The Trump administration’s latest tariff push targets more than 60 trading partners – but the stated reason isn’t trade deficits, currency manipulation, or national security. It’s forced labor. And the numbers the administration is using to make that case put Canada in an uncomfortable spotlight: between 2020 and 2026, Canadian border authorities intercepted just 50 shipments suspected of containing goods made with forced labor, and only two of those were ever blocked from entering the country. In the same period, U.S. Customs and Border Protection denied entry to more than 6,300 shipments in 2024 alone for violating U.S. forced labor law.
That contrast forms the backbone of the Trump administration’s new tariff case – a 92-page investigation that accuses dozens of countries, including some of America’s closest allies, of failing to police their own supply chains.
The announcement landed late Tuesday night. The tariffs unveiled hinge on Section 301 of the Trade Act of 1974, which gives the government the power to investigate alleged unfair trade practices and impose tariffs and other restrictions. The move is the Trump administration’s most sweeping tariff action since the U.S. Supreme Court struck down its earlier emergency tariffs in February, and it signals a clear pivot toward a new legal strategy for rebuilding the trade wall the president has long sought.
The Trump Tariffs Plan: What’s Being Proposed
The USTR proposed 10% additional duties on imports from economies that impose a forced labor import prohibition or have committed to do so, and 12.5% on all others.
In its most sweeping action since the high court ruling, the Trump administration will impose tariffs of 10% on imports from Canada, Mexico, the European Union, Taiwan and the U.K., among other places, according to a statement released by the Office of the U.S. Trade Representative. The remaining 44 countries – a group that includes Japan, India, South Korea, Singapore, and Vietnam – face the higher 12.5% rate.
The announcement came from U.S. Trade Representative Jamieson Greer, who released the proposal the same evening he wrapped up a face-to-face meeting with Canada-U.S. Trade Minister Dominic LeBlanc in Washington. “The failure of our most important trading partners to address the importation of goods made with forced labor is unacceptable. This creates a dynamic where American workers are forced to compete globally on an unlevel playing field,” Greer said in a statement.
On March 12, 2026, the U.S. Trade Representative initiated 60 investigations related to the failure of various economies to impose and effectively enforce a prohibition on the importation of goods produced with forced labor – the procedural groundwork required before any tariffs can take effect. Section 301 requires a full investigation, public comment, and hearings before duties can be imposed, a slower process than the emergency powers the administration previously relied on, but one that has survived legal challenges in the past.
The public is invited to provide written comments by July 6, 2026, on the proposed actions, and USTR will hold hearings on July 7, 2026. Nothing is final yet, but the direction is unmistakable.
Why the Trump Tariffs Plan Shifted to Section 301
On February 20, 2026, the Supreme Court decided Learning Resources Inc. v. Trump 6-3, with the majority opinion written by Chief Justice John Roberts and joined by Justices Sonia Sotomayor, Elena Kagan, Neil Gorsuch, Amy Coney Barrett, and Ketanji Brown Jackson, holding that IEEPA does not give the president the power to set tariffs.
That ruling dismantled the legal foundation for the administration’s sweeping “Liberation Day” tariffs and most of the duties imposed under the International Emergency Economic Powers Act (IEEPA – an emergency sanctions law). The Tax Foundation estimated tariffs added about $1,000 to household costs in 2025 and as much as $1,300 in 2026.
Within hours of the decision, President Trump signed a proclamation imposing a new 10% global tariff under Section 122 of the Trade Act of 1974, effective February 24, 2026. But Section 122, like IEEPA, came with serious limitations. The law only allows the president to set such universal tariffs, limited to 150 days and requiring congressional approval for extension, to deal with serious balance-of-payments deficits. The Court of International Trade issued a 2-1 decision on May 7, 2026, finding that the new tariffs were not justified under Section 122 and placed an injunction on the government from collecting those tariffs.
With the Supreme Court’s February 20 decision ending the use of IEEPA for across-the-board tariffs, the Trump administration turned to Section 301 of the Trade Act of 1974 as its main vehicle for rebuilding tariff authority – a law that requires an administrative record and invites public comment. Section 301 survived legal challenges during Trump’s first term and was largely maintained by the Biden administration, making it the administration’s most durable remaining tariff authority. Treasury Secretary Scott Bessent told CNBC in early March that he had “strong belief that the tariff rates will be back to their old rate within five months,” calling laws like Section 301 slower-moving but legally more robust.
Using the forced labor rationale accomplishes two things simultaneously: it provides a morally defensible justification that’s difficult to oppose publicly, and it lets the administration open investigations on the maximum number of countries at once. If finalized after the comment period and hearings, the tariffs would represent the administration’s broadest use of Section 301 authority to date, extending duties to more economies than any previous Section 301 action.
The Forced Labor Case – and Its Critics
The forced labor data at the center of this tariff proposal isn’t invented. Forced labor in global supply chains is a documented and serious problem, particularly in China’s Xinjiang region. The Uyghur Forced Labor Prevention Act was signed into law on December 23, 2021, as the U.S. response to the Chinese government’s systemic use of forced labor against Uyghurs and other ethnic minorities in the Xinjiang Uyghur Autonomous Region of the People’s Republic of China.
The UFLPA, signed into law on December 23, 2021 and implemented on June 21, 2022, establishes a rebuttable presumption that all goods mined, produced, or manufactured, wholly or in part, in the Xinjiang Uyghur Autonomous Region of China, or by an entity on the UFLPA Entity List, are made with forced labor and are prohibited from entering the United States. That legal presumption – meaning companies must prove goods are not tainted by forced labor, rather than the government proving they are – has made U.S. enforcement significantly more aggressive than most of its trading partners.
Canada, for its part, has had a forced labor import ban in place since July 1, 2020. But its enforcement record is thin. The USTR’s investigation report flags that gap directly, pointing out that over six years, Canadian authorities intercepted just 50 shipments – and blocked only two. That compares to more than 6,300 shipments blocked by U.S. Customs in 2024 alone under the UFLPA.
Critics of the proposal argue that the enforcement gap isn’t evidence of negligence but of different legal frameworks, and that lumping democratic allies with authoritarian states in the same tariff action undermines the credibility of the forced labor argument. China pushed back against the notion that it uses forced labor and said the U.S. should resolve such allegations through trade negotiations rather than unilaterally imposing tariffs. An EU spokesman called the tariff proposal “unjustified” and said the bloc was analyzing the findings of the USTR investigation, noting separately that the EU passed its own forced labor product ban in 2024.
Some trade analysts see the forced labor justification as strategically convenient rather than primary. The Trump administration described the Section 301 investigations as part of a broader plan to replace the tariffs previously imposed under IEEPA. The Section 122 tariffs were ruled invalid by the Court of International Trade in May 2026 – and the forced labor investigations had already been publicly initiated in March, signaling that the administration had been building this legal architecture in parallel with the Section 122 strategy from the start.
What Canada’s Exposure Actually Looks Like
For Canadian exporters, the headline rate of 10% sounds alarming – but the practical exposure is more limited than it appears. Critically, the proposed tariff on Canadian goods applies only to exports that don’t comply with the rules of origin under the Canada-U.S.-Mexico Agreement (CUSMA – the trade deal that replaced NAFTA). Goods that qualify under CUSMA are exempt, and reporting from CBC indicates that nearly 90% of Canada’s exports to the U.S. would fall under that exemption.
On Monday, the USTR also proposed a 25% duty on many Brazilian goods as a result of a separate Section 301 investigation into Brazil’s acts, policies, and practices related to digital trade and electronic payment services, unfair preferential tariffs, anti-corruption enforcement, intellectual property protection, ethanol market access, and illegal deforestation. USTR also initiated investigations regarding the acts, policies, and practices of various economies under Section 301(b) of the Trade Act of 1974 relating to structural excess capacity and production in manufacturing sectors.
In the forced labor findings, the USTR said it would exempt from tariffs products including energy, rare earths and some other metals, beef, coffee, certain fruits and vegetables, pharmaceuticals, organic chemicals, and aircraft parts. Those carve-outs are significant and suggest the administration is at least partially aware of the downstream consumer price implications of broad-based tariffs.
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What This Means for You
The Trump tariffs are the largest U.S. tax increase as a percent of GDP since 1993 and amount to an average tax increase per U.S. household of $1,500 in 2026, according to the Tax Foundation. That figure doesn’t yet include the proposed forced labor tariffs, which have no finalized cost estimate.
The new tariff proposals are not law yet. A public comment period runs until July 6, and hearings begin July 7. That process gives businesses, trade groups, and affected governments the opportunity to argue for exemptions, lower rates, or changes to the investigation findings. Nothing takes effect until that process concludes, which means the tariffs, if finalized, would likely not kick in until late 2026 at the earliest.
For consumers, the practical question is whether these new duties – if finalized – stack on top of existing Section 232 tariffs on steel and aluminum, or replace other levies. Treasury Secretary Scott Bessent has suggested that the combination of Section 301 tariffs, temporary tariffs under Section 122, and tariffs under Section 232 of the Trade Expansion Act of 1962 could return tariff revenue to the near-historically high levels reached before the Supreme Court’s IEEPA ruling.
The Supreme Court is also expected to consider whether to hear HMTX Industries v. United States, a case challenging whether the USTR exceeded its authority when it expanded first-term Section 301 tariffs on China from about $50 billion to $500 billion in imports using a modification process that requires less procedural scrutiny than the original tariff action. While the Learning Resources case addressed whether IEEPA permitted the imposition of tariffs at all, the HMTX case raises a distinct but related question: even where a statute does authorize tariffs, how far may an agency go in “modifying” them without any statutory ceiling or proportionality requirement? If the Court takes that case, Section 301 itself could face fresh legal scrutiny.
Watch July – That’s When It Gets Decided
The clearest takeaway for anyone tracking costs: the July hearings are where the shape of these tariffs – their scope, rates, and exemptions – will be contested. Public comments submitted before July 6 can directly influence which products are exempted and at what rate. If you import goods, run a business dependent on imported components, or simply buy groceries, the outcome of those hearings will matter to your bottom line before the end of 2026.
The administration has made its legal pivot clear: emergency powers are gone, and Section 301 is now the primary vehicle for rebuilding the tariff structure that the Supreme Court dismantled in February. Whether that vehicle holds up – legally and politically – depends on what happens in those July hearings, and potentially on what the Supreme Court decides to do with HMTX next term.
Disclaimer: This information is not intended to be a substitute for professional financial advice, investment advice, tax advice, or legal advice, and is provided for informational purposes only. Always seek the guidance of a qualified financial advisor, accountant, or other licensed professional regarding your personal financial situation or investment decisions. Do not make financial, investment, or tax decisions based solely on information presented here. Past performance is not indicative of future results, and all investments carry risk, including the potential loss of principal.
AI Disclaimer: This article was created with the assistance of AI tools and reviewed by a human editor.
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