New Delhi, Mar 12 (PTI) The US Trade Representative (USTR) on March 11 said it has launched a fresh round of Section 301 trade investigations targeting policies and industrial practices of 16 economies, including India and China.

Following a decision of the US Supreme Court striking down sweeping tariffs of the Trump administration, US President Donald Trump has announced 10 per cent tariffs on all countries for 150 days from February 24.

Now, initiation of this probe marks a significant escalation in trade scrutiny. Here are a few questions and answers to understand the issue.

WHAT IS THIS INVESTIGATION? ----------------------------------- The United States Trade Representative (USTR) has announced that it has initiated investigations against its trading partners, including India, China, Japan, and the European Union (EU), to look into and address unfair foreign practices that are adversely affecting American manufacturing.

The probe targets policies and industrial practices of 16 economies.

The probe covers sectors, including steel, aluminum, automobiles, batteries, electronics, chemicals, machinery, semiconductors, and solar modules.

WHICH 16 ECONOMIES ARE COVERED UNDER THE PROBE? --------------------------------------------------------------- There are 15 countries and the 27-nation EU bloc. The nations are China, Singapore, Switzerland, Norway, Indonesia, Malaysia, Cambodia, Thailand, South Korea, Vietnam, Taiwan, Bangladesh, Mexico, Japan, and India.

WHY THIS PROBE? -------------------- After the US Supreme Court struck down tariffs imposed by the Trump administration. On February 20, Trump signed a proclamation to impose a temporary import duty of 10 per cent on all countries to replace the tariffs invalidated by the Court. After that, the President had stated that the US has other alternatives to impose such levies.

On February 20, a White House Fact Sheet stated that the President has directed the Office of the USR to use its Section 301 authority to investigate certain unreasonable and discriminatory acts, policies, and practices that burden or restrict US commerce.

WHAT IS THE INVESTIGATION PROCESS? --------------------------------------------- Under Section 301 of the US Trade Act of 1974, the US government may investigate whether foreign trade practices are unreasonable or discriminatory and harm American commerce.

The investigations will determine whether those acts, policies, and practices are unreasonable or discriminatory and burden or restrict US commerce.

"The probe will examine whether policies such as industrial subsidies, state-supported manufacturing expansion, activities of state-owned enterprises, market-access barriers, currency practices or suppressed domestic demand have contributed to global manufacturing overcapacity that burdens US commerce, think tank GTRI said.

If such practices are confirmed, Washington may impose retaliatory trade measures, including additional tariffs, quantitative restrictions or other trade barriers.

According to the GTRI, as per a defined process, public dockets for written submissions will open on March 17, allowing companies, trade groups and governments to submit their comments on the probe.

Written submissions and requests to participate in hearings must be filed by April 15. Public hearings will take place from May 5-8 at the US International Trade Commission in Washington. Rebuttal submissions must be filed within seven days after the hearings conclude. After consultations with the governments concerned, the USTR will determine whether the practices under investigation warrant retaliatory action.

WHAT DOES THIS MEAN FOR INDIA? ---------------------------------------- The Global Trade Research Initiative (GTRI) stated that the US investigation identifies several sectors in India where structural excess capacity or export surpluses may exist. These include solar modules, petrochemicals, steel, textiles, health-related goods, construction materials and automotive products.

According to the US notice, India's solar-module manufacturing capacity is already nearly three times domestic demand, suggesting the possibility of export-driven production surpluses. Similar concerns are raised about expanding capacity in petrochemicals and steel, GTRI Founder Ajay Srivastava said.

Apex exporters' body FIEO said the investigation seems largely aimed at addressing global concerns around structural overcapacity in manufacturing.

"India's export growth is largely demand-driven and diversified, so we do not see any immediate concern, though the situation will need to be watched," FIEO Director General Ajay Sahai said.

WHICH ALL LAWS IS THE US USING TO IMPOSE TARIFFS? ---------------------------------------------------------------- International Emergency Economic Powers Act (IEEPA) 1977: Trump in February 2025 invoked this to impose tariffs. The court on February 20 this year ruled that Trump can not use this to impose tariffs.

Section 122 of the Trade Act of 1974: On February 20, 2026, Trump invoked this to impose 10 per cent tariffs on all countries for 150 days. The US President can increase the tariffs to 15 per cent.

Section 232 of the Trade Expansion Act of 1962: Trump has imposed sector-specific tariffs (certain steel and aluminium products and auto components) under this. It allows trade restrictions on national-security grounds.

The US can potentially use it to include additional sectors, GTRI said.

Section 301 of the Trade Act of 1974: It is designed to address unfair foreign practices affecting US commerce. It can be used to respond to unjustifiable, unreasonable, or discriminatory foreign government practices that burden or restrict US commerce.

"Section 301 remains an important US trade tool, it is slower and more legally constrained than the reciprocal tariff system invalidated by the Supreme Court. Section 301 investigations require evidence of harm and must be tied to specific trade practices," GTRI said.

Section 302(b) of the Trade Act of 1974: Under this, the USTR can self-initiate an investigation under Section 301. PTI RR TRB

Section 301 investigations target foreign industrial policies, enabling potential retaliatory trade measures after public review and hearings. Section 301 investigations have been initiated to determine whether the industrial policies and practices of certain trading partners are unreasonable or discriminatory and burden US commerce, focusing on sectors such as steel, autos, batteries, electronics, chemicals, machinery, semiconductors and solar modules; the process includes public submissions, hearings and consultations, and may lead to retaliatory trade measures tied to identified practices such as state subsidies, state-owned enterprise activity, market-access barriers, currency practices or suppressed domestic demand.