DECODING: New tariffs are live, and the transit exemption just expired

Today, July 28, 2026 at 00:01 EDT, the transit exemption that had still protected some goods already at sea expires, four days after the new U.S. tariffs took effect. According to Reuters, the Trump administration imposed, on July 24, 2026 at 00:01 EDT, tariffs of 10 and 12.5 percent on sixty trading partners, a measure covering 99.4 percent of U.S. imports. An exemption that expires on a Monday morning does not make noise. It just quietly raises a bill for everything still floating at sea.

The legal basis chosen by the administration is not incidental: Section 301 of the Trade Act of 1974, a mechanism distinct from the "reciprocal" tariffs struck down by the Supreme Court in February 2026, which had relied on national emergency law. This change in legal footing carries concrete consequences for the scope, duration and contestability of the new duties, an aspect often overlooked in the immediate coverage of this measure.

This text relies on dispatches from Reuters, Bloomberg and the New York Times published on July 24, 2026, with care taken to distinguish tariffs already applied, exemptions still in force at the time of writing, and adjustments announced but not yet effective, notably for China.

What changes starting today, July 28

The end of a four-day reprieve

Goods already in transit when the tariffs took effect on July 24 benefited from an exemption until July 28, 2026 at 00:01 EDT — that is, today. This four-day window was designed to avoid penalizing cargo that had left its port of origin before the announcement but had not yet reached U.S. soil. Four days of grace, then nothing. Customs calendars do not know nuance; they know the exact hour.

From this cutoff onward, any goods entering U.S. territory, regardless of their departure date, will be subject to the new tariff rates applicable to their country of origin. This calendar rigidity creates a sharp edge for importers whose cargoes happened to straddle this exact deadline.

Coverage reaching 99.4 percent of imports

The scale of the measure shows in its coverage rate: according to Reuters, these new tariffs apply to 99.4 percent of U.S. imports, making it one of the most sweeping tariff measures in recent U.S. trade history. Exemptions remain limited to specific categories: oil and gas, fertilizers, certain foods, plus automobiles, steel, aluminum and copper, already covered under separate Section 232 measures.

Added to this list are aircraft and their parts, critical minerals, and goods compliant with USMCA (the North American trade agreement). This last exemption matters for Canada and Mexico, where a substantial share of trade with the United States flows through this specific commercial framework rather than through the newly applied general tariffs.

Who pays what: the geography of the new tariffs

The 10-percent rate, for seventeen countries

The 10-percent rate applies to a precise list of seventeen countries: Argentina, Bangladesh, the United Kingdom, Cambodia, Canada, Ecuador, El Salvador, Guatemala, Honduras, India, Indonesia, Jordan, Malaysia, Mexico, Pakistan, Sri Lanka and Trinidad and Tobago. This list mixes developed economies, like the United Kingdom and Canada, with emerging or developing economies, a heterogeneity that reflects less a unified economic logic than a set of bilateral negotiations conducted separately. Seventeen countries, one single number. American tariff diplomacy draws no fine line between longtime allies and occasional partners.

For Canada specifically, this 10-percent rate adds to an already complex trade relationship with the United States, where a large share of trade otherwise benefits from USMCA exemptions. The coexistence of these two tariff regimes — the general rate and the sectoral exemptions — complicates the real reading of the net impact for Canadian exporters depending on the exact nature of their products.

The 10-to-12.5 percent combined rate for five major economies

A separate group of five economies — the European Union, Taiwan, Japan, South Korea and Switzerland — faces tariffs combined with most-favored-nation (MFN) rates, for a total of 10 to 12.5 percent depending on the product. This differentiated treatment, more complex than a single fixed rate, reflects separate bilateral negotiations conducted with each of these economies over prior months.

Thirty-eight other countries, not individually named in the dispatches consulted, are subject to a uniform rate of 12.5 percent. This multi-tier architecture — 10 percent, combined rates, 12.5 percent — reflects a declared U.S. administration intent to modulate tariff pressure according to each partner's economic weight and diplomatic relationship.

China, a case apart in mid-reconstruction

From 10 to 20 percent, back toward the November truce level

The treatment reserved for China stands apart clearly from the rest of the list. According to the dispatches consulted, the tariff targeting Chinese goods is being rebuilt toward 20 percent, the level set by the trade truce reached with President Xi Jinping in November 2025, up from 10 percent previously. This scheduled doubling is not yet fully in effect at the time of writing, which sets China apart from the rest of the sixty partners targeted by the July 24 measure. Twenty percent is not a random number: it is the exact price of a truce signed eight months ago, and one that clearly has not settled the matter.

According to the New York Times, this reconstruction brings the overall weighted average tariff on Chinese goods to 23.1 percent, a figure that aggregates the full set of tariff measures currently in force on U.S.-China trade, beyond the single 20-percent rate announced for this specific measure.

The Chinese reading: neither panic nor expected escalation

According to Tu Xinquan, dean of WTO studies at the University of International Business and Economics (UIBE) in China, quoted in the dispatches consulted: "My reading is that under Trump, there won't be sharp tariff hikes again." This reading, offered by a Chinese academic specializing in multilateral trade issues, suggests an expectation of stabilization rather than continued escalation among some Chinese observers.

According to Bloomberg, these new 12.5-percent tariffs — a figure that here appears to refer to the general regime rather than the China-specific 20-percent rate — "could irritate Beijing without triggering retaliation." This cautious phrasing illustrates a persistent uncertainty about China's actual reaction, one that none of the sources consulted allow to be settled with confidence as of publication.

The legal context: why Section 301 rather than national emergency powers

A Supreme Court that closed a door in February

The choice of Section 301 of the Trade Act of 1974 as the legal basis for these new tariffs stems directly from a Supreme Court ruling handed down in February 2026, which struck down the previous "reciprocal" tariffs based on national emergency law. This invalidation forced the administration to rebuild its tariff architecture on a different legal foundation, with procedural and duration implications distinct from the previous mechanism.

Section 301, historically used to sanction commercial practices deemed unfair rather than for general tariff measures, requires more formal preliminary investigation procedures than a national emergency declaration. This legal choice, documented in the dispatches consulted, suggests an intent to build a base more legally resistant to future challenges before U.S. courts.

What this legal basis changes for future contestability

Unlike tariffs based on national emergency, whose legitimacy depended on the persistence of a situation qualified as an emergency, measures based on Section 301 rest on specific trade determinations for each targeted partner. This structural difference could make a blanket judicial challenge of the entire scheme harder, since each country's designation rests on its own factual justification.

Changing your legal basis after a courtroom defeat is not a retreat. It is a reconstruction built to survive the next legal assault. None of the sources consulted mention any legal challenge already filed against this new architecture as of July 28, 2026.

The immediate impact on supply chains

Importers facing a bill that jumps overnight

For American companies importing consumer goods, industrial components or processed raw materials, these tariffs taking effect represents an immediate cost increase on any new shipment. The end of the transit exemption today eliminates the last window for cargo that had temporarily escaped this increase because of its shipping schedule.

This cost increase typically flows through, with a lag of several weeks depending on inventory-renewal cycles, into retail prices in the United States. No numerical data on the exact scale of this pass-through is available in the sources consulted for this analysis, but the transmission mechanism between tariff cost and final price is generally documented by international trade economists.

Exempted sectors, a partial safety net

The exemptions covering oil and gas, fertilizers, certain foods, along with sectors already under Section 232 — automobiles, steel, aluminum, copper — offer a partial safety net for certain supply chains judged strategic or sensitive on price for American consumers. This selective exemption choice reflects an intent to limit the most direct inflationary impact on essential goods.

However, according to the cited figures, this safety net covers only a residual fraction of trade flows, since the full set of tariff measures already touches 99.4 percent of imports. This proportion leaves little room for additional sectoral adjustments without upending the measure's overall architecture.

Canada and Mexico, between exemption and the general rate

Dual exposure depending on the nature of the products

Canada and Mexico find themselves in a particular situation: both appear on the list of countries subject to the 10-percent rate, but simultaneously benefit from the exemption for USMCA-compliant goods. This dual status means the real impact depends, product by product, on compliance with the North American rules of origin established by that trade agreement.

For Canadian exporters whose products do not fully meet USMCA criteria, or who rely on value chains including non-North American components, the 10-percent rate applies in full, creating an economic incentive to strengthen origin-rule compliance to avoid this additional tariff burden.

A pressure added to an already tense context

This new tariff regime adds to a North American trade context already marked, in recent months, by recurring tensions across several industrial sectors. Ten percent is not, in itself, a crushing number. But stacked onto months of already entrenched trade friction, it weighs heavier than it looks on paper.

No specific official reaction from the Canadian government to this July 24 measure is documented in the sources consulted for this analysis, which calls for caution regarding any expectation of immediate retaliation or negotiation from Ottawa.

Critical minerals, an exemption that answers other tensions

Why this category escapes the general regime

The exemption granted to critical minerals under this tariff measure is not incidental when set against the parallel tensions documented around Chinese export controls on rare earths and other strategic materials. By exempting this category from the new tariffs, the U.S. administration avoids adding extra tariff pressure on imports already weakened by the restrictions imposed on the Chinese side.

This coherence between two distinct trade files — general tariffs on one side, Chinese export controls on the other — illustrates a preservation logic for supply chains judged most vulnerable to simultaneous shocks coming from multiple directions at once.

An exemption that does not fix the underlying problem

Exempting critical minerals from additional U.S. tariffs does nothing to resolve the question of their real availability, largely conditioned by export decisions made in Beijing. This exemption protects against an additional penalty on the U.S. import side, but has no effect on supply itself, which remains subject to unilateral Chinese decisions documented separately.

This distinction between tariff protection and real supply security deserves to be underlined: a product exempted from U.S. duties can still become hard, even impossible, to obtain if its export is restricted at the source.

Aircraft and their parts, a sector with a strategic exemption

A globally integrated value chain

The exemption granted to aircraft and their parts acknowledges the reality of a sector whose value chain is globally integrated, with components manufactured across dozens of different countries before final assembly. Imposing general tariffs on this category would have risked disrupting already complex production cycles, with delivery timelines often measured in years rather than months.

This exemption follows a logic similar to the one applied to automobiles, steel, aluminum and copper under Section 232: recognizing that certain strategic industrial sectors require distinct treatment from the general tariff regime applied to imports overall.

What this exemption reveals about U.S. industrial priorities

The choice to specifically exempt this sector, among an otherwise narrow list of protected categories, signals an industrial priority given to aerospace, a field where the United States retains a global leadership position against European competitors and, increasingly, Chinese ones. A sector is rarely protected by accident. This exemption says something about what Washington considers non-negotiable.

No source consulted provides an explicit official justification for this specific exemption, which leaves this interpretation as contextual analysis rather than a fact confirmed by a cited official statement.

The political and diplomatic calendar around this measure

An announcement that precedes other trade deadlines

These tariffs taking effect on July 24, followed by the transit exemption expiring on July 28, fits within a broader trade calendar where several other deadlines and bilateral negotiations could arise in the coming weeks. None of the sources consulted explicitly detail any specific upcoming deadline beyond this week of July 28.

This tight calendar — four days between the tariffs taking effect and the end of the transit exemption — reflects an administrative intent to quickly close any escape window, rather than allowing an extended period of flexibility for the most logistically organized importers.

The reconstruction of the China tariff, a file still open

The fact that the tariff targeting China is described as "under reconstruction" rather than fully effective as of July 24 signals an unfinished process at the time the consulted dispatches were published. A tariff "under reconstruction" is neither a final number nor a promise kept. It is an open construction site, with all the uncertainty that implies for anyone planning imports.

This cautious phrasing, taken from Reuters and indirectly confirmed by the 23.1-percent overall weighted-average tariff figure cited by the New York Times, suggests that full implementation of the 20-percent rate for China could stretch over several weeks or months rather than being immediate.

What this measure means for U.S. inflation

A transmission mechanism well documented by economists

The link between tariff increases and domestic inflation is one of the most documented subjects in international trade economics: when a tariff applies to 99.4 percent of imports, a significant share of that added cost ends up, after a variable delay, feeding through to prices paid by end consumers, except when foreign exporters or U.S. distributors absorb part of the margin.

No precise numerical projection of this specific measure's inflationary impact is provided in the dispatches consulted for this analysis. This absence of official figures calls for treating any impact estimate on consumer prices as an open question, dependent on multiple factors not detailed in the available fact dossier.

The cost split between exporters, importers and consumers

Classic international trade theory teaches that the real split of a tariff's cost between foreign exporter, U.S. importer and final consumer depends on the supply and demand elasticity for each product category involved. This split therefore necessarily varies by sector, which makes any single generalization about "the impact" of this measure misleading if it is not broken down by product category.

This methodological complexity explains why the dispatches consulted for this analysis limit themselves to documenting applied rates and their legal basis, without advancing a macroeconomic figure that nothing in the sources would support with rigor.

Possible retaliation, a still-hypothetical scenario

What past trade precedents suggest

Recent history of U.S.-China trade relations shows that targeted retaliatory measures, rather than an immediate broad escalation, have often been Beijing's preferred response to U.S. tariff increases. Bloomberg's phrasing, which describes possible irritation "without triggering retaliation," suggests that the analysts cited anticipate a measured Chinese response rather than a frontal escalation in the immediate aftermath of this July 24 measure.

This expectation remains, at this stage, an analyst interpretation and not an official confirmation of a settled Chinese position. No Chinese government statement is directly cited in the dispatches consulted for this analysis regarding a specific reaction to the July 24 tariff measure. An analyst's interpretation is not a promise of calm. It is one reading among others, made before Beijing has said a single official word.

The other partners, silence for now

Beyond China, none of the fifty-nine other economies targeted by this measure have, according to the sources consulted, announced any specific retaliatory measure at the time the July 24 dispatches were published. This relative silence does not mean there will be no future reaction: it simply reflects the state of information available as of this analysis's writing. Diplomatic silence is never a guarantee of trade peace. Sometimes it is simply the time it takes to draft an official response.

For the European Union, whose combined tariff reaches 10 to 12.5 percent under applicable MFN rates, the lack of a documented reaction could also reflect an ongoing negotiation running in parallel, separate from this general tariff announcement, though no source consulted explicitly confirms this hypothesis. A silence out of Brussels is never a coincidence. It usually precedes a negotiation, or a capitulation nobody wants to name too soon.

American companies caught between two fires

Retailers facing a pricing dilemma

Major American retailers heavily dependent on imports from the countries targeted by this measure face a classic dilemma: absorb part of the tariff cost to preserve price competitiveness, or pass the full increase on to the end consumer at the risk of losing market share to better geographically positioned competitors.

This dilemma is not new in the recent history of U.S. tariff policy, but the scale of the coverage — 99.4 percent of imports — makes the strategy of simply diversifying suppliers toward untariffed countries harder than before, since nearly all major trading partners are now covered by some form of duty. When almost everyone is tariffed, diversification stops being a strategy and becomes wishful thinking.

American manufacturers, potential but not guaranteed beneficiaries

In theory, a broad-based tariff increase on imports should favor American manufacturers producing equivalent goods domestically, by narrowing the price-competitiveness gap against tariffed imports. But this positive effect assumes these manufacturers already have sufficient production capacity to absorb demand diverted from imports, which is not guaranteed across every product category covered by this measure. Protecting on paper and producing in fact are two different things this tariff cannot reconcile on its own.

This uncertainty over the real timeline for U.S. industrial adaptation remains, at this stage, an open question that the sources consulted do not allow to be settled with precise figures.

What this file leaves unresolved

The questions the dispatches do not settle

Several gray areas remain in the fact dossier available for this analysis: no source consulted specifies the exact timeline for the full implementation of the 20-percent Chinese rate, nor the date by which the 23.1-percent overall weighted-average tariff cited by the New York Times will be fully stabilized across all relevant product categories.

Likewise, no official numerical projection of the expected overall impact on U.S. gross domestic product or on consumer inflation accompanies the dispatches consulted. This lack of official figures deserves to be named explicitly rather than filled in with an estimate that no source would support with rigor.

What to watch in the coming weeks

Three indicators deserve close monitoring in the weeks following this July 28 deadline: official confirmation of the 20-percent Chinese rate, any announcement of targeted retaliation from the targeted partners, and the evolution of consumer prices in the product categories most exposed to tariffed imports. These three signals will constitute the real test of this tariff policy beyond its mere administrative entry into force. A tariff policy is not judged on the day it takes effect. It is judged in the bills that arrive three months later.

None of these three indicators can be documented with certainty at the time of this analysis's publication, which calls for treating July 28, 2026 as a milestone rather than the conclusion of the American tariff file.

July 28, 2026 marks the end of a technical reprieve more than the start of a new policy: the tariffs themselves have already been in force for four days, and the transit exemption's expiration only completes the rollout of a measure that touches 99.4 percent of U.S. imports across sixty trading partners. The Chinese case, still being rebuilt toward a 20-percent rate, remains the most uncertain file in this tariff architecture, with an overall weighted-average tariff already estimated at 23.1 percent by the New York Times.

What this measure establishes with certainty is the return of Section 301 as the central instrument of U.S. trade policy, after the legal failure of tariffs based on national emergency powers. What this text cannot yet claim is the exact scale of the pass-through to U.S. prices, nor the precise reaction Beijing, Ottawa or Brussels will choose to adopt in the weeks following this deadline. A tariff takes effect in one second. Its consequences are counted in months, and nobody has the full bill yet.

Signed Maxime Marquette, columnist

Columnist's Transparency box

Editorial positioning

This decoding covers a U.S. trade policy measure without passing moral judgment on the officials involved. The choice of subject reflects an intent to document, with the precision the available sources allow, a tariff change with direct economic consequences for multiple trading partners, including Canada. No position is taken on the overall economic merits of this tariff policy; this text focuses on reported facts and their context.

Methodology and sources

This decoding relies on the Reuters dispatch of July 24, 2026 as the primary source for the details of the tariff measure, contextualized using analyses from Bloomberg and the New York Times, published the same date, for reactions and additional numerical projections. Every tariff rate has been explicitly attributed to the country or group of countries concerned, with a clear distinction between measures already fully effective and those, like the Chinese case, still being implemented at the time the consulted sources were published.

Nature of the analysis

This text distinguishes confirmed tariff facts reported by at least one established news source citing official data, attributed statements from named figures such as the cited Chinese academic, presented with full attribution, and the columnist's contextual analysis of this measure's probable implications, clearly distinguished from the facts themselves and reflecting only his own judgment on the documented economic scope.

Sources

Primary sources

Reuters — Trump imposes new tariffs on 60 trading partners as transit exemption expires — July 24, 2026

Reuters — Detail of tariff rates by country and sectoral exemptions — July 24, 2026

Reuters — Full list of sixty targeted trading partners — July 24, 2026

Reuters — Section 301 legal basis and context of the Supreme Court ruling — July 24, 2026

Secondary sources

Bloomberg — China set to look past Trump's new tariffs before Xi visit to U.S. — July 24, 2026

New York Times — Trump's China tariffs and the 23.1 percent overall weighted-average tariff — July 24, 2026

New York Times — Quote from Tu Xinquan, dean of WTO studies at UIBE — July 24, 2026