Answering the Top Seven Questions About Pending Section 301 Deadlines

In March 2026, the Office of the United States Trade Representative (USTR) launched two parallel Section 301 investigations: one targeting manufacturing overcapacity across 16 countries (including China, the EU, Japan, India, Mexico, Vietnam, and other major manufactures), and one targeting forced labor enforcement failures across 60 countries. Here are the top seven questions Crowell & Moring’s International Trade team is getting regarding pending Section 301 comment deadlines from our clients and how to address them:

1. What is happening, and how does it differ from the IEEPA work?

Section 301 tariffs are trade remedies imposed under Section 301 of the Trade Act of 1974, designed to address "unfair" foreign trade practices that burden U.S. commerce. Unlike the International Emergency Economic Powers Act (IEEPA), Section 301 requires USTR to conduct a formal investigation and justification before tariffs may be imposed, and that process gives affected companies a meaningful opportunity to participate and shape the outcome.

2. What is the worst-case scenario?

New Section 301 tariffs imposed on imports in potentially all manufacturing sectors up to 60 countries, on a timeline that could produce determinations by mid-to-late 2026. Once USTR determines that unfair trade practices exist, it may impose tariffs or other trade restrictions on imports from the targeted country to incentivize policy changes. Companies that have not participated in the administrative record will have limited ability to seek exclusions or challenge the outcome.

3. What is the value of filing comments, and can I rely on comments filed by others?

Participating in the administrative investigation process may allow companies to obtain specific product exclusions from any potential tariffs and preserves rights to challenge any tariffs that are ultimately imposed. You should not rely solely on trade association or coalition comments, as these cannot capture your company's specific facts, supply chain structure, or cost exposure. USTR looks for concrete, company-specific evidence that only you can provide, and companies without their own record are in a significantly weaker position to seek relief later.

4. What is my deadline?

April 15, 2026: Both written comments and requests to appear at the public hearing must be submitted by this date for both investigations. Public hearings run April 28–May 1 (Forced Labor) and May 5–8 (Industrial Excess Capacity), with post-hearing rebuttal comments due within seven calendar days of each hearing's conclusion.

Name	Industrial Excess Capacity	Forced Labor
Initiation Date	March 11, 2026	March 12, 2026
Written Comment and Request to Appear at Hearing Deadline	April 15, 2026	April 15, 2026
Public Hearing Start Date	May 5, 2026	April 28, 2026
Public Hearing End Date	May 8, 2026	May 1, 2026
Post-Hearing Rebuttal Deadline	Seven calendar days after last day of public hearings	Seven calendar days after last day of public hearings

5. What is required to file comments?

Comments must identify the submitting company and its interest in proceedings and provide substantive written commentary addressing the relevant investigation. A separate request to appear at the public hearing must also be submitted by April 15 if oral testimony is desired, and companies should plan for post-hearing rebuttal comments as well. No prior filing or registration is required. Any affected importer, manufacturer, or industry group may participate.

6. Who should consider filing?

High-volume importers, downstream manufacturers reliant on imported inputs, companies with limited alternative sourcing options, SMEs facing disproportionate cost impacts, and industry associations seeking broader policy influence should all strongly consider participating. This is especially important for companies sourcing from any of the 16 (Industrial Excess Capacity) or 60 (Forced Labor) targeted countries across the covered sectors. Participation is particularly critical for companies that cannot quickly or feasibly shift their supply chains away from targeted countries.

7. What are the next steps?

• Immediately: Assess your exposure by identifying which products and sourcing countries are implicated by each investigation.
• By April 15: File tailored written comments and, if warranted, a request to appear at the public hearing. Crowell has extensive experience preparing and submitting both.
• After hearings: File post-hearing rebuttal comments within the seven-day window following each hearing's conclusion.
• Ongoing: Consider whether to pursue administrative or judicial challenges, including at the U.S. Court of International Trade (CIT). Participation in the administrative record is a prerequisite for preserving those rights.

Crowell has extensive experience preparing and submitting written comments and requests to appear at public hearings. Contact the International Trade Group for immediate assistance