Ottawa revives a two-tier tariff-rate quota proposal for steel and aluminum as Dominic LeBlanc returns to Washington with two weeks left on the clock before a 50 per cent Section 338 duty lands on roughly US$20 billion of Canadian exports
OTTAWA, Aug. 5, 2026 – Canada’s negotiators have put a familiar idea back on the table in Washington, and this time the deadline is real.
Intergovernmental Affairs Minister Dominic LeBlanc and Janice Charette, Canada’s chief trade negotiator, travelled to Washington on Tuesday for their second round of meetings in as many weeks, according to reporting by The Globe and Mail. At the centre of the discussions is a revived proposal for a tariff-rate quota arrangement that would cut the punitive 50 per cent United States levy on most Canadian steel shipments in exchange for an effective ceiling on the volume crossing the border. The same structure, first floated by American negotiators before talks collapsed last October, would introduce two tiers of duty pegged to historical export levels, with shipments below an agreed threshold facing a rate in the range of 10 to 15 per cent rather than 50.
The renewed push comes with fourteen days left before the most legally unusual tariff action of the entire Canada United States dispute takes effect. On July 20, President Donald Trump signed three proclamations under Section 338 of the Tariff Act of 1930, the Smoot-Hawley statute, imposing an additional 50 per cent duty on Canadian goods beginning at 12:01 a.m. Eastern time on Aug. 19. Analysis published by White & Case on July 24 put the combined coverage at roughly US$20 billion of American imports from Canada in both 2024 and 2025, about 5 per cent of the total value of goods the United States buys from its northern neighbour, spread across 554 tariff lines.
For Canadian exporters, the two files are now inseparable. Ottawa wants sectoral relief on steel, aluminum, softwood lumber and automobiles. Washington wants leverage in a broader renegotiation of the Canada United States Mexico Agreement. The Section 338 action is the pressure, and the quota framework is the currency Ottawa hopes to trade with.
What is actually on the table
The mechanics of a tariff-rate quota are unglamorous but consequential. Rather than a flat duty applied to every tonne, a TRQ splits shipments into an in-quota tranche taxed at a low rate and an over-quota tranche taxed punitively. Under the American proposal described to The Globe and Mail, the in-quota rate for Canadian steel would fall to somewhere between 10 and 15 per cent, a dramatic improvement on the 50 per cent Section 232 rate that Canadian mills have absorbed for more than a year. Volumes above the threshold would presumably continue to face the full levy, which in practice means they would not move at all.
LeBlanc has publicly described the shape of what Ottawa is seeking. He told reporters there may be room to lower the tariffs outright, or to reach a quota arrangement allowing a defined quantity of metals or vehicles into the United States at a reduced rate. That is a meaningful shift in Canadian positioning. For most of 2025, Ottawa’s stated objective was the complete removal of the Section 232 metals tariffs and the restoration of duty-free continental trade in steel and aluminum. Accepting a quota means accepting a cap, and a cap means accepting that the pre-2025 status quo is gone.
The threshold is where the negotiation lives. Canadian steel exports to the United States were substantially higher before the tariffs than they are now. If Washington sets the quota using recent depressed volumes as the baseline, the arrangement would lock in the damage rather than reverse it. If the baseline reaches back to 2023 or 2024 shipment levels, the deal starts to look like genuine relief. Canada has already faced a version of this arithmetic domestically. Ottawa’s own steel TRQ regime, extended in June 2026 to run through June 2027, sets quota levels at 20 per cent of 2024 volumes for countries without a free trade agreement with Canada and 75 per cent of 2024 volumes for those with one, with over-quota volumes hit by a 50 per cent surtax.
That symmetry is not lost on either side. Ottawa has spent the past eighteen months building a quota architecture at its own border. It is now being asked to accept one at the American border.
The August 19 cliff
The Section 338 proclamations are structurally identical and were implemented through a single set of amendments to the Harmonized Tariff Schedule of the United States, but they rest on three separate findings of alleged Canadian discrimination.
The dairy proclamation targets 52 HTSUS subheadings covering dairy and certain other agricultural products, worth US$97.2 million in 2024 imports from Canada, according to the White & Case analysis. Its premise is that the cheese tariff-rate quotas Canada extended to the European Union under the Comprehensive Economic and Trade Agreement are more generous than those the United States obtained under CUSMA, in particular because the CETA quota permits retailers to hold quota allocations while the CUSMA quota does not.
The motor vehicles proclamation is by far the largest. It covers 439 HTSUS subheadings and US$19.3 billion in 2024 imports, and its stated justification is Canada’s United States Surtax Order (Motor Vehicles 2025), the 25 per cent counter-tariff Ottawa applied to American vehicles in April 2025 in response to Washington’s own Section 232 auto duties. The proclamation notes that American motor vehicle exports to Canada fell roughly 22 per cent after the order took effect, from about US$25.9 billion to about US$20.3 billion comparing April 2025 to March 2026 against the prior year, while shipments from Mexico, Japan, South Korea and Germany rose to fill the gap.
The alcoholic beverages proclamation covers 63 subheadings and about US$1 billion in 2024 imports, and it targets the provincial liquor boycotts launched in March 2025. White & Case reports the proclamation’s finding that American alcohol exports to Canada fell about 81 per cent after the boycotts began, while alcohol exports from other countries to Canada rose by roughly US$170 million over the same period.
Two features of the action matter enormously to Canadian exporters. First, qualifying for preferential treatment under CUSMA does not exempt a good from the 50 per cent duty. Second, the duties stack. They apply in addition to other applicable tariffs, taxes, fees and charges, including measures imposed under Section 122 and Section 301, absent explicit instruction otherwise. Products already covered by Section 232 duties are exempt, as are certain civil aircraft and parts, and the administration has said energy, potash, fish and certain critical minerals will not be captured. But no products on the three lists appear to be covered by existing Section 232 actions, which limits the practical value of the carve-out.
The product coverage is the detail that has most unsettled Canadian trade counsel. Because the motor vehicles proclamation sweeps in 439 subheadings, the affected list runs well past cars and parts into electronics and telecommunications equipment, furniture and home goods, building materials including lumber, plywood, doors and cement, plastics and packaging, apparel, footwear and luggage, toys and sporting goods, machinery and manufacturing inputs, cosmetics and fragrances, and agricultural goods such as cut flowers, plants and seeds. Hockey equipment appears on the alcohol list.
For an importer of Canadian-origin kitchen cabinets or hockey sticks, the legal theory behind the tariff is academic. The landed cost is not.
Why metals moved first
There are practical reasons the steel and aluminum file is furthest along. The sector has been under a 50 per cent American duty for more than a year, the damage is documented, and both governments have already exchanged draft quota language once. Autos, by contrast, remain barely engaged. One Canadian industry source and one government source told The Globe and Mail that autos, the other sector hammered by Section 232, has not been the subject of detailed negotiation. United States Trade Representative Jamieson Greer told a congressional committee last month that discussions about rules of origin and other structural changes to CUSMA, potentially including the auto sector, would likely run into 2027.
That timeline is a problem for Ontario. Canadian-assembled vehicles still face a 25 per cent American tariff, and the Section 338 motor vehicles proclamation adds a further 50 per cent to hundreds of non-vehicle tariff lines while, as Georgetown legal scholars Peter Harrell and Jennifer Hillman pointed out in an analysis published Aug. 3, covering no motor vehicle tariff lines at all. The action named for autos does not touch autos.
LeBlanc has said he hopes to make progress on steel and aluminum relief before the CUSMA review advances further, effectively sequencing the sectoral files ahead of the structural ones. Whether Washington will accept that sequencing is unclear. Trump told reporters in late July that CUSMA “is not important” for the United States and that his administration would rather be independent, while also saying he was working on a deal with Prime Minister Mark Carney. LeBlanc, after meeting Greer, described the discussions as successful, positive and substantive, but declined to explain why no agreement had materialised.
Industry reaction
Canada’s steelmakers have been the loudest voice for relief and the most sceptical that quota arrangements deliver it.
Catherine Cobden, president of the Canadian Steel Producers Association, has framed the sustained 50 per cent American duty in blunt terms, saying that after more than a year at that rate the situation is unsustainable and is having devastating consequences for the industry. On Ottawa’s own domestic quota regime she was similarly unsparing, telling reporters that in its current form the tariff-rate quota would do little to support the industry and that the immediate measures failed to address the crisis the sector was in. She has praised the Buy Canadian procurement policy and argued that quota protection against dumped offshore steel should become the new normal, while pressing Ottawa to widen the derivative tariff regime. Her association has consistently called for the removal of American tariffs on Canadian steel rather than their reduction, arguing in June that securing a continental steel supply requires tariff-free trade.
The distinction matters for how a quota deal would land politically. A 10 to 15 per cent in-quota rate is a large improvement over 50 per cent, but it is not zero, and it would formalise a permanent volume ceiling on an industry built around integrated North American supply chains. Producers who ship steel south for further processing and then buy it back would still be paying duty on both legs.
Aluminum producers face a different geometry. Statistics Canada data released Tuesday showed exports of unwrought aluminum and aluminum alloys fell 28.8 per cent in June, following a 50.4 per cent surge in May that reflected higher shipments to the Netherlands, Italy and Greece. That volatility is itself a signal. Canadian smelters have been redirecting metal to Europe when American economics do not work, which supports Ottawa’s diversification narrative but does little for the Quebec and British Columbia communities whose smelters were designed around American customers.
Dairy Farmers of Canada, whose sector is named in one of the three proclamations, has pushed back firmly on the discrimination finding, expressing concern about what it called revolving threats of tariffs and noting that cross-border dairy trade is already governed by CUSMA, an agreement the current American president negotiated and signed. The organisation has urged Ottawa to hold the line against foreign pressure on supply management.
The politics of not retaliating
Carney has kept retaliation formally available while refusing to deploy it before Aug. 19. He has told reporters that everything is on the table depending on the outcome of negotiations, and has declined to specify countermeasures, arguing that signalling retaliation while talks continue would be counterproductive. He has also ruled out one option outright, saying he does not see the value in using Canadian energy exports, including Alberta crude, as a bargaining chip.
Provincial leaders are less patient. Ontario Premier Doug Ford has called repeatedly for Ottawa to respond tariff for tariff and dollar for dollar if the American measures proceed, and has raised the possibility of reviving a surcharge on electricity exported to American states. Canada’s premiers have met to coordinate positions on the trade crisis. Conservative critics have characterised the government’s approach as a wait-and-see posture that has not produced a deal.
Canada’s existing counter-tariffs remain in force on American steel, aluminum and automobiles, having survived the September 2025 removal of the broader retaliatory lists covering Phase 1 goods and miscellaneous consumer products. Ottawa has justified keeping them on the grounds that the United States continues to apply sectoral tariffs without a CUSMA exemption. Those surviving counter-tariffs are also, awkwardly, the stated basis for the largest of the three Section 338 proclamations.
Economic impact
The macroeconomic picture is more resilient than the sectoral one. Statistics Canada reported on Aug. 4 that merchandise exports rose 0.4 per cent in June to a record $77.5 billion, a fifth consecutive monthly increase, with exports up 22.8 per cent over that stretch. The merchandise trade surplus widened to $3.9 billion from $3.7 billion in May, a fourth straight surplus. Exports of motor vehicles and parts rose 2.4 per cent, the fifth consecutive gain, with passenger cars and light trucks up 4.5 per cent to their highest level since March 2025 on the back of increased Canadian assembly.
Those headline numbers require careful reading. The average value of the Canadian dollar fell 1.7 cents against the American dollar in June, the largest monthly decline since October 2022. Measured in American dollars, Canadian exports actually fell 2.0 per cent and imports fell 2.1 per cent. A good deal of the record is currency translation rather than volume, although real exports did rise 1.1 per cent.
The vulnerability is concentration. Canada’s surplus with the United States narrowed to $10.0 billion in June from $11.1 billion in May, as American imports into Canada hit a record on higher purchases of computers and data centre processing units. Exports to the United States rose only 0.3 per cent. A 50 per cent duty on 554 tariff lines representing roughly US$20 billion of annual trade would not sink the aggregate, but analysts expect the pain to fall hardest on Ontario, Quebec and British Columbia, and on the small and medium-sized manufacturers that lack the margin to absorb it or the scale to relocate.
Harrell and Hillman also flagged an arithmetic problem with the American case. The administration’s own fact sheet alleges that Canadian discrimination against the American auto sector cost US$5.6 billion in lost sales, yet the corresponding proclamation imposes a 50 per cent duty on roughly US$19.3 billion of imports, implying something on the order of US$10 billion in annual duties, or nearly twice the harm the administration itself claims.
What importers and exporters should be doing
The practical calendar is short, and the compliance work does not wait on the outcome of the Washington meetings.
Classify against the actual lists. The Section 338 duties are administered through a single set of subdivisions in US Note 51, Subchapter III, Chapter 99 of the HTSUS, consolidating all three proclamations. Exporters should verify every HTSUS subheading they ship against the three annexes rather than relying on sector labels. The motor vehicles list in particular captures products with no automotive connection.
Do not rely on CUSMA. Origin qualification does not exempt goods from the Section 338 duty. Certificates of origin remain essential for Section 232 metal content calculations and for the Canadian counter-tariff regime, but they will not help at the Aug. 19 line.
Model the stacking. Because Section 338 duties apply in addition to other measures, landed cost calculations need to layer Section 338 on top of Section 122, Section 301 and any generally applicable duties and fees. Section 232 coverage is the one meaningful exclusion, and it does not appear to reach any of the listed goods.
Watch the entry timing. The duties attach to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. Eastern on Aug. 19. Bonded warehouse and foreign trade zone strategies change the arithmetic, and importers with inventory in transit should be modelling entry dates now rather than after the fact.
Prepare for quota administration. If a steel or aluminum TRQ is agreed, the operative question becomes allocation. Canadian exporters should be assembling documented historical shipment records now, by product and by customer, because quota allocation formulas invariably reward those who can prove past volumes quickly.
Revisit contracts. Force majeure, change in law, duty allocation and price adjustment clauses drafted before 2025 rarely anticipate a stacking regime of this complexity. Buyers and sellers who have not renegotiated who pays the duty are likely to discover the answer in a dispute.
Use the Canadian relief that exists. Ottawa maintains a remission process for its own counter-tariffs on American goods, along with the Large Enterprise Tariff Loan Facility and, for softwood producers, $1.2 billion in loan guarantees through the Business Development Bank of Canada. Remission for steel and aluminum inputs used in Canadian manufacturing, processing, food and beverage packaging and agricultural production has been extended, in the current iteration, to June 2027 alongside the TRQ regime.
Take diversification seriously. Ottawa launched a Strategic Exports Office within Global Affairs Canada on July 30, led in collaboration with Export Development Canada and tasked with removing trade irritants, lifting market access barriers and closing infrastructure gaps in sectors including aerospace, defence, infrastructure and energy. International Trade Minister Maninder Sidhu described it as a government-level dealmaker. A Strategic Exports Advisory Council including the heads of OpenText, Bombardier and the Canadian Chamber of Commerce will advise it. The office exists to support Carney’s stated goal of doubling non-American exports by 2035. June’s data showed exports to countries other than the United States up 0.7 per cent and the deficit with those countries narrowing to $6.1 billion from $7.4 billion, though the improvement rested largely on gold shipments to the United Kingdom.
What to watch
Three things will determine whether the quota gambit works.
The first is whether Washington will accept sectoral relief ahead of structural CUSMA changes. Greer’s congressional testimony pointing to 2027 for rules of origin work suggests the administration sees no urgency in decoupling the files.
The second is the baseline year. A quota built on 2024 volumes is relief. A quota built on 2026 volumes is ratification.
The third is the legal overhang. Litigation in the United States Court of International Trade is widely anticipated once the Section 338 duties take effect, and serious arguments exist that courts should at minimum narrow their scope. A tariff whose legal foundation is contested is a weaker negotiating instrument, and both capitals know it.
For now, Canadian exporters are being asked to prepare for a duty that may be struck down, negotiated away, or applied in full on Aug. 19. Only one of those outcomes requires no preparation, and it is not the likely one.