US 50% Section 338 Tariff on Canadian Goods: Oct 30, 2026 Changes
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Summary
On October 23, 2026, the President signed a proclamation under section 338 of the Tariff Act of 1930 changing which products of Canada are subject to the additional 50% ad valorem duty first imposed by Proclamation 11048. 22 HTSUS subheadings are removed from the duty and 100 are added. The rate (50%) is unchanged.
The fact sheet describes the removals as including plywood sheets, some paper products, certain machinery and refrigeration equipment, and certain packing crates and boxes, replaced with certain valves, carpets, waste products and others.
Key dates
| Date | Change |
|---|---|
| Jul 20, 2026 | Proclamation 11048 imposes additional duties to offset Canadian discrimination with respect to motor vehicles (originally effective Aug 19, 2026). |
| Aug 18, 2026 | Proclamation 11056 temporarily suspends the effective date for 3 days. |
| Aug 22, 2026 12:01 a.m. ET | Suspension lapses; duties take effect. |
| Sep 8, 2026 | Proclamation 11065 modifies product scope. |
| Oct 23, 2026 | This proclamation further modifies scope. |
| Oct 30, 2026 12:01 a.m. ET | Changes apply to goods entered for consumption, or withdrawn from warehouse for consumption, on or after that time. |
Legal authority
The legal authorities are section 338 of the Tariff Act of 1930 (19 U.S.C. 1338); section 301 of title 3, U.S. Code; and section 604 of the Trade Act of 1974 (19 U.S.C. 2483). Section 338 allows additional duties up to 50% ad valorem.
The HTSUS change is made in subdivision (b)(3) of U.S. note 51 to subchapter III of chapter 99 (Annex II). CBP may issue technical corrections to the annexes via Federal Register notice.
How it applies
The duty applies in addition to Section 232 duties (Trade Expansion Act of 1962). Per the White House fact sheet, it applies regardless of whether a good originates under USMCA. Newly added products are exempt if they are civil aircraft or aircraft parts meeting General Note 6 of the HTSUS.
Product descriptions are for information only and do not delimit scope; scope questions go to CBP.
Key deadline
12:01 a.m. ET, October 30, 2026
9:01 p.m. PT, October 29, 2026 ·
Am I affected?
This only checks the codes changed by this proclamation, not the full list of products already covered under Proclamation 11048 as amended. Confirm with CBP or a licensed customs broker.
Cost impact estimator
Extra Section 338 duty (50% × value): —
For goods subject to Section 338, the 50% duty applies in addition to any Section 232 duties. Per the White House fact sheet, USMCA origin does not exempt goods. Estimate only; excludes regular duties, Section 232 duties and fees. Customs value rules apply.
Steps to consider
General guidance, not legal advice.
Canadian exporter
Review these steps with your US customer/importer.
- Confirm the exact HTSUS classification of each product against the added/removed lists.
- Check timing: the change applies to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. ET October 30, 2026 (per the proclamation).
- Model landed cost and pricing with the 50% additional duty.
- Review Incoterms and contract price clauses to see who pays US duty (e.g., DDP vs DAP).
- Review country of origin documentation (the duty applies to products of Canada).
- Check whether Section 232 duties also apply; the Section 338 duty applies in addition to them.
- Note USMCA origin does not exempt goods from this duty (per the fact sheet).
- Consider alternative sourcing or markets (general guidance).
- For removed items: plan to resume or expand shipments from Oct 30, 2026.
- Talk to a licensed customs broker or CBP about your specific goods.
US importer of Canadian goods
Review these steps for your entries.
- Confirm the exact HTSUS classification of each product against the added/removed lists.
- Check timing: the change applies to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. ET October 30, 2026 (per the proclamation).
- Model landed cost and pricing with the 50% additional duty.
- Review Incoterms and contract price clauses to see who pays US duty (e.g., DDP vs DAP).
- Review country of origin documentation (the duty applies to products of Canada).
- Check whether Section 232 duties also apply; the Section 338 duty applies in addition to them.
- Note USMCA origin does not exempt goods from this duty (per the fact sheet).
- Consider alternative sourcing or markets (general guidance).
- For removed items: plan to resume or expand shipments from Oct 30, 2026.
- Talk to a licensed customs broker or CBP about your specific goods.
100 HTSUS codes added (50% applies from Oct 30, 2026)
| HTSUS | Description |
|---|---|
| 1806.10.05 | Cocoa powder, sweetened, with less than 65% by dry weight of sugar, described in General Note 15 of the HTSUS |
| 1806.10.10 | Cocoa powder, sweetened, with less than 65% by dry weight of sugar, subject to additional U.S. note 1 to chapter 18 |
| 1806.10.15 | Cocoa powder, sweetened, with less than 65% by dry weight of sugar, not subject to general note 15 or additional U.S. note 1 to chapter 18 |
| 1806.10.22 | Cocoa powder, containing over 65% but less than 90% by dry weight of sugar, described in general note 15 of the HTSUS |
| 1806.10.24 | Cocoa powder, containing over 65% but less than 90% by dry weight of sugar, described in additional U.S. note 2 to chapter17: and U.S. note 7 to chapter 17 |
| 1806.10.28 | Cocoa powder, containing over 65% but less than 90% by dry weight of sugar, described in additional U.S. note 2 to chapter 17: not subject to additional U.S. note 7 to chapter 17 |
| 1806.10.34 | Cocoa powder, containing over 65% but less than 90% by dry weight of sugar, nesoi, described in additional U.S. note 1 to chapter 18 |
| 1806.10.38 | Cocoa powder, containing over 65% but less than 90% by dry weight of sugar, nesoi, not subject to additional U.S. note 1 to chapter 18 |
| 1806.10.43 | Cocoa powder, containing 90% or more by dry weight of sugar, described in General Note 15 of the HTSUS |
| 1806.10.45 | Cocoa powder, containing 90% or more by dry weight of sugar, described in additional U.S. note 2 to chapter 17: subject to additional U.S. note 7 to chapter. 17 |
| 1806.10.55 | Cocoa powder, containing 90% or more by dry weight of sugar, described in additional U.S. note 2 to chapter 17: not subject to additional U.S. note 7 to chapter 17 |
| 1806.10.65 | Cocoa powder, containing 90% or more by dry weight of sugar, nesoi, described in additional U.S. note 1 to chapter 18 |
| 1806.10.75 | Cocoa powder, containing 90% or more by dry weight of sugar, nesoi |
| 3208.20.00 | Paints and varnishes (including enamels and lacquers) based on acrylic or vinyl polymers in a nonaqueous medium |
| 3214.10.00 | Glaziers' putty, grafting putty, resin cements, caulking compounds and other mastics; painters' fillings |
| 3305.10.00 | Shampoos |
| 3401.11.50 | Soap, nesoi; organic surface-active products used as soap, in bars, cakes, pieces, soap-impregnated paper, wadding, felt, for toilet use |
| 3402.50.51 | Preparations of organic surface-active agents, put up for retail sale, not containing any aromatic or modified aromatic surface-active agent |
| 3403.19.50 | Lubricating preparations containing less than 50% by weight of petroleum oils or of oils from bituminous minerals |
| 3403.99.00 | Lubricating preparations (incl. lubricant-based preparations), nesoi |
| 3404.90.51 | Artificial waxes and prepared waxes, nesoi |
| 3822.19.00 | Other diagnostic or laboratory reagents, other than for malaria, Zika or blood- grouping |
| 3822.90.00 | Certified reference materials relating to diagnostic or laboratory reagents |
| 3825.10.01 | Residual products of the chemical or allied industries, nesoi; Municipal waste |
| 3825.20.00 | Residual products of the chemical or allied industries, nesoi; Sewage sludge |
| 3825.30.00 | Residual products of the chemical or allied industries, nesoi; Clinical waste |
| 3907.61.00 | Polyethylene terephthalate, having a viscosity number of 78 ml/g or higher |
| 3909.50.10 | Polyurethanes, elastomeric, in primary forms |
| 3918.10.20 | Vinyl flooring, excluding vinyl tile |
| 3926.90.30 | Parts for yachts or pleasure boats of heading 8903 and watercraft not used with motors or sails, of plastics |
| 4016.91.00 | Floor covering and mats, of noncellular vulcanized rubber other than hard rubber |
| 4409.10.05 | Coniferous wood continuously shaped along any of its ends, whether or not also continuously shaped along any its edges or faces |
| 4411.12.10 | MDF , <= 5mm thick, not mechanically worked or surface covered |
| 4411.12.90 | MDF, <= 5mm thick, not for construction, nesoi |
| 4411.92.10 | Fiberboard of a density exceeding 0.8 g/cm3, not mechanically worked or surface covered |
| 4415.10.30 | Packing boxes and cases of wood with solid sides, lids and bottoms |
| 4418.75.70 | Assembled wood flooring panels, other than of bamboo, other than for mosaic, multilayer, having a face ply less than or equal to 6 mm in thickness |
| 4418.91.91 | Builders' joinery and carpentry of wood, of bamboo, other than drilled or notched lumber studs |
| 4421.20.20 | Wooden coffins not of bamboo |
| 4421.99.60 | Skewers, candy sticks, ice cream sticks, tongue depressors, drink mixers and similar wares, other than toothpicks, of wood other than bamboo |
| 4802.56.70 | Paper or paperboard for writing, printing, or other graphic purpose, with weight between 40g/m2-150g/m2, not over 10% fiber by mechanical or chemical process, other sized sheets |
| 4804.31.60 | Uncoated, unbleached kraft paper, nesoi, in rolls or sheets, weighing 150 g/m2 or less |
| 4807.00.94 | Composite paper and paperboard, nesoi, not surface-coated or impregnated, in rolls or sheets |
| 4811.41.10 | Self-adhesive paper and paperboard, in strips or rolls over 15cm wide or rectangular sheets with one side over 36cm and other side over 15cm in the unfolded state |
| 4811.59.20 | Bleached or nonbleached printing paper, coated, impregnated or covered with plastics, in strips or rolls over 15cm wide or certain size sheets |
| 4811.59.40 | Bleached or nonbleached paper and paperboard, nesoi, coated, impregnated, or covered with plastics, in certain size strip, rolls, or sheets |
| 4819.30.00 | Sacks and bags, having a base of a width of 40 cm or more, of paper, paperboard, cellulose wadding or webs of cellulose fibers |
| 4821.90.20 | Pressure-sensitive paper and paperboard labels, not printed |
| 5701.10.16 | Carpets & other textile floor coverings, hand-knotted or hand-inserted, with over 50% by weight of the pile of fine animal hair, nesoi |
| 5701.10.40 | Carpets and other textile floor coverings, of wool or fine animal hair, hand-hooked (tufts were inserted and knotted by hand or hand tool) |
| 5701.10.90 | Carpets and other textile floor coverings, of wool or fine animal hair, not hand-hooked, not hand knotted during weaving |
| 5701.90.10 | Carpet and other textile floor covering, knotted, of textile materials (not of wool or fine animalhair) nesoi, pile inserted & knotted during weaving or knitting |
| 5701.90.20 | Carpet & other textile floor covering, knotted, of text materials (not of wool or fine animal hair) nesoi, not with pile inserted & knotted during weaving/knitting) |
| 5702.10.90 | Kelem, Schumacks, Karamanie and similar hand-woven rugs, other than certified hand-loomed and folklore products |
| 5702.20.10 | Floor coverings of coconut fibers (coir), woven, not tufted or flocked, with pile |
| 5702.20.20 | Floor coverings of coconut fibers (coir), woven, not tufted or flocked, other than with pile |
| 5702.31.10 | Wilton, velvet and like floor coverings of pile construction, woven, not tufted or flocked, not made up, of wool or fine animal hair |
| 5702.31.20 | Carpets and other textile floor coverings of pile construction, woven, not tufted or flocked, not made up, of wool orfine animal hair, nesoi |
| 5702.32.10 | Wilton, velvet and like floor coverings of pile construction, woven, not tufted or flocked, not made up, of man-made textile materials |
| 5702.32.20 | Carpets & other textile floor coverings of pile construction, woven, not tufted or flocked, not made up, of man-made textile materials, nesoi |
| 5702.39.20 | Carpets and other textile floor coverings of pile construction, woven, not tufted or flocked, not made up, of other textile materials, nesoi |
| 5702.41.10 | Wilton, velvet and like floor coverings of pile construction, woven, not tufted or flocked, made up, of wool or fine animal hair |
| 5702.41.20 | Carpets and other textile floor coverings of pile construction, woven, not tufted or flocked, made up, of wool or fine animal hair, nesoi |
| 5702.42.10 | Wilton, velvet and like floor coverings of pile construction, woven, not tufted or flocked, made up, of man-made textile materials |
| 5702.42.20 | Carpets and other textile floor coverings, of pile construction, woven, not tufted or flocked, made up, of man-made textile materials, nesoi |
| 5702.49.10 | Carpets not other textile floor coverings of pile construction, woven, not tufted or flocked, made up, of cotton |
| 5702.49.20 | Carpets & other textile floor coverings of pile construction, woven, not tufted or flocked, made up, of other textile materials, nesoi |
| 5702.50.20 | Carpets & other textile floor coverings, not of pile construction, woven but not on a power-driven loom, not made up, of wool or fine animal hair |
| 5702.50.40 | Carpets & other textile floor coverings, not of pile construction, woven, not made up, of wool or fine animal hair, nesoi |
| 5702.50.52 | Carpets & other textile floor coverings, not of pile construction, woven, not made up, of man-made textile materials |
| 5702.50.56 | Carpets & other textile floor coverings, not of pile construction, woven, not made up, of cotton |
| 5702.50.59 | Carpets & other textile floor coverings, not of pile construction, woven, not made up, of other textile materials, nesoi |
| 5702.91.40 | Carpets & other textile floor coverings, not of pile construction, woven nesoi, made up, of wool or fine animal hair, nesoi |
| 5702.92.10 | Hand-loomed carpet & other textile floor coverings, not of pile construction, woven, made up, of man-made textile materials, nesoi |
| 5702.92.90 | Carpet & other textile floor coverings, not of pile construction, woven, made up, of man-made textile materials, nesoi |
| 5702.99.05 | Hand-loomed carpets and other textile floor coverings, not of pile construction, woven, made up, of cotton |
| 5702.99.15 | Carpets and other textile floor coverings, not of pile construction, woven, made up, of cotton, nesoi |
| 5702.99.20 | Carpets & other textile floor coverings, not of pile construction, woven, made up, of other textile materials, nesoi |
| 5703.10.20 | Hand-hooked carpets and other textile floor coverings, tufted, whether or not made up, of wool or fine animal hair |
| 5703.10.80 | Carpets and other textile floor coverings, tufted, whether or not made up, of wool or fine animal hair, nesoi |
| 5703.21.00 | Turf, tufted, whether or not made up, of nylon or other polyamides |
| 5703.29.10 | Carpets and other textile floor coverings, other than turf, tufted, whether or not made up, of nylon or other polyamides, hand-hooked |
| 5703.29.20 | Carpets and other textile floor coverings, other than turf, tufted, whether or not made up, of nylon or other polyamides, not hand-hooked, nesoi |
| 5703.31.00 | Turf, tufted, whether or not made up, of man-made textile materials (not nylon/other polyamides) |
| 5703.39.10 | Carpets & other textile floor coverings, tufted, whether or not made up, of man-made materials (not nylon/other polyamides), hand-hooked |
| 5703.90.00 | Carpets and other textile floor coverings, tufted, whether or not made up, of other textile materials, nesoi |
| 5704.10.00 | Carpet tiles of felt, not tufted or flocked, whether or not made up, having a maximum surface area of 0.3 m2 |
| 5704.20.00 | Carpet tiles of felt, not tufted or flocked, whether or not made up, having a maximum surface area exceeding 0.3m2 but not exceeding 1m2 |
| 5704.90.01 | Carpets and other textile floor coverings of felt, not tufted or flocked, whether or not made up, other surface area |
| 5705.00.10 | Carpets and other textile floor coverings, whether or not made up, of coir, nesoi |
| 5705.00.20 | Carpets and other textile floor coverings, whether or not made up, of other material nesoi |
| 8415.10.30 | Window or wall type air conditioning machines, self-contained |
| 8418.30.00 | Freezers of the chest type, not exceeding 800 liters capacity, electric or other |
| 8467.29.00 | Electromechanical tools for working in the hand, other than drills or saws, with self-contained electric motor |
| 8481.80.30 | Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, hand operated, of iron or steel, nesoi |
| 8903.93.05 | Canoes, of a length not over 7.5m |
| 9018.90.60 | Electro-surgical instruments and appliances nesoi, other than extracorporeal shock wave lithotripters and parts and accessories thereof |
| 9023.00.00 | Instruments, apparatus and models, designed for demonstrational purposes, unsuitable for other uses, and parts and accessories thereof |
| 9027.30.80 | Nonelectrical spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared) |
| 9506.99.05 | Archery articles and equipment, and parts and accessories thereof |
22 HTSUS codes removed (50% no longer applies from Oct 30, 2026)
| HTSUS | Description |
|---|---|
| 1212.21.00 | Seaweeds and other algae, fresh, chilled, frozen or dried, whether or not ground, fit for human consumption |
| 3920.20.00 | Nonadhesive plates, sheets, film, foil and strip, noncellular, not reinforced or combined with other materials, of polymers of propylene |
| 3923.10.90 | Other boxes, cases, crates and similar articles for the conveyance or packing of goods, of plastics |
| 3923.21.00 | Sacks and bags (including cones) for the conveyance or packing of goods, of polymers of ethylene |
| 4412.33.06 | Plywood sheets not over 6 mm thick, birch face ply, not surface covered beyond clear or transparent |
| 4412.33.26 | Plywood sheets not over 6 mm thick, walnut face ply, not surface covered beyond clear or transparent |
| 4412.33.32 | Plywood sheets not over 6 mm thick, outer ply of specified nonconiferous wood excluding walnut and birch, not surface covered beyond clear or transparent |
| 4412.33.57 | Plywood sheets not over 6 mm thick, outer ply of specified nonconiferous wood including birch and walnut, surface covered beyond clear or transparent |
| 4412.34.26 | Plywood sheets not over 6 mm thick, outer ply of nonconiferous wood not covered beyond clear or transparent |
| 4412.34.32 | Plywood sheets not over 6 mm thick, outer ply of nonconiferous wood not beyond clear or transparent |
| 4412.34.57 | Plywood sheets not over 6 mm thick, outer ply of nonconiferous wood not clear or transparent |
| 4811.51.20 | Bleached paper and paperboard, coated, impregnated or covered with plastics, weighing more than 150 g/m2, 0.3mm or more in thickness, in strips or rolls over 15 cm wide or in rectangular sheets exceeding 36 cm on one side and 15 cm on the other |
| 4811.51.40 | Bleached paper and paperboard, coated, impregnated or covered with plastics, weighing more than 150 g/m2, less than 0.3 mm in thickness, in strips or rolls over 15 cm wide or in rectangular sheets exceeding 36 cm on one side and 15 cm on the other |
| 4819.10.00 | Cartons, boxes and cases of corrugated paper or paperboard |
| 4819.40.00 | Sacks and bags, nesoi, including cones, of paper, paperboard, cellulose wadding or webs of cellulose fibers |
| 4823.70.00 | Molded or pressed articles of paper pulp |
| 4823.90.10 | Articles of paper pulp, nesoi |
| 8418.69.01 | Refrigerating or freezing equipment nesoi |
| 8419.89.95 | Industrial machinery, plant or equipment for the treatment of materials, by process involving a change in temperature, nesoi |
| 8422.30.91 | Machinery for filling, closing, sealing, capsuling or labeling bottles, cans, boxes or other containers; machinery for aerating beverages; nesoi |
| 8422.40.91 | Packing or wrapping machinery, nesoi |
| 8433.60.00 | Machines for cleaning, sorting or grading eggs, fruit or other agricultural produce |
Canada impact
This is a US measure on Canadian exports to the US. As of October 23, 2026, Canada's own surtaxes on US goods are unchanged by this proclamation; this page will be updated if Canada announces changes.
Frequently asked questions
When do the changes take effect?
12:01 a.m. eastern time on October 30, 2026, for goods entered or withdrawn from warehouse for consumption.
What is the rate?
50% ad valorem, in addition to Section 232 duties.
Does USMCA origin exempt goods?
No; the fact sheet says the tariffs apply regardless of USMCA origin.
How many products changed?
100 HTSUS subheadings added, 22 removed.
Are aircraft parts covered?
Newly added articles are not subject to the duty if they are civil aircraft or aircraft parts meeting General Note 6 of the HTSUS.
How do I check if my product is affected?
Use the Am I affected? checker with a 6–10 digit HS/HTSUS code or a product keyword, and confirm the exact HTSUS classification against the added and removed lists. The checker only checks codes changed by the October 23, 2026 proclamation, not the full list already covered under Proclamation 11048 as amended. Confirm your specific goods with CBP or a licensed customs broker.
References
This page summarizes official US government documents for information only. It is not legal advice. Confirm classification and duty treatment with a licensed customs broker or U.S. Customs and Border Protection (CBP).