Sixty economies mount a last-ditch defense as USTR faces a Monday deadline on forced labor duties covering 99 percent of United States imports
By Monday, the Office of the United States Trade Representative must complete the most expansive Section 301 investigation ever undertaken, one that found every major American trading partner deficient on forced labor enforcement and proposed new tariffs on 60 economies that together supply 99.4 percent of everything the United States imports. Over the past ten days, in comment dockets, hearing rooms and post-hearing briefs filed as late as this week, those governments have mounted an extraordinary collective effort to talk Washington down.
The stakes could hardly be higher or the timing tighter. The proposed duties, 10 percent for a group of partners credited with meaningful forced labor regimes and 12.5 percent for everyone else, are designed to replace the 10 percent global surcharge imposed under Section 122 of the Trade Act of 1974, which expires by law on Friday, July 24. The forced labor investigation itself faces a statutory completion deadline of July 20, according to trade calendars tracking the docket, leaving the administration a four-day window to publish a final action and avoid any gap in the tariff wall.
What emerges in the coming days will define the baseline cost of importing into the United States for years. Unlike the emergency tariffs the Supreme Court struck down in February, and unlike the temporary Section 122 bridge that followed, Section 301 actions carry no rate ceiling and no fixed sunset. They run four years and are renewable.
An investigation without precedent
USTR opened the forced labor inquiry on March 11 alongside a companion investigation into excess manufacturing capacity in 16 economies. The forced labor case asked a deceptively simple question: do America’s trading partners prohibit, and effectively block, the importation of goods produced with forced labor, as the United States has done under Section 307 of the Tariff Act of 1930 for nearly a century?
The answer, delivered in a report released June 2, was uniformly negative. The report found that all 60 economies under investigation, including the European Union, Canada and Mexico, either failed to effectively enforce a forced labor prohibition or failed to impose any legal prohibition at all, as trade scholar Desiree LeClercq summarized on the International Economic Law and Policy Blog. On June 5, the agency published its proposed remedy in the Federal Register.
The proposed architecture sorts the world into two tiers. Economies that maintain a forced labor import prohibition, specifically Canada, Ecuador, the European Union, Indonesia, Mexico and Pakistan, along with economies that made forced labor commitments in their Agreements on Reciprocal Trade, among them Argentina, Bangladesh, Cambodia, El Salvador, Guatemala, Malaysia and Taiwan, and the United Kingdom with its partial regime, would face additional duties of 10 percent. All other economies, a list of roughly 45 that includes China, India, Vietnam, Thailand, Turkey and South Korea, would face 12.5 percent, according to the Federal Register notice. The Associated Press, counting slightly differently as governments shifted between categories, described the proposal as 10 percent on 16 countries and 12.5 percent on 44.
The scale distinguishes this action from every Section 301 case before it. The statute has historically been aimed at a single trading partner and a defined set of practices, most famously China in 2018. Legal commentators, including the Sheppard Mullin trade team in a client alert wryly titled Section 301’ing the World, or 99.4 Percent of It, have noted that no administration has previously attempted to use the provision as scaffolding for a near-universal tariff.
The American benchmark
The yardstick against which the 60 economies were measured is the United States’ own forced labor import regime, and its history explains both the moral force and the practical awkwardness of the investigation.
Section 307 of the Tariff Act of 1930 has prohibited the importation of goods made wholly or in part with forced labor for nearly a century, but for most of that century the ban was a dead letter, neutered by a consumptive demand exception that allowed banned goods in whenever domestic production could not meet demand. Congress closed that loophole in 2016, and enforcement has accelerated dramatically since. Customs and Border Protection now polices the ban through withhold release orders that stop suspect shipments at the border, and the Uyghur Forced Labor Prevention Act of 2021 added a rebuttable presumption that goods from China’s Xinjiang region are made with forced labor and are therefore inadmissible.
That enforcement record gives Washington standing to argue that its partners have not kept pace. Most trading partners have no import prohibition at all, and even jurisdictions with formal bans have struggled to operationalize them. The European Union’s forced labor regulation does not begin applying until late 2027. Canada’s existing prohibition, enacted alongside USMCA, has resulted in only a handful of shipment detentions since 2020, a record Canadian officials themselves have acknowledged needs strengthening.
The awkwardness lies in the remedy. Section 307 blocks specific goods traced to forced labor; the proposed Section 301 action taxes everything from everywhere, whether or not a given product has any forced labor nexus. Bridging that conceptual gap, from targeted enforcement to across-the-board tariffs, is the analytical move that governments, scholars and labor advocates spent the comment period contesting.
The world files its objections
The procedural record now before Ambassador Jamieson Greer is enormous. By the July 6 deadline, 1,518 written comments had been filed in the docket, according to a tally by trade law scholar Simon Lester on the International Economic Law and Policy Blog. A three-day public hearing ran from July 7 through July 9, with dozens of governments requesting to appear, among them Mexico, India, South Korea, Vietnam, South Africa, Chile, Peru and Pakistan. Post-hearing briefs, the last procedural word before the final determination, arrived this week from governments including Mexico, Taiwan, Thailand, Vietnam, Norway, South Africa, Chile, Guatemala and Kazakhstan.
The governments’ arguments cluster around two themes, Lester observed: that USTR got the assessment of their laws wrong, and that they have taken new actions since the report was issued that deserve credit.
Canada’s filing is the most closely watched test of that second theory. On June 12, Ottawa introduced Bill C-35, standalone legislation to strengthen its prohibition on importing goods produced with forced labor. In its comments, the Canadian government argued that it “has established a robust framework to prevent goods produced with forced labour from entering the Canadian market” and that, in light of its existing prohibition, supply chain transparency measures and the new bill, “there is no basis for the imposition of additional Section 301 duties on Canadian goods.” Canada also urged Washington to preserve current treatment for goods that comply with the United States-Mexico-Canada Agreement.
Cambodia moved even faster, adopting an interministerial regulation, effective July 1, that explicitly prohibits the import, use, circulation or supply of goods linked to forced labor, a step it told USTR followed directly from a May 15 consultation with the Section 301 committee in Washington. Japan pointed to its faithful and swift implementation of its July 2025 trade agreement with the United States and called on Washington to “duly recognize these efforts” and take appropriate action.
The docket stretches far beyond the marquee filings. Australia, Chile, Colombia, Costa Rica, Ecuador, India, Indonesia, Kazakhstan, Malaysia, Morocco, New Zealand, Nigeria, Norway, Peru, Singapore, South Korea, Thailand, Uruguay and Vietnam all submitted government comments, according to the docket index compiled on the International Economic Law and Policy Blog. USTR specifically invited views on whether different tariff rates should apply depending on whether an economy has made commitments to the United States, has an import prohibition on the books, or maintains a partial regime, an invitation that turned the comment period into a competitive audition for the lower tier.
The pattern is striking: faced with tariff exposure, governments from Ottawa to Phnom Penh have legislated, regulated and pledged enforcement changes within weeks, a demonstration of coercive leverage that the administration’s defenders cite as proof the strategy works, and that critics describe as tariff diplomacy conducted at regulatory gunpoint.
Lester, the trade scholar, framed the forward-looking question that the final action must answer: if Canada’s Bill C-35 becomes law in the coming months, and its implementation makes Canada’s forced labor import regime as good as or better than the American system, would that force USTR to take another look and lower Canada’s rate, perhaps even to zero? The Section 301 statute’s process for accounting for changed practices is murky, he wrote, but a final action that explains why recent reforms did or did not move rates would at least establish that remediation is a road that leads somewhere.
The skeptics’ case
Not everyone is persuaded the forced labor rationale is the point. The president has said openly that he wants to restore the broad worldwide tariffs of 2025, and the investigation’s remedy, a two-rate global duty landing days before the Section 122 surcharge expires, maps suspiciously well onto that goal.
“Section 301s have been pretty legally durable,” Sarah Bianchi, a former deputy United States trade representative now at Evercore ISI, told the Associated Press. “But no one has tried to use it to basically put in place universal tariffs. I think there will be legal challenges.”
Labor advocates find themselves in an awkward position. Many have argued for years that trading partners underenforce forced labor bans, and the American statute the investigation holds up as the benchmark, Section 307, has real teeth through withhold release orders issued by Customs and Border Protection. But humanitarian organizations testifying at the July hearings questioned whether across-the-board tariffs, applied to every product from an economy regardless of any connection to forced labor, will actually improve conditions for workers, or simply raise costs while the underlying supply chain abuses continue.
Business groups pressed a more practical objection: the proposed rates would apply on top of existing duties, on top of country-specific actions such as the new 25 percent Brazil tariff taking effect July 22, and potentially on top of whatever emerges from the still-open overcapacity investigation into 16 economies. The cumulative effect, they argued in comments, is a tariff schedule of historic complexity in which the forced labor layer functions as a revenue floor rather than a labor rights instrument.
Trade lawyers add that the durability advantage cuts both ways. Nathaniel Halvorson, a former trade official now at Baker McKenzie, told the Associated Press that USTR is “operating about as fast as legally possible” to close the gap before July 24, but speed creates its own litigation surface. A final action that brushes aside 1,518 comments and a three-day hearing record without visible engagement invites challenge under the same administrative law principles that have felled other fast-moving tariff actions.
The legal gauntlet ahead
Whatever USTR publishes this week will be litigated, and the contours of that fight are already visible.
The strongest challenge runs through administrative law. Section 301 actions must rest on the investigative record, and plaintiffs will argue that a near-universal tariff calibrated to replace an expiring revenue measure is arbitrary and capricious, a remedy disconnected from the forced labor findings that nominally justify it. The compressed timeline helps the plaintiffs’ narrative: an investigation opened in March, findings in June, hearings in early July and final action by late July, landing precisely as Section 122 dies, reads less like deliberation than like choreography. The government will respond that it met every statutory requirement, processed 1,518 comments and held three days of hearings, and that the statute grants the trade representative broad discretion in choosing remedies.
Timing rules matter too. Under the first-term China litigation, courts held that procedural challenges to Section 301 actions face steep hurdles once USTR has followed notice and comment, a precedent the administration is counting on. But as Bianchi noted, no prior action attempted universal coverage, and novelty is where deference goes to die.
The international legal track is slower but not empty. The duties plainly exceed American tariff bindings at the World Trade Organization, and affected members can be expected to file disputes, as Brazil already has over its separate 25 percent action. With the WTO Appellate Body still paralyzed, those cases cannot produce binding outcomes against the United States on any near horizon, which is precisely why most governments poured their energy into the comment docket instead. The forum that matters is the one that answers by Friday.
The economic footprint
Because the proposed duties would cover virtually all imports, their macroeconomic weight resembles a general tariff increase more than a targeted enforcement action. The rates are calibrated to the Section 122 surcharge they replace, the same 10 percent for the favored tier and slightly more, 12.5 percent, for everyone else, so the immediate price shock at the border should be modest for most origins. But the composition shifts matter.
Vietnam, Thailand and Cambodia, which built enormous American-bound export sectors during the China diversification wave, would see their baseline rate rise from 10 to 12.5 percent, durable and stacking on existing duties, unless their filings move them into the lower tier. India, negotiating its own bilateral arrangement with Washington, faces unresolved interaction between its agreed 18 percent reciprocal rate and the proposed 12.5 percent forced labor duty, according to analysis by freight advisory Movargo. Canada and Mexico face the possibility that USMCA-qualifying goods, exempt under Section 122, lose that protection entirely, a change that would ripple through continental automotive and agricultural supply chains within days.
For the Treasury, the action is the linchpin of revenue replacement. Monthly tariff collections peaked above 31.4 billion dollars last fall, fell to 22 billion after the Supreme Court ruling and turned into a 25.6 billion dollar net loss in June as IEEPA refunds flowed out, according to figures reported by the Associated Press. Customs and Border Protection has now sent 86.3 billion dollars in refunds to Treasury. A seamless handoff from Section 122 to the forced labor duties would restore the revenue baseline on which the administration’s fiscal plans rest.
For American consumers, the practical question is whether the new layer persists long enough to pass fully into prices. Retailers front-loaded inventory ahead of every previous tariff deadline, and import data suggest another pull-forward surge in June and early July. If the final rates match the proposal, most economists expect a one-time price level effect concentrated in apparel, electronics, furniture and food categories not covered by exclusions, with the burden falling more heavily on lower-income households that spend a larger share of income on traded goods.
What happens Monday, and after
The formal sequence is now well rehearsed from the Brazil case: a determination notice, a Federal Register publication with annexes listing covered and excluded products, an effective date coordinated with the Section 122 expiration, and CBP implementing instructions for the Chapter 99 tariff provisions. Trade advisers expect the final action to land between Monday and Wednesday to eliminate any daylight between regimes.
The open questions are the ones the governments spent July litigating. Will Canada’s Bill C-35 and Cambodia’s July 1 regulation earn rate reductions or exclusions, establishing that remediation is rewarded? Will USMCA treatment survive? Will any economy be dropped from the action entirely, and will any tier assignments shift? The answers will tell trading partners whether the comment process is a genuine channel or a formality, and will shape how governments respond to the next investigation, the overcapacity case, whose proposed tariffs are expected within months and are widely predicted to take effect after the November midterm elections.
Importers should treat the proposal as the floor of their planning. Mapping every origin against the two tiers, checking annex exclusions line by line, pricing the stack with country-specific actions and preparing entry documentation for a mid-week changeover are the immediate tasks. Exporters abroad should assume the tariffs arrive on schedule and press their governments to pursue the remediation route that Canada and Cambodia have modeled.
There is one more constituency with a stake in Monday’s decision: the workers the investigation invokes. If the final action pairs tariffs with a credible remediation pathway, rewarding the Cambodias and Canadas that move, it could genuinely raise the global floor on forced labor enforcement, an outcome labor economists have chased for decades without leverage of this scale. If it applies the rates mechanically and pockets the revenue, the forced labor framing will be remembered as packaging. The difference between those outcomes is written in the annexes and the rate tables that USTR publishes this week, which is why human rights organizations will be reading the Federal Register notice as closely as any customs broker.
However the final notice reads, the forced labor action marks a threshold. Section 301, built as a scalpel for discrete trade fights, is being deployed as the load-bearing wall of a universal tariff system. Whether the courts, the trading partners and the American economy accept that renovation is the defining trade question of the second half of 2026.