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Update, September 30, 2026: the Canada import ban described below took effect at 12:01 a.m. ET on September 29, 2026. This page is the dated record of that day’s coverage. For where every US-Canada measure stands now, see US-Canada Tariffs: Where Every Measure Stands, which is kept current.
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Free. Unsubscribe anytime. Delivered securely via Substack.A Canadian Import Ban, a $50 Billion Purchasing Freeze, and a September 29 Deadline: Every Tariff Change From September 8 Through 9, 2026
Twenty active tariff, trade-remedy, and compliance developments tracked as of September 9, 2026, each one mapped to the exact tracker tab or tool where it lives. Daily Tariff News and Trade Intelligence for September 9, 2026.
Quick Answer: What Actually Changed on September 8 and 9?
On September 8, 2026, the White House moved part of the Canada tariff fight past tariffs entirely. Five new proclamations do three separate things: they turn the existing 50% Section 338 duty on specified Canadian alcoholic beverages, dairy products, and motor-vehicle-related goods into an outright import prohibition starting September 29, 2026; they revise which Canadian products carry the 50% duty at all starting September 15, 2026, removing rock salt and cement while adding ATVs and more dairy items; and they direct USTR and the General Services Administration to strip roughly $50 billion of Canadian-origin products out of federal procurement schedules. This came the same day Canada's own retaliatory tariffs, up to 50% on more than 700 US products, took effect.
The one distinction that matters most: a tariff is a cost. A prohibition is a wall. A 50% duty can be absorbed, negotiated, or passed through a price increase. Once the September 29 ban applies to a covered product, that product cannot enter the United States at any price. Treat these as two different procurement problems, not one problem that got more expensive.
Beyond Canada, three other developments are worth knowing about: a new amicus brief keeps the Section 122 refund litigation active at the Federal Circuit, Commerce Secretary Lutnick confirmed a second, broader semiconductor tariff is being built on the pharmaceutical tariff's onshoring model, and shipping risk through the Strait of Hormuz deteriorated sharply again, a logistics and insurance shock with no tariff attached to it at all.
A few terms recur constantly below, defined once here:
- Section 338: the authority behind both the existing 50% Canada tariff and the new import prohibitions, a different and much less common tool than Section 232.
- Confirmed means a rate, ban, or deadline is already in effect or already scheduled by proclamation, and belongs in your cost model or your exposure file. Active or watch means a process, negotiation, or investigation is underway with nothing imposed yet, and belongs on a watchlist instead.
Jump to any section below, or read straight through.
Jump to a Section
Key Takeaways
- Canada is now a three-date implementation project, not a single tariff. September 8 counter-tariffs are already live, September 15 changes which Canadian products carry the US 50% duty, and September 29 converts specified alcohol, dairy, and motor-vehicle-related products from a 50% tariff into an outright import ban.
- Do not model September 29 as "a higher tariff." For covered products it is a supply-continuity and import-admissibility problem. Identify affected purchase orders and shipments now.
- The White House also directed roughly $50 billion of Canadian-origin products removed from GSA's federal procurement schedules, a market-access restriction, not a customs tariff, with implementation guidance still pending.
- A new amicus brief keeps the Section 122 refund fight alive at the Federal Circuit, but the refund contingency for February 24 through July 24, 2026 duties was already logged on the free calendar before this brief was filed.
- Commerce Secretary Lutnick confirmed a second, broader semiconductor tariff is in development, modeled on the pharmaceutical tariff's onshoring-incentive structure, with no rate or scope yet.
- Shipping risk through the Strait of Hormuz deteriorated sharply again, with vessel traffic depressed, Brent above $100 a barrel, and cargo insurance reportedly running 5% to 6% of cargo value. This is a freight and insurance shock, model it separately from tariffs.
- Canada's own retaliatory tariffs are confirmed and live since September 8, 2026, covering roughly C$27.6 billion of US-origin goods at product-specific rates of 15%, 25%, or 50%.
- A minor technical fix to two China Section 301 exclusion codes carries no rate change but does require an Auto-Fill Tool update for pump parts and plastic products.
- Everything still active from the last full update remains active, unchanged: the copper smelt-and-cast paperwork rule, the quartz safeguard's filing gap, CBP's supply-chain disclosure proposal, and five recent AD/CVD orders.
How to read the status tags below. Confirmed means the rate, ban, or deadline is already in effect or already scheduled by proclamation, and it belongs in your working cost model or exposure file. Active or watch means a process, negotiation, or proposal is underway with nothing imposed yet, and it belongs on a watchlist, not in your model.
Before the Twenty: Why September 8 Changes the Whole Canada Picture
The last full update on this site covered through September 8's counter-tariffs as a live event. What follows is not a second recap of that same day, it is what changed in the hours after, once five new White House proclamations landed on top of it.
One, a tariff and a ban are not the same procurement problem. Everything you have built for Section 338 exposure so far has assumed a duty rate: absorb it, pass it through, negotiate it. An import prohibition removes that option entirely for the covered category. Sourcing alternatives, not pricing models, are the only lever left.
Two, the same package quietly touched a market you may not be watching: federal procurement. If your company sells into GSA schedules, the direction to remove Canadian-origin products is worth checking now, not after implementation guidance forces the question.
Three, litigation and posture stories keep moving even when nothing is currently payable. A new amicus brief and a confirmed-but-unscoped second chip tariff both belong on a watchlist, not in a cost model, and both are worth a line in your notes regardless.
Four, not everything in this update is a tariff at all. A sharp deterioration in Strait of Hormuz shipping safety is a freight and insurance cost problem right now, with real dollar figures attached, and it has nothing to do with any tariff schedule.
The Twenty, and Where Each One Gets Logged
Canada, Escalated
1. Canada Import Ban: Specified Alcohol, Dairy, and Motor-Vehicle Products Are Prohibited Starting September 29
Confirmed, effective September 29, 2026Current status
On September 8, 2026, President Trump signed proclamations under Section 338 of the Tariff Act of 1930, a distinct and rarely used authority from Section 232, that prohibit the importation of specified Canadian alcoholic beverages, dairy products, and motor-vehicle-related products beginning September 29, 2026 at 12:01 a.m. Eastern. This is a response to Canada's own retaliatory tariffs, also effective September 8. Reuters reports the ban covers broad categories across those three groups. Products imported before September 29 but not yet entered or withdrawn for consumption remain subject to the existing 50% Section 338 duty rather than the ban, and CBP is authorized to issue implementing instructions, which had not been published as of this writing.
The distinction to hold onto: a 50% duty is a cost that can be absorbed, negotiated, or passed through. An outright prohibition means a covered item cannot enter the United States once the ban applies, at any price.
Procurement action
Build a September 29 prohibited-import exposure file now. For every Canadian-origin SKU potentially inside the three proclamation annexes, capture HTS classification, supplier, purchase-order quantity, shipment date, expected US import date, importer of record, current inventory coverage, an alternate source if one exists, cancellation rights under the purchase contract, and the qualification lead time for any substitute supplier. Do not manage these products as ordinary tariff exposure; a spreadsheet built for absorbing a duty rate will not answer the question this ban actually asks, which is whether the shipment can legally enter the country at all after September 29.
| Date | 2026-09-29 |
| Event | Section 338 import ban takes effect on specified Canadian alcoholic beverages, dairy products, and motor-vehicle-related products |
| Program | Section 338 |
| Country | Canada |
| Impact Level | Critical |
| Status | Confirmed, not yet on the live calendar as of this writing |
| Notes | Import ban, not a tariff rate increase. Goods entered before 9/29 remain under the 50% Section 338 duty (see Story 3). CBP implementation guidance not yet published, check for a follow-up CSMS before relying on entry timing alone. |
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2. The Canadian Products Carrying the 50% Tariff Are Changing Again on September 15
Confirmed, effective September 15, 2026Current status
The same September 8 proclamation package revises the product list subject to the existing 50% Section 338 tariff, effective September 15, 2026. The White House fact sheet says rock salt and cement are being removed from the covered list, while ATVs and additional dairy products are being added. The revised list is set out in Annex I Part A (additions) and Part B (removals) of the proclamations, and the Section 338 duty continues to stack with any applicable Section 232 duty on the same product.
Procurement action
Do not leave the current Section 338 HTS table unchanged after September 14. Load the September 15 additions and removals into your tariff master data, and specifically re-test any product now facing both a Section 338 and a Section 232 duty for correct stacking treatment before the change lands.
| Date | 2026-09-15 |
| Event | Section 338 Canada product list changes: rock salt and cement removed; ATVs and additional dairy items added |
| Program | Section 338 |
| Country | Canada |
| Impact Level | High |
| Status | Confirmed, not yet on the live calendar as of this writing |
| Notes | Revised HTS 9903.03.12-9903.03.16 list, per proclamation Annex I Parts A and B. Duty continues to stack with applicable Section 232 duties. |
A revised HTS list you load once beats a landed-cost model that quietly goes wrong on September 15. Get Tariff Auto-Fill Tool
3. Canada's Own Retaliatory Tariffs Are Now Live
Confirmed, effective September 8, 2026Canada's dollar-for-dollar retaliatory tariffs on US goods took effect at 12:01 a.m. on September 8, 2026, covering roughly C$27.6 billion of US-origin imports at product-specific rates of 15%, 25%, or 50% across steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics. The tariffs apply only to goods qualifying as US-origin under Canada's own marking rules, and goods already in transit on September 8 are excluded. This one was already sitting on the free calendar as a future date before it happened; it needs no new row, only a status update from pending to active. Lives in: 90-Day Tariff Risk Calendar™ → Tariff Calendar tab, row already logged, Status field updated to Complete.
4. Federal Procurement Adds a Canada Restriction: $50 Billion in Canadian-Origin GSA Products Targeted for Removal
Confirmed executive direction, implementation developingCurrent status
The White House says the President has directed USTR and the General Services Administration to remove approximately $50 billion of Canadian-origin products from GSA's Multiple Award Schedules, the contract vehicle federal agencies buy from. Reuters separately reports the direction is intended to begin removing Canadian-origin products from federal procurement schedules in response to alleged Canadian restrictions on US companies. This is a procurement market-access measure, not a customs tariff, and no GSA or USTR implementation guidance had been published as of this writing.
Procurement action
If your company sells Canadian-origin products to US federal agencies, identify every GSA Multiple Award Schedule contract and SKU with Canadian country of origin now. Review substitute US or eligible-country products, supplier authorization status, delivery commitments already on contract, and your government-contract change rights before GSA publishes implementation guidance.
| Program | GSA Multiple Award Schedule, Canadian-origin removal |
| Directed Scope | ~$50B of Canadian-origin products |
| Authority | Presidential direction to USTR and GSA (no separate statutory citation given) |
| Status | Presidential direction confirmed; GSA/USTR implementation guidance not yet published |
| Notes | Federal-contract market-access restriction, not a customs duty. Identify affected schedule contracts and Canadian-origin SKUs now. |
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Litigation, Tariffs & Trade Talks
5. A New Amicus Brief Keeps the Section 122 Refund Fight Alive at the Federal Circuit
Confirmed filing, litigation pendingCurrent status
On September 9, 2026, the Cato Institute and George Mason University law professor Ilya Somin filed a new amicus brief with the US Court of Appeals for the Federal Circuit in State of Oregon v. United States, the case reviewing the Court of International Trade's May 7, 2026 ruling that the 10% Section 122 balance-of-payments tariff was unlawful. The brief argues Section 122 does not apply absent a fixed-exchange-rate system, and raises major-questions and nondelegation arguments, citing the Supreme Court's February 20, 2026 ruling in Learning Resources, Inc. v. Trump, which struck down the separate IEEPA tariffs. The Section 122 tariff itself already expired by statute on July 24, 2026, so it is not currently being collected, but the Federal Circuit's ruling will determine whether the roughly five months of duties collected between February 24 and July 24, 2026 are refundable. No oral argument date or ruling has been announced.
Worth knowing before you go looking for somewhere new to log this: the Section 122 refund contingency for that exact February 24 through July 24, 2026 window is already sitting on the free 90-Day Tariff Risk Calendar's Refund Opportunities tab. This brief is new supporting evidence in a pending appeal, it does not require a new tracker row, only confirmation that your own entries in that window are captured.
Procurement action
If you paid the Section 122 10% surcharge on entries between February 24 and July 24, 2026, confirm those entries are logged in your refund tracker with filing status set to monitoring, pending appeal, and hold rather than close the file until the Federal Circuit rules.
| Program Type | Section 122 (refund contingency) |
| Entry Date Range | 2026-02-24 to 2026-07-24 |
| Filing Status | Monitoring, Pending Appeal |
| Est. Refund ($) | 10% of duty paid on entries in this window |
| Notes | Also already logged on the free 90-Day Calendar's Refund Opportunities tab ("Section 122 Contingent Refund, Litigation-Dependent"). New Sept 9 Cato/Somin amicus brief is supporting evidence in the pending Federal Circuit appeal, no new row required, confirm your own entries are captured. |
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6. Commerce Confirms a Second, Broader Chip Tariff Is Coming, Built Like the Pharmaceutical Tariff
Confirmed in development, no rate or scope announcedCurrent status
At the G20 Innovation Ministerial on September 2, 2026, Commerce Secretary Howard Lutnick confirmed that a Phase Two Section 232 semiconductor tariff is in development, using the same onshoring-incentive model applied to pharmaceuticals: companies that build manufacturing capacity in the United States pay a reduced or zero tariff, companies that do not pay to access the market. This follows the narrower January 15, 2026 Phase One tariff, a 25% duty on a limited category of advanced AI-accelerator chips with seven end-use exemptions. No formal proclamation, tariff rate, product scope, or effective date has been announced for Phase Two. Some reporting suggests the scope could expand beyond narrow AI chips to servers, laptops, and gaming hardware, and an investment-linked duty-free quota structure is reportedly under discussion, though that detail traces to a single secondary source and is unverified. Separately, the 35% Advanced Manufacturing Investment Credit requires qualifying construction to begin by December 31, 2026, a deadline Congress has not extended, which could affect how companies structure onshoring commitments tied to any new chip tariff.
Procurement action
Keep this strictly on a watchlist, not in a cost model, there is no rate or HTS scope to load yet. If your company is weighing a multi-year US onshoring investment against this pending tariff structure, build that scenario now against the December 31, 2026 tax-credit construction-start deadline rather than waiting for a proclamation.
| Event | Section 232 Phase Two semiconductor tariff, onshoring-incentive model |
| Why It Matters | Could expand duty exposure beyond AI accelerator chips to servers, laptops, and gaming hardware |
| Procurement Question | Does our chip and electronics supply chain have exposure if the scope expands beyond narrow AI chips? |
| Date Added | 2026-09-09 |
A multi-year onshoring commitment weighed against an unscoped tariff is exactly the long-horizon planning problem this tier is built for. Get Tariff Scenario Strategy Kit
7. Strait of Hormuz Shipping Risk Deteriorates Sharply Again, and It Has Nothing to Do With Tariffs
Confirmed severe logistics escalation, not a tariffCurrent status
Only six commodity vessels transited the Strait of Hormuz on September 8, 2026, down from nine the prior day and well below the recent ten-day average of roughly twelve. Before the underlying conflict, roughly 125 large commercial ships moved through the strait daily. Iran said it attacked ten ships near Hormuz after the United States sank five Iranian oil tankers, the largest declared wave of vessel attacks since the conflict began, and Brent crude moved above $100 per barrel. One ENOC executive said cargo insurance can now cost 5% to 6% of cargo value, additional war-risk premiums can reach 10%, and total transit costs for some cargoes have reached $10 million to $20 million.
Procurement action
Escalate Gulf supply-chain controls now. Audit vessel identity, carrier, war-risk insurance, cargo insurance, routing, alternate ports, inventory runway, supplier ETA, and contract responsibility for extraordinary freight surcharges on any Gulf-dependent lane. Keep these costs out of your tariff variance entirely; this is a freight and insurance line, not a duty.
| Risk File | Strait of Hormuz / Gulf Trade and Logistics Risk |
| Status | Active severe disruption, escalating vessel attacks |
| Cost Impact | Cargo insurance ~5-6% of cargo value; war-risk premium up to 10%; total transit cost $10M-$20M for some cargoes |
| Affected Products | Crude oil, LNG/LPG, refined fuels, petrochemicals, chemicals, fertilizers, maritime freight generally |
| Notes | Model Gulf-routed shipments on the Data Input tab with the higher Shipping Cost/Unit; Total Landed Cost recalculates automatically, with CBP customs fees layered in from the CBP Customs Fees settings tab. Keep separate from tariff/duty variance. |
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8. A Minor Technical Fix to Two China Section 301 Exclusion Codes, No Rate Change
Confirmed, retroactive to July 1, 2026On September 2, 2026, the Federal Register published a notice of conforming amendments to product exclusions for the Section 301 China tariff action, covering pump parts (HTS 8413.91.xxxx) and plastic products (HTS 3926.90.99xx), document 2026-17925. This is a technical HTS statistical-suffix reclassification, retroactive to the July 1, 2026 effective date, and is not a substantive policy or rate change. Lives in: Tariff Auto-Fill Tool™ → Section 301 Overlay tab, update the two statistical suffixes to match the September 2 conforming amendment.
9. Germany Pharmaceutical Section 301 Hearing Is Two Weeks Out
Active investigation, no tariff currently payableUSTR's public hearing on Germany's pricing and reimbursement treatment of innovative pharmaceuticals is scheduled for September 22, 2026, at the USITC in Washington, DC, with a second day possible. Practices under review include supplemental discounts and mandatory variable-rate rebates. No Germany-specific responsive tariff schedule has been issued. A post-hearing rebuttal comment deadline follows approximately seven calendar days later, around September 29, 2026. Lives in: 90-Day Tariff Risk Calendar™ → Comment & Hearing Tracker tab.
10. The Pharmaceutical Section 232 Framework Reaches a Major Milestone on the Same September 29 Date as the Canada Ban
Confirmed, general effective date September 29, 2026Covered patented pharmaceuticals and associated ingredients carry a 100% baseline Section 232 rate starting September 29, 2026 for companies not already covered by the earlier July 31, 2026 date, with 20% treatment for qualifying onshoring plans and differentiated treatment for specified trade partners and company arrangements. Generics and biosimilars remain outside this action. This is already logged on the free calendar, but it now shares its effective date with the Canada import ban above, worth flagging as a single cross-functional customs cutover date rather than two unrelated deadlines. Lives in: 90-Day Tariff Risk Calendar™ → Tariff Calendar tab, existing September 29, 2026 row.
11. US-China Presidential Trade Discussions Expected September 24, No Relief Yet
Active negotiations, existing duties remain in forceAgriculture, non-tariff barriers, investment, and selected tariff issues remain under discussion ahead of expected presidential-level talks around September 24, 2026. No negotiated tariff reduction should be recognized in any cost model before a controlling US or Chinese implementation action is actually issued. Maintain current China duties as-is and model relief scenarios separately. Lives in: 90-Day Tariff Risk Calendar™ → Monthly Watchlist tab.
Other Active Programs, Unchanged Direction
12. Forced-Labor, Brazil, and Structural-Overcapacity Section 301 Programs All Remain Active
Confirmed and effective, or active investigationThree separate Section 301 programs continue unchanged in direction. The forced-labor Section 301 action remains a broad, confirmed tariff layer across covered economies; audit tariff engines to ensure the now-expired Section 122 surcharge is not being incorrectly stacked into current duty calculations. Brazil's separate Section 301 action, covering digital trade, electronic payments, and related issues, remains confirmed and effective with no formal USTR modification identified as of this writing. The structural excess-capacity Section 301 investigations across metals, automotive, batteries, chemicals, electronics, machinery, semiconductors, and solar products remain active with no final new tariff schedule identified. Lives in: Tariff Auto-Fill Tool™ → Section 301 Overlay tab (forced-labor, Brazil); 90-Day Tariff Risk Calendar™ → Monthly Watchlist tab (structural overcapacity).
13. Mexico Keeps Pressing for Auto and Steel Relief, and a Separate USMCA Paperwork Deadline Is Three Weeks Out
Active negotiations; one fixed federal deadlineMexico continues pressing the United States for relief from automotive and steel Section 232 tariffs, with Economy Minister Marcelo Ebrard raising both sectors with Commerce Secretary Lutnick in the most recent round of USMCA-related talks. No change in current tariff treatment resulted. Separately, and on a fixed date regardless of how those talks resolve, US Commerce requires CFO-certified US-content documentation from any importer seeking USMCA preferential treatment on automobiles imported starting December 1, 2026, due by September 30, 2026 to Autos232USMCAContent@trade.gov. Lives in: 90-Day Tariff Risk Calendar™ → Comment & Hearing Tracker tab (Sept 30 deadline); Monthly Watchlist tab (Mexico negotiations).
14. Two Separate China Deadlines Land Back to Back, November 9 and 10
Confirmed future milestones, unless USTR acts againThe current China maritime, logistics, and shipbuilding Section 301 suspension runs through 11:59 p.m. EST on November 9, 2026; during the suspension, parties do not accrue specified maritime fees or Annex V.A duties. Separately, 178 China Section 301 product exclusions (HTSUS 9903.88.69 / 9903.88.70) expire November 10, 2026 unless extended. These are two different programs landing on consecutive dates, track them separately rather than as one event. Lives in: 90-Day Tariff Risk Calendar™ → Tariff Calendar tab, both dates logged.
15. Polysilicon Section 232 and Minimum Import Prices Take Effect December 4
Confirmed future actionMinimum import prices of $21/kg for polysilicon, $100/kg for ingots and wafers, $0.22/watt for solar cells, and $0.38/watt for solar modules take effect December 4, 2026, with specified ingots and derivatives also receiving an additional 15% tariff, subject to alternative partner treatment. This gives affected importers roughly twelve weeks to link purchase price, entered value, upstream origin, and supplier certification before the cutover. Lives in: 90-Day Tariff Risk Calendar™ → Tariff Calendar tab, existing December 4, 2026 row.
16. The Expanded Beef Tariff-Rate Quota Is Mid-Tranche
Confirmed and activeThe temporary beef program's first 100,000-metric-ton, first-come-first-served tranche of expanded lean-beef trimmings (HTS 0201.30.5091, 0201.30.5097, 0202.30.5091, 0202.30.5097) runs through September 30, 2026. The second tranche opens October 1 and closes October 30; the final tranche opens October 31 and closes when filled or November 30, whichever comes first. Verify actual quota availability before contracting on in-quota economics, and keep an above-quota landed-cost fallback ready. Lives in: 90-Day Tariff Risk Calendar™ → Tariff Calendar tab.
Still Active, Carried Forward From the Last Full Update
17. The Copper Smelt-and-Cast Paperwork Rule Is Still Coming, and It Fatally Rejects, Not Flags
Confirmed requirement, cutover reported for mid-SeptemberCBP's new country-of-smelt and country-of-cast declaration requirement for copper wire and cable, HTS 8544.42.10, 8544.42.20, 8544.42.90, and 8544.49.10, under CSMS #69711865, remains unchanged since the last update. Once the cutover date hits, a missing declaration does not get flagged, it fatally rejects the entry summary under ACE error code F794. Reported cutover dates still conflict across sources between September 14 and September 19, 2026, confirm the operative date with your broker directly rather than assuming either one. Lives in: 90-Day Tariff Risk Calendar™ → Procurement Action Plan tab.
18. The Quartz Countertop Safeguard's Filing Gap Is Still Open
Active since August 15, 2026; filing guidance still pendingThe four-year Section 201/203 safeguard tariff-rate quota on quartz surface products (HTSUS 6810.99.0020, 6810.99.0040, 7020.00.6000) remains active, and CBP's Trade Remedy Team still has not issued guidance for entries where a covered HTS code attaches to merchandise that is not actually the subject product. If any SKU carries one of the three codes but is not clearly a quartz surface product, continue holding it for manual review rather than guessing at treatment. Lives in: Tariff Refund Suite™ → Filing Path Decision Model tab.
19. CBP's Supply-Chain Disclosure Proposal Still Has No Proposed Rule Text, Comments Due December 1
Proposed, published September 2, 2026CBP's "Heightened Import Disclosures for Supply Chain Visibility" pre-rule notice, docket USCBP-2026-1058, responding to Executive Order 14411, poses 64 questions to industry on export-documentation retention, upstream-supplier identification, and technology-enabled traceability, with no proposed rule text yet. Comments remain due December 1, 2026. Start the documentation inventory now rather than in November. Lives in: 90-Day Tariff Risk Calendar™ → Comment & Hearing Tracker tab.
20. Five Recent AD/CVD Orders and a Trade-Crimes Bill Now in the Senate
Confirmed, ongoingFive antidumping and countervailing-duty orders that landed in late August remain in force, unchanged: China wooden bedroom furniture (216.01% AD), China aluminum extrusions (164.29% CVD and, separately, 86.01% AD), Malaysia mattresses (42.92% AD), and Spain ripe olives (3.54% AD). Separately, H.R. 1869, the Protecting American Industry and Labor from International Trade Crimes Act, passed the House and now sits in the Senate with no committee timeline announced; it directs DOJ to stand up a dedicated trade-crimes task force targeting duty evasion and transshipment, and creates no new tariff on its own. Check any of these five countries or product codes directly against your file if they appear in your supply chain. Lives in: Tariff Auto-Fill Tool™ → Master Rate Table tab (AD/CVD orders); 90-Day Tariff Risk Calendar™ → Monthly Watchlist tab (H.R. 1869).
How to Use This Page
Start with your own exposure, not the list order. If Canada is anywhere in your supply chain, developments 1 through 4 are your highest-priority reading, and the September 29 ban deserves a same-day look even if you only skim the rest. If you touch semiconductors, pharmaceuticals, or Gulf-routed freight, developments 6, 7, and 10 apply directly. Developments 17 through 20 have not changed since the last full update, and are here so nothing quietly disappears from view.
Confirmed items already belong in your cost model or exposure file: Canada's Section 338 duty and its September 15 scope change, Canada's retaliation tariff, the September 29 import ban, the pharmaceutical 232 milestone, the polysilicon MIP program, the beef TRQ tranches, and each AD/CVD order where the HTS code and country match your file.
Watch and active items belong on a scenario or watchlist tab, not a rate table: the $50 billion GSA procurement direction, the Section 122 amicus brief, the Phase Two chip tariff, the Germany pharma investigation, US-China talks, the structural-overcapacity investigations, and Mexico's negotiating track. Model them. Do not pay them until they become law.
The single most valuable move on this page is building the September 29 exposure file. Everything else here is either already logged, already modeled, or still a watchlist item. The Canada import ban is the one genuinely new procurement problem in this update, and it has a three-week runway. Build that file now, not the week of September 22.
Start Here, Free -- 90-Day Tariff Risk Calendar™
Six tabs: Dashboard, Tariff Calendar, Comment & Hearing Tracker, Refund Opportunities, Procurement Action Plan, and Monthly Watchlist. The September 15 scope change, the September 29 import ban, and the new Phase Two chip-tariff watchlist item in this article are exactly the kind of entries this calendar's rolling three-month window should carry.
Also Free -- HTS Tariff Rate Lookup
Check any HS code against current general duty, Section 301, Section 232, and Section 338 status before you commit a number to a landed-cost model. For the revised Canada product list, the China 301 exclusion-code fix, and the five AD/CVD orders in this article, cross-check the specific HTS heading directly rather than assuming.
Frequently Asked Questions
Is the US actually banning Canadian imports now?
Yes, for specific categories. On September 8, 2026, President Trump signed proclamations that convert part of the existing 50% Section 338 tariff on Canadian alcoholic beverages, dairy products, and motor-vehicle-related products into an outright prohibition on importation, taking effect September 29, 2026 at 12:01 a.m. Eastern. Covered goods imported before that date but not yet entered for consumption remain subject to the 50% tariff rather than the ban. This is separate from a second change, also signed September 8, that revises which Canadian products carry the 50% tariff at all starting September 15, 2026, removing rock salt and cement and adding ATVs and additional dairy items.
What is the $50 billion GSA procurement story about?
The White House says the President has directed USTR and the General Services Administration to remove approximately $50 billion of Canadian-origin products from GSA's Multiple Award Schedules, the catalog federal agencies buy from. This is a federal-procurement market-access restriction, not a customs tariff, and implementation guidance from GSA and USTR had not been published as of September 9, 2026. Any company selling Canadian-origin products to federal agencies under a GSA schedule contract should identify affected SKUs and contracts now.
Is the Section 122 tariff still being charged, and what does the new amicus brief change?
No, the Section 122 balance-of-payments surcharge is not being charged. It expired at its 150-day statutory limit on July 24, 2026. What is still active is the fight over refunding the roughly five months of duties collected between February 24 and July 24, 2026, now on appeal at the Federal Circuit in State of Oregon v. United States. On September 9, 2026, the Cato Institute and law professor Ilya Somin filed a new amicus brief arguing Section 122 does not apply outside a fixed-exchange-rate system. No oral argument date or ruling has been announced. This refund contingency was already logged on the free 90-Day Tariff Risk Calendar's Refund Opportunities tab before this brief was filed.
Is there a second chip tariff coming after the January 2026 one?
Commerce Secretary Howard Lutnick confirmed at the September 2, 2026 G20 Innovation Ministerial that a Phase Two Section 232 semiconductor tariff is in development, using the same onshoring-incentive structure applied to pharmaceuticals: companies that build US manufacturing capacity pay a reduced or zero rate, companies that do not pay to access the market. This follows the narrower January 15, 2026 Phase One tariff, a 25% duty on a limited category of AI-accelerator chips. No proclamation, rate, product scope, or effective date has been announced for Phase Two as of September 9, 2026; some reporting suggests the scope could expand to servers, laptops, and gaming hardware, though that detail comes from a single secondary source.
Are Canada's own retaliatory tariffs on US goods already in effect?
Yes. Canada's retaliatory tariffs of 15%, 25%, or 50% by product on more than 700 US tariff lines took effect September 8, 2026, covering an estimated C$27.6 billion of US-origin imports, following the collapse of bilateral trade talks on August 22, 2026. The tariffs apply only to goods qualifying as US-origin under Canada's own marking rules, and goods already in transit on the effective date are excluded.
Why did shipping costs through the Strait of Hormuz spike again?
Vessel traffic through the Strait of Hormuz fell to six commodity vessels on September 8, 2026, down from nine the day before and well below the recent ten-day average of roughly twelve, after Iran said it attacked ten ships near Hormuz following the US sinking of five Iranian oil tankers. Brent crude moved above $100 per barrel, and one industry executive said cargo insurance can now run 5% to 6% of cargo value, with total transit costs for some cargoes reaching $10 million to $20 million. This is a logistics and insurance shock, not a tariff, and should be modeled and reforecast separately from duty exposure.
Editorial Note
This briefing is produced for informational and educational purposes only. It does not constitute legal, financial, or trade compliance advice. Always consult licensed customs brokers, trade attorneys, and compliance professionals before making tariff-related business decisions. Several facts in this update were triangulated through secondary legal and trade-press sources rather than direct access to CBP.gov and USTR.gov, whose primary pages were partially inaccessible during research. A direct CBP.gov and USTR.gov check is recommended before this content is treated as a final word on implementation guidance, especially for the September 29 import ban and the September 15 product-scope change.
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Where do U.S. and Canada tariffs stand, what actions should importers take?
Canada's dollar-for-dollar retaliatory tariffs (up to 50% under CBSA Notice 26-23) are now live alongside Section 338 baseline duties, while new copper smelt-and-cast rules risk stopping entries cold with fatal ACE rejections. Below are the exact procurement actions, HTSUS codes, and cross-border filing steps I am actively taking across client landed-cost models and risk calendars as a Trade and Tariff Risk Strategist.
The Tariff Operating System™
Start with a free resource or select a complete toolkit. Every tool below reads the same underlying structure, so the work you do in one carries into the next. You pay once. Every update after that, including this one, is included.
90-Day Tariff Risk Calendar™ Free Track critical tariff deadlines, comment periods, refund windows, and team actions in a practical 90-day dashboard. Get Free Access → 
US Tariff Rate Lookup Free Look up current US tariff rates by HS code and country, with a free companion tariff-rate export. Get Free Access → 
Tariff Auto-Fill Tool™ $97 Auto-populate HS codes, duty rates, and landed-cost estimates across your product catalog, including Section 301 and 232 overlays. View Checkout → 
Tariff Playbook Suite™ $27 Plug-and-play calculators, checklists, and action plans, with 60+ live formulas and auto-calculating dashboards. View Checkout → 
Fast Track Executive Briefing Kit™ $19 Executive-ready templates, calculator, and slide deck to communicate tariff impact to leadership fast. View Checkout → 
Tariff Refund Suite™ $197 Templates, trackers, and step-by-step guides to file CBP protests and claim tariff refunds and duty drawback. View Checkout → 
Tariff Impact Automation Suite™ $199 Excel dashboards, supplier-risk alerts, and scenario planners for tariff cost tracking and sourcing decisions. View Checkout → 
Tariff Scenario Strategy Kit™ $449 Premium scenario modeling with scoring, automation, and an integrated duty-drawback calculator. View Checkout → 
Strategic Command Suite™ $849 Scenario planning, boardroom briefing, and supply-chain tools for advanced tariff strategy and communication. View Checkout → 
Tariff Defense Masterplan™ $1,299 Enterprise dashboards, strategy, automation, and executive deliverables for tariff risk, compliance, and crisis management. View Checkout → NewsLetter and official Channels
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