US Launches Section 301 Probe into India, 15 Other Nations

US Initiates Sweeping Trade Investigation

The United States Trade Representative (USTR) announced on March 11, 2026, the launch of a significant trade investigation into the industrial practices of 16 economies, including India. The probe, initiated under Section 301 of the Trade Act of 1974, targets what Washington describes as 'structural excess capacity and production' in key manufacturing sectors. This move signals a strategic shift in US trade policy and could lead to new tariffs if the targeted countries are found to have policies that burden or restrict US commerce.

Context: A Response to a Legal Setback

The investigation follows a major legal defeat for the Trump administration. On February 20, 2026, the US Supreme Court invalidated the legal foundation for the country-specific 'reciprocal tariffs' that had been a cornerstone of its trade strategy. In response, the administration immediately imposed a temporary, blanket 10% tariff on all imports for 150 days under Section 122 of the Trade Act. The new Section 301 investigations are widely seen as an effort to build a more legally sound basis for applying tariff pressure once the temporary surcharge expires in July.

Scope of the Section 301 Probe

The USTR's investigation is extensive, covering a wide range of economies and sectors. Besides India, the probe includes China, the European Union, Japan, South Korea, Mexico, Taiwan, Vietnam, and eight other nations. The sectors under scrutiny are critical to global supply chains, including steel, aluminium, automobiles, batteries, electronics, chemicals, machinery, semiconductors, and solar modules. USTR Jamieson Greer stated the investigation will focus on economies that exhibit signs of structural excess capacity, such as persistent trade surpluses or significant underutilized production capabilities.

The Core Allegation: Excess Capacity

The central argument from the US is that these 16 economies have developed manufacturing capacity that is disconnected from market demand. According to the USTR, this overproduction displaces American domestic production and discourages investment in US manufacturing. The investigation will examine whether policies like industrial subsidies, state-supported expansion, market-access barriers, and currency practices have contributed to this global overcapacity, thereby harming American industries and workers.

Investigation Timeline and Process

The USTR has outlined a clear, multi-stage process for the investigation, allowing for public and governmental input before any final decisions are made. This structured approach is a key difference from the previous reciprocal tariff system.

Following the hearings, there will be a period for rebuttal comments. The USTR will also hold direct consultations with the governments of the 16 economies under investigation. Only after this entire process is complete will the USTR publish its findings and determine if retaliatory actions are warranted.

Potential Impact on India

For India, the investigation introduces new uncertainty into its trade relationship with the US. The Engineering Export Promotion Council of India (EEPC) Chairman, Pankaj Chadha, noted that the engineering sector is already facing challenges, and this probe adds to them. He suggested the move might be a tactic to impose new tariffs after the current 10% global tariff expires and to gain leverage in ongoing trade negotiations.

Ajay Srivastava, founder of the think tank GTRI, pointed out that the USTR notice specifically raises concerns about India's expanding capacity in solar modules, petrochemicals, and steel. He observed that while Section 301 is a powerful tool, it is slower and more legally constrained than the previous tariff regime, requiring concrete evidence of harm tied to specific trade practices.

Navigating Existing Trade Agreements

The investigation complicates matters for countries that recently negotiated trade arrangements with the US. India, for instance, signed a joint statement with the US on February 6, 2026, committing to tariff reductions and purchasing over $100 billion in US products. It remains unclear whether such existing agreements will offer any protection from potential tariffs resulting from this new probe. USTR Greer did not clarify this point, emphasizing President Trump's commitment to protecting US manufacturing.

A Broader Trade Enforcement Strategy

In addition to the probe on excess capacity, the USTR also announced its intent to launch a separate Section 301 investigation into whether countries are effectively banning imports of goods made with forced labor. This suggests a broader and more aggressive trade enforcement posture from Washington, aiming to address multiple fronts of what it considers unfair global trade practices.

Conclusion: An Uncertain Path Forward

The launch of these Section 301 investigations marks a pivotal moment in global trade relations. By shifting its strategy from broad, unilateral tariffs to a more formal, evidence-based process, the US is attempting to rebuild its leverage. For India and the other 15 economies, the coming months will involve intense scrutiny and negotiation. The outcome could range from negotiated settlements to the imposition of targeted tariffs, reshaping supply chains and international trade dynamics.