The probe, announced by the office of Jamieson Greer, will examine whether countries maintain “structural excess capacity” in manufacturing through subsidies, suppressed wages or other policies that could distort trade. If violations are found, Washington could impose punitive measures such as tariffs.
The investigation has been initiated under Section 301 of the US Trade Act of 1974, a powerful trade enforcement tool that allows the United States to act against foreign policies it considers harmful to American commerce.
Also read: US launches ‘unfair’ trade probe into India & 15 other countries
Here is an explainer on what Section 301 is, how it works, and why it matters for India and other trading partners.
What is Section 301?
Section 301 refers to Sections 301–310 of the Trade Act of 1974, a US law titled “Relief from Unfair Trade Practices.”
The provision gives the office of the Office of the United States Trade Representative (USTR) authority to investigate foreign trade practices and take action if they are deemed to violate trade agreements or unfairly restrict American commerce.
The law allows the USTR to
- Initiate investigations on its own or based on complaints
- Examine foreign government policies affecting trade
- Impose remedies such as tariffs or other restrictions
- In effect, Section 301 is Washington’s primary legal tool for responding to what it considers unfair trade behaviour by other countries.
Why has the US launched a new Section 301 probe?
The new investigation follows a major legal setback for Trump’s tariff policy.
In February, the Supreme Court of the United States struck down a key part of Trump’s global tariff programme that had been imposed under emergency powers. In response, the administration imposed temporary tariffs and began exploring alternative legal tools to sustain trade pressure.
Under the newly launched Section 301 probe, the United States is examining excess industrial capacity among 16 economies.
These include
- China
- European Union
- India
- Japan
- South Korea
- Mexico
Other economies under scrutiny include Taiwan, Vietnam, Thailand, Malaysia, Cambodia, Singapore, Indonesia, Bangladesh, Switzerland and Norway.
Explaining the rationale for the investigation, Greer said:
“So these investigations will focus on economies that we have evidence appear to exhibit structural excess capacity and production in various manufacturing sectors, such as through larger persistent trade surpluses or underutilised or unused capacity.”
The US will review factors such as government subsidies, state-owned enterprise activity, subsidised lending, currency practices, and labour or environmental standards.
How do Section 301 investigations work?
Investigations are typically conducted by a Section 301 committee under the USTR.
The process generally involves:
- Initiation of a probe by the USTR
- Consultations with the foreign government concerned
- Public comments and hearings
- Review and recommendation by the committee
For the current investigation, public comments will be accepted until April 15, and a hearing is expected around May 5.
In cases that do not directly involve violations of a trade agreement, the USTR usually completes its determination within 12 months of launching the investigation.
What happens if violations are found?
If the USTR concludes that a foreign government’s policy is “unjustifiable” and burdens or restricts US commerce, the law requires the United States to take action.
If the policy is considered “unreasonable or discriminatory”, the decision to act is discretionary.
Possible actions include
- Imposing tariffs or import restrictions
- Suspending trade concessions granted under agreements
- Negotiating binding agreements requiring policy changes or compensation
- These measures can significantly affect bilateral trade flows and supply chains.
Has the US used Section 301 before?
Yes. Section 301 has been used repeatedly by Washington to challenge foreign trade practices.
After the creation of the World Trade Organization (WTO) in 1995, the United States mostly used the provision to build cases and pursue dispute settlement through the WTO.
However, during Trump’s first term, the US used Section 301 more aggressively.
The most notable example came in 2018, when the USTR imposed tariffs of up to 25% on about $370 billion of Chinese imports after a probe into Beijing’s policies on technology transfer, intellectual property and innovation.
The US also imposed tariffs on imports from the European Union in 2020 linked to a WTO dispute over aircraft subsidies, though these were later suspended.
Is Section 301 compatible with global trade rules?
The legality of Section 301 has been debated internationally.
In 1998, the European Union challenged the provision at the WTO, arguing that unilateral trade sanctions could bypass the global dispute settlement system. Countries including India, Brazil, China, Japan and Canada joined the case as third parties.
A WTO dispute panel eventually ruled that the commitments made by the US were sufficient to avoid a violation of WTO rules, concluding that key provisions of the law were not inconsistent with global trade obligations.
Why the new probe matters for India
For India, inclusion in the new investigation signals renewed scrutiny of its industrial and trade policies by Washington.
If the probe concludes that certain practices distort trade, the US could impose tariffs or other restrictions on Indian exports to the American market. The United States remains one of India’s largest trading partners, meaning any punitive measures could have implications for sectors such as manufacturing and exports.
At the same time, Section 301 probes often lead to negotiations, meaning countries under scrutiny may seek diplomatic or policy solutions before tariffs are imposed.