Ottawa pushes for relief across every Section 232 sector as a 50 per cent Section 338 tariff wall closes in on August 19, with steel and aluminum export quotas back on the negotiating table
OTTAWA, August 6, 2026
Prime Minister Mark Carney said Canadian negotiators are pressing Washington for relief across “all strategic sectors” of the economy, including autos, steel, aluminum and forest products, as the clock runs down on a 50 per cent United States tariff that is scheduled to hit roughly US$20 billion in annual Canadian exports on August 19.
Speaking to reporters on Wednesday, Carney set out the Canadian negotiating position in unusually specific terms. “Canada has been very clear: We want all 232s addressed, all strategic sectors,” he said, according to reporting by CBC News, listing “steel, aluminum, autos, forest products” and adding that autos are “very much at the core of what we’re talking about.”
The remarks landed the same week that Intergovernmental Affairs Minister Dominic LeBlanc and Janice Charette, Canada’s chief negotiator, travelled to Washington for the second time in two weeks. The Globe and Mail reported that negotiators have revived a proposal first floated last year under which Canada would accept a system of quotas on its steel and aluminum shipments to the United States in exchange for a reduction in the 50 per cent Section 232 tariffs now applied to those metals.
Carney also signalled that Ottawa is prepared to escalate if the talks fail, telling reporters that Canada is ready to “get tougher” if a deal is not reached before the deadline. He declined to handicap the outcome or to describe what a tougher posture would involve, saying only that the tone Canada has taken with its counterparts is already “quite firm.”
What is actually due on August 19
The deadline that is concentrating minds in Ottawa is not a negotiating milestone. It is the effective date of three presidential proclamations signed on July 20, 2026.
Those proclamations invoked Section 338 of the Tariff Act of 1930, a Depression era provision that authorizes the President to impose duties on a country he finds to be discriminating against United States commerce relative to other trading partners. According to a client alert published by Wiley Rein LLP on July 27, Section 338 had not been used or seriously threatened in at least 70 years. The statute caps additional duties at 50 per cent and allows them to take effect 30 days after proclamation.
The three proclamations each rest on a separate finding of Canadian discrimination: one covering dairy, one covering alcoholic beverages, and one covering motor vehicles. The Office of the United States Trade Representative said the resulting tariffs reach nearly US$20 billion in annual imports from Canada.
For Canadian exporters, the critical design feature is that the Section 338 duties apply to goods that qualify as originating under the Canada United States Mexico Agreement. Preferential CUSMA treatment, which has shielded compliant Canadian goods from most of the tariff actions taken since early 2025, provides no protection here. Nor do the proclamations carry an expiry date, although the President retains authority to suspend, revoke, supplement or amend them.
There are carve outs, and they matter. Wiley’s analysis notes that the new duties do not apply to products already subject to Section 232 tariffs, including specified steel, aluminum and copper articles, nor to goods covered by the World Trade Organization Agreement on Trade in Civil Aircraft. Reporting on the proclamations has also indicated that energy products, potash, fish and critical minerals sit outside the Section 338 action, which removes Canada’s largest resource export categories from this particular measure.
What remains inside is startlingly broad, and in many cases only loosely connected to the sectors named in the findings. The dairy proclamation reaches milk and cream, whey, lactose, fructose syrups, molasses, non alcoholic beer, peppermint oil and peptones. The alcohol proclamation covers malt beer, wine, cider, brandy and whiskies, certain paper and wooden tableware, and, in a detail that has drawn attention on both sides of the border, ice hockey and field hockey equipment.
The motor vehicle proclamation is the widest of the three, and it is where most Canadian manufacturers will find their exposure. Its coverage list runs from honey, feathers, flower bulbs and salt through Portland cement, paints and varnishes, cosmetics, candles, gelatin, fatty acids and sorbitols; then into plastics including vinyl tile flooring, sacks and bottles; animal hides, leather and travel goods; a long roster of wood products including mouldings, particle board, medium density fibreboard, plywood, veneered panels, doors and picture frames; paper products from sanitary stock to wallpaper, envelopes, notebooks and paper plates; textiles including yarns, non wovens, ropes, fabrics, apparel, curtains, tarpaulins and flags; hats, glassware, imitation jewellery, direct reduced iron and refined lead; hand tools, saw blades, razors and locks; machinery including hydraulic turbines, refrigeration equipment, filtering and packing machinery and vacuum cleaners; electronics including smartphones, storage devices, cameras, radar apparatus, monitors, projectors and fibre optic cable; motorcycles, boats and dock equipment; furniture and lighting; toys and video game consoles; Christmas ornaments; golf and fishing equipment; and certain art, antiques and collectors’ items.
The breadth is the point. Section 338 does not require that retaliatory duties fall on the same goods as the underlying grievance, so the administration was free to assemble lists calibrated for leverage rather than symmetry. A Canadian furniture maker with no involvement in dairy quota policy and no stake in provincial liquor board practices can nonetheless find its product on an annex.
How Canada arrived here
The Section 338 action is the latest layer in a tariff structure that has been rebuilt repeatedly over the past 18 months.
The first phase, imposed in March 2025 under the International Emergency Economic Powers Act, was struck down by the United States Supreme Court on February 20, 2026. The court held that the fentanyl and trade deficit tariffs levied under IEEPA against Canada, Mexico and global imports were invalid. Four days later, a new proclamation imposed a temporary 10 per cent surcharge on global imports under Section 122 of the Trade Act of 1974, with CUSMA compliant goods excluded.
What the Supreme Court decision did not disturb were the sectoral tariffs imposed under Section 232 of the Trade Expansion Act of 1962. Those remain the backbone of the United States tariff wall facing Canada, and they are what Carney means when he says Canada wants “all 232s addressed.”
The Section 232 stack has thickened steadily. Steel and aluminum duties went from 25 per cent to 50 per cent in June 2025. Autos were hit with 25 per cent duties in April 2025 and auto parts in May 2025, with CUSMA compliant parts able to enter duty free and CUSMA compliant vehicles taxed only on non United States content. Copper drew a 50 per cent tariff in August 2025. Softwood timber and lumber picked up a 10 per cent tariff in October 2025, layered on top of existing anti dumping and countervailing duties, alongside 25 per cent duties on upholstered wooden furniture, kitchen cabinets and vanities that rose to 30 and 50 per cent respectively on January 1, 2026.
In April 2026, a proclamation extended metals tariffs to the full value of steel, aluminum and copper articles and derivatives rather than only their metal content. A June 8, 2026 proclamation then partially unwound that, cutting duties on agricultural machinery and certain residential HVAC equipment from 25 to 15 per cent, extending the 15 per cent rate to some mobile industrial equipment, adding aluminum lithographic plates and steel racks to the derivative lists, and lowering the United States origin metal content threshold for preferential treatment from 95 to 85 per cent. For CUSMA compliant Canadian and Mexican goods, that proclamation set a 25 per cent tariff on non United States content with a floor of 15 per cent ad valorem on the imported product, and it fixed those terms in place until December 31, 2027.
Canada has built its own structure in parallel. Retaliatory surtaxes on United States steel, aluminum and autos remain in force, covering 313 tariff lines, after Ottawa removed the original March 2025 consumer goods lists effective September 1, 2025. In November 2025, Carney announced measures aimed at protecting domestic steel and lumber: tariff rate quotas for steel from countries without a Canadian free trade agreement were cut from 50 to 20 per cent of 2024 volumes, quotas for free trade agreement partners other than CUSMA members were cut from 100 to 75 per cent, and a new 25 per cent tariff was applied from December 26, 2025 to roughly C$10 billion of global steel derivative imports including doors, windows, wire, fasteners, bridges and wind towers. In June 2026, Ottawa added a 10 per cent provisional safeguard on global imports of canned vegetables, excluding the United States, Mexico, Chile, Israel and developing country suppliers, for a maximum of 200 days.
Layered over all of it is the CUSMA review itself. The Free Trade Commission’s review under Article 34.7(2) of the agreement was expected on July 1, 2026, and the review’s shadow hangs over every bilateral file. The agreement’s sunset architecture means that a failure to affirm the deal carries consequences well beyond the current tariff dispute.
The quota question
The revived steel and aluminum quota proposal is the most concrete thing on the table, and it deserves careful reading by anyone in the metals supply chain.
The structure being discussed is a tariff rate quota rather than a hard volume cap. Under the version reported by The Globe and Mail, a predetermined volume of Canadian steel or aluminum would enter the United States at a reduced tariff, with shipments above that threshold facing the full Section 232 rate. Inside the quota, steel would have carried a tariff in the range of 10 to 15 per cent. Outside it, shipments would have faced 25 to 50 per cent.
For Canadian mills, that is a genuine improvement on a flat 50 per cent, and it is also a structural change with long consequences. A tariff rate quota converts a price problem into an allocation problem. Someone has to decide which producers get quota, on what basis, and for how long. Historically those decisions have been made on reference period volumes, which rewards incumbents and penalizes anyone who has recently expanded capacity or entered the market. Firms that idled lines in response to the 50 per cent tariffs may find their reference volumes have collapsed at precisely the wrong moment.
Industry views on quotas are not uniform. The Canadian Steel Producers Association has argued that Ottawa’s tariff remission programs, which offset the cost of Canadian counter tariffs for certain users, do too little to push domestic firms toward diversifying away from the United States market. Unifor and the United Steelworkers have supported the protective measures Ottawa has taken on the import side, including the reduced tariff rate quota levels and the 25 per cent derivative tariff, while warning in a joint statement that United States sectoral tariffs have hit Canadian manufacturing hard and that mills have slowed or shuttered production, leaving thousands of skilled workers out of work.
Those two positions are not contradictory. They reflect a sector that wants relief on the export side and protection on the import side, and that is sceptical of arrangements which lock in a diminished share of the United States market in return for near term price relief.
Economic stakes
The direct arithmetic of the Section 338 action is straightforward enough. A 50 per cent duty on roughly US$20 billion of annual trade implies about US$10 billion in annual duty liability if trade volumes were to hold constant. They will not. At that rate, most of the affected goods simply stop moving, which means the real cost shows up as lost sales, idled capacity and stranded inventory rather than as duty remitted at the border.
The indirect effects are harder to size and probably larger. Canadian manufacturers of paper products, textiles, furniture, plastics and consumer electronics components that appear on the motor vehicle annex are, in most cases, small and medium sized firms selling into United States distribution channels on thin margins. A 50 per cent duty is not a margin problem for those firms. It is an existence problem for the affected product lines.
There is also a currency and inventory dynamic worth watching. Between now and August 19, exporters have a strong incentive to accelerate shipments, which will inflate July and early August trade figures and then produce a corresponding collapse. Anyone reading the monthly merchandise trade data in the autumn should expect that distortion and discount it accordingly.
For the metals sectors, the quota discussion has its own arithmetic. Canadian steel exports to the United States were subject to a 25 per cent retaliatory framework covering C$12.6 billion of United States steel and C$3 billion of aluminum on the Canadian side, which gives a rough sense of the scale of bilateral metals trade in both directions. A shift from a 50 per cent flat tariff to a 10 to 15 per cent in quota rate would restore meaningful volume, but only for the quota holders.
What importers and exporters should do now
For Canadian exporters, the immediate work is classification. The Section 338 annexes operate on tariff classification, not on end use or industry self description. A firm that assumes it is unaffected because it does not make dairy products, liquor or vehicles may be wrong. The motor vehicle annex in particular functions as a general purpose list, and the only reliable way to know exposure is to run the company’s actual export tariff lines against the published annexes.
Second, timing. Goods entered or withdrawn from warehouse for consumption before August 19 fall outside the new duties. Exporters with United States customers who can take delivery early have a narrow and closing window. Those without warehousing arrangements in the United States should be talking to their customers now about who bears the duty on shipments that land after the deadline, because standard Incoterms allocations will produce results that neither party has priced.
Third, contract review. Force majeure clauses rarely cover tariff changes. Price adjustment and change in law clauses sometimes do. Anyone with a fixed price supply agreement running past August 19 into the United States market should establish today whether the contract permits a price adjustment and, if not, what the exposure is.
Fourth, drawback and remission. Canada’s remission framework for its own counter tariffs has been extended repeatedly and covers goods used in manufacturing, processing, food and beverage packaging, agricultural production, and public health, safety and national security applications. Steel remission for automotive, auto parts and aerospace manufacturing and all aluminum remission were extended to June 30, 2026, and further extensions have followed. Firms importing United States inputs should confirm their current remission status rather than relying on last year’s paperwork.
Fifth, and least comfortable, contingency planning for a no deal outcome. Carney’s “get tougher” language implies further Canadian counter measures. Canadian importers of United States goods should assume that any escalation will reach product categories that Ottawa removed from its lists in September 2025, since those lists are already drafted and consulted upon.
Implications for Canadian business
The strategic picture facing Canadian firms has changed in a way that survives whatever happens on August 19.
CUSMA origin is no longer a reliable shield. That is the single most consequential lesson of the Section 338 proclamations. For a decade and a half, Canadian supply chain design has treated preferential origin as the answer to United States trade risk. Section 338 demonstrates that a statutory authority exists, and will be used, that runs straight through preferential treatment. Firms building supply chains for the next five years need to price that.
Sectoral tariffs have proven durable while emergency tariffs have proven fragile. The IEEPA tariffs lasted less than a year before the Supreme Court struck them down. The Section 232 tariffs have survived, expanded, and been locked in until the end of 2027 for metals. Any Canadian planning assumption that trade litigation will resolve the problem should be tempered by that record.
Diversification remains slow and expensive, and the numbers show it. The Canadian Steel Producers Association’s complaint about remission programs failing to incentivize diversification points at a real difficulty: remission reduces the pain of the current arrangement, which reduces the pressure to change it. Firms that have used the past 18 months to develop non United States customers are in materially better shape than those that used the period to secure relief.
Finally, the negotiation itself is now the dominant variable, and it is being conducted with a very short clock. Thirteen days remain before the Section 338 duties take effect. Carney has declined to predict the outcome, and the honest reading of his comments is that Ottawa does not know whether a deal will land. Canadian businesses should plan for both branches, and should not treat the August 19 date as a soft deadline.