 2027), or an agreement is not carried out or proves ineffective, Section 232 permits the president to take other actions, including tariffs.
• Existing Section 232 tariffs on aluminum, steel, and copper under Proclamations 9704, 9705, and 10962 are unchanged by Proclamation 11074 and continue to apply to wind turbine components within their scope.

On October 22, 2026, the president issued Proclamation 11074 (the Proclamation), finding that imports of wind turbines and their parts and components threaten to impair U.S. national security. For now, the Proclamation directs negotiations with trading partners rather than imposing new tariffs. That gives importers a reprieve, not a resolution: because the national security finding is already in place, tariffs or other import restrictions could follow quickly if the negotiations fall short.

The Proclamation rests on Section 232 of the Trade Expansion Act of 1962 (Section 232), which authorizes the president to adjust imports that threaten national security. In August 2025, the Department of Commerce (Commerce) opened a Section 232 investigation into wind turbine imports. Commerce found that (1) U.S. wind energy relies on imported components, imports of which have grown over the past decade while domestic capacity for products such as blades has not meaningfully increased; (2) imported networked inverters could allow remote control of turbines and disrupt power; (3) turbines create radar “clutter” that affects air traffic control, weather forecasting, homeland security, and defense missions; and (4) wind energy is intermittent and burdens the electrical grid. These findings build on existing measures: As we explained in June 2026, many turbine parts already carry Section 232 duties on their aluminum, steel, or copper content under Proclamation 9704 (aluminum), Proclamation 9705 (steel), and Proclamation 10962 (copper), each as amended (together, the Metals Tariffs). The Proclamation’s operative terms are summarized below.

What Changed

The Proclamation’s operative terms are as follows:

Legal and Business Implications

Timing. The 180-Day Deadline is the key date to watch. Once it passes, the administration can move directly to tariffs or other restrictions if it considers the negotiations unsuccessful.

Supply chain exposure. That risk falls most heavily on developers, original equipment manufacturers, and suppliers that rely on imported blades, nacelles, towers, gearboxes, generators, and inverters. Inverters are singled out on cybersecurity grounds and are already subject to FCC restrictions.

Cost and stacking. In the meantime, the Metals Tariffs keep landed costs elevated, and any future wind-specific tariff could be added on top of them and other duties. Accurate HTSUS classification and metal-content reporting therefore remain essential.

Cross-border and automotive suppliers. The same stacking concern applies to manufacturers that supply metal-intensive parts to both the automotive and energy sectors, including through U.S.-Canada and U.S.-Mexico channels, whose inputs may be exposed under more than one program. Negotiations under the Proclamation may also be folded into broader trade talks, such as the USMCA joint review.

Contracts and transactions. Finally, long-dated engineering, procurement, and construction (EPC) and turbine supply agreements, as well as M&A and financing diligence on wind assets, should account for the possibility that new duties are imposed mid-contract.

Recommended Next Steps

1. Map imported wind turbine parts by country of origin, HTSUS classification, and steel, aluminum, and copper content.
2. Confirm compliance with the Metals Tariffs, including content reporting and duty calculations.
3. Review supply and EPC contracts for change-in-law, tariff allocation, price adjustment, and force majeure provisions, and renegotiate where the risk sits with you.
4. Model costs assuming a wind-specific tariff takes effect after the 180-Day Deadline and evaluate the timing of orders and deliveries accordingly.
5. Assess inverter and control-system sourcing for cybersecurity and origin risk and identify alternative or domestic suppliers.
6. Consider engaging with Commerce, USTR, or trade associations while negotiations are underway.
7. Monitor for the 180-day update and any follow-on proclamation and build tariff risk into diligence on wind projects and suppliers.

For questions about Proclamation 11074 or how it may affect your supply chain, contracts, or transactions, please contact Ryan Last, Daniel Anziska, or another member of Troutman Pepper Locke’s Tariff + Trade Task Force.