For Canada lanes, the only date that matters now is the entry date

First-ever Section 338 duties put an additional 50% on listed Canadian goods from August 19 — no USMCA shield, no in-transit exception, and storage workarounds that mostly fail.

Read This First

• Signal: Three proclamations signed July 20 impose an additional 50% duty on listed Canadian goods under Section 338 of the Tariff Act of 1930 — the first time the statute has ever been used to impose duties.
• Exposure: USTR puts the covered lists at nearly $20 billion in annual imports from Canada. Coverage is HTS-line specific and sweeps well beyond the three named sectors — from cement and plywood to furniture, toys, and hockey sticks.
• Watch dates: Duties attach to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. ET on August 19, 2026. As published, there is no in-transit exception.
• First move: Confirm annex coverage for every Canadian-origin SKU at the eight-digit HTS level this week. Do not rely on product descriptions or on USMCA origin — neither controls the outcome.

Bottom Line

The August 19 action changes the operating assumptions that Canada-lane teams have relied on for eighteen months.

First, USMCA origin does not shield these goods. The proclamations apply the 50% duty to covered products regardless of USMCA qualification — the first broad U.S. tariff action against Canada with no originating-goods carve-out. Second, the duty follows the entry date, not the ship date: a container that arrives August 18 but enters August 19 pays the full amount. Third, the usual storage workarounds fail by design — bonded-warehouse withdrawals after the effective date are expressly covered, and foreign-trade-zone admissions on or after August 19 must take privileged foreign status.

The window between now and August 19 is a genuine, known-return decision point for storable covered goods. It is also a classification exercise with a 50-point rate differential riding on eight-digit precision.

The Clearance Brief

1. Section 338 moved from threat to tool

What changed: On July 20, 2026, the President signed three proclamations invoking Section 338 of the Tariff Act of 1930, imposing an additional 50% ad valorem duty — the statutory maximum — on listed Canadian goods. The three actions respond to Canada's retaliatory motor-vehicle surtax, provincial delisting of U.S. alcoholic beverages, and the design of Canada's cheese tariff-rate quotas. The proclamations were published in the Federal Register on July 23 and take effect August 19, exactly the thirty-day statutory minimum after signing.

Section 338 requires no investigation, no public comment, and no report — only a presidential finding. It carries no time limit, and it can be suspended, amended, or escalated at any time. Its ultimate sanction, never used, is exclusion of a country's goods from importation entirely.

Operator impact: These duties can be switched off overnight in a negotiation — or extended indefinitely. Planning should treat both outcomes as live. The statute's flexibility is itself the operational fact.

What to do next: Treat the annex lists, published with the proclamations, as the only authority on coverage. Classification questions route to CBP; where the stakes justify it, a binding ruling request is now worth the effort.

2. USMCA origin will be the most expensive misconception of the month

What changed: Since March 2025, USMCA-originating goods were exempted from each successive broad U.S. tariff action against Canada. Section 338 breaks that pattern deliberately: the annex notes state that products eligible for special tariff treatment remain subject to the additional duty. A valid USMCA claim still removes the base MFN duty — it does nothing about the additional 50 points.

Operator impact: Teams conditioned to answer every Canada-tariff question with "is it USMCA-qualified?" will misprice covered goods. Suppliers offering certificates of origin as reassurance are answering the wrong question.

What to do next: Rewrite the Canada landed-cost check so annex coverage is tested before origin. Keep doing USMCA origin work — it still governs base rates, Section 232 content calculations, and Canada-side treatment — but stop presenting it as protection against this action.

3. The storage workarounds fail by design

What changed: The proclamations cover goods "entered for consumption, or withdrawn from warehouse for consumption" on or after the effective date. Goods placed in a bonded warehouse before August 19 but withdrawn after still pay the new duty. Merchandise admitted to a foreign-trade zone on or after August 19 must take privileged foreign status, locking in liability on eventual entry. The suspended de minimis exemption offers no relief, and no product-exclusion process has been announced.

Operator impact: The only clean position for covered goods already in motion is duty-paid entry before 12:01 a.m. ET on August 19, followed by ordinary commercial warehousing. Deferral structures postpone the payment without avoiding it.

What to do next: For storable covered SKUs with reliable demand over the next one to two quarters: pull confirmed orders forward, book cross-border trucking and broker capacity now — mid-August congestion is predictable — and instruct brokers to file entries for consumption promptly on arrival rather than letting freight sit. Build a buffer: target entry by August 14, not August 18. Do not stockpile beyond one to two quarters of forward demand; these duties can vanish as quickly as they arrived.

4. IEEPA refund execution is now a filing exercise

What changed: CBP's Consolidated Administration and Processing of Entries (CAPE) system is processing refunds of invalidated IEEPA duties, with interest, through the ACE Secure Data Portal. Phase 1 covered certain unliquidated entries and entries within 80 days of liquidation; Phase 2, live since July 7, extends eligibility to entries flagged for reconciliation where the reconciliation entry is not yet on file. Filers submit a CAPE Declaration — a CSV of entry numbers, up to 9,999 per declaration, with multiple declarations allowed — and CBP indicates valid refunds generally issue within 60 to 90 days of acceptance.

Operator impact: The IEEPA story has shifted from litigation to claim execution. Money is recoverable now for importers whose entries fit the phases — and stranded for those who miss the procedural windows. There is still no announced mechanism for entries liquidated beyond the Phase 1 window, which keeps timely protests relevant.

What to do next: Confirm the ACE portal account and ACH refund enrollment are in place, reconcile the eligible entry list against the phase criteria, and file the CAPE Declaration. For entries outside CAPE's current reach, calendar the 180-day protest window from liquidation rather than waiting for a later phase that may not cover them. Separately: refunds of the expired Section 122 surcharge remain tied to the pending appeal — that is a different track from IEEPA CAPE refunds, and conflating the two overstates what is claimable today.

5. The forced-labor 301 layer is now in its first entry cycle

What changed: The Section 301 action covering most products of 60 economies — generally 10% or 12.5% — took effect July 24, and the presidential action was published in the Federal Register on July 28. The first full entry cycle under the new Chapter 99 headings is clearing now.

Operator impact: Early entry summaries are where treatment errors surface: wrong country rule, missed exclusion heading, incorrect netting against MFN for the threshold economies, or stacking onto expressly excluded Section 232 articles. Errors caught in the first cycle are corrections; errors repeated for a quarter become prior-disclosure projects.

What to do next: Audit a sample of entries filed since July 24 against the country treatment and exclusion headings before the pattern hardens. Note the Canada interaction: the 10% forced-labor duty and the new Section 338 duty are separate actions with separate annexes — coverage under one says nothing about the other.

6. The cost backdrop is moving the other way

What changed: Drewry's World Container Index fell for a third consecutive week in its July 30 assessment, down 3% to $4,255 per 40-foot container, with Shanghai–Los Angeles at $5,739. Carriers are managing softening demand with rising blank sailings. Separately, CBP published its annual inflation adjustment to customs user fees for fiscal year 2027 on July 31, effective with the new fiscal year.

Operator impact: Falling spot rates cut the cost of the August front-loading decision — but rising blank sailings mean booked space is less certain in exactly the window when Canada-lane demand will spike. The fee adjustment is small but belongs in FY2027 landed-cost models now.

What to do next: Price accelerated Canada moves against current spot, not contract assumptions, and confirm sailings rather than assuming schedule integrity. Update MPF and related fee fields in cost models before October 1.

The August 19 Entry Review

A five-step review for any team with Canadian-origin exposure, to complete this week.

1. Pull the annex match. Run the full Canadian supplier file against the three proclamation annexes at the eight-digit level. Flag every covered line and every near-miss line where classification judgment could move a product on or off a list.
2. Test the exemption layers in order. Not listed — nothing changes. Covered by a Section 232 action (steel, aluminum, copper, autos and parts, heavy vehicles, lumber and wood, semiconductors, patented pharmaceuticals) — the 232 rate applies, not the 338 duty. Civil aircraft under General Note 6 — exempt, except drones. Chapter 98 — usable, with the duty applying to repair, alteration, and assembly value abroad.
3. Make the acceleration call per SKU. Accelerate where the product is covered, storable, and backed by one to two quarters of reliable demand and available working capital. A useful decision rule: if 50% of customs value exceeds gross margin — true for most distributors of covered goods — August 19 is a hard commercial deadline.
4. Execute entries, not shipments. Book cross-border capacity, brief the broker to enter on arrival, and target August 14 as the internal cutoff. Do not route covered goods into bonded warehouses or FTZs expecting relief.
5. Start the structural work. Classification reviews and binding rulings, substantial-transformation origin analysis, first-sale and other valuation levers, tariff-adjustment clauses in supplier contracts, and second-source qualification for Canada-dependent SKUs — the workstreams that matter if the duties are still in place at year end.

Dates / Watchlist

Now in effect

• July 7, 2026 — CAPE Phase 2 live in ACE: IEEPA refund eligibility extended to certain reconciliation-flagged entries.
• July 22, 2026 — Section 301 duties of 25% on most Brazilian-origin goods, with broad named exemptions.
• July 24, 2026 — Section 301 forced-labor duties of 10–12.5% on most products of 60 economies; the Section 122 surcharge expired the same day.

Coming up

• August 14, 2026 — practical internal cutoff for accelerated Canada entries, allowing buffer for border and broker congestion.
• August 19, 2026 — Section 338 duties of 50% on listed Canadian goods take effect at 12:01 a.m. ET, on entries and warehouse withdrawals from that time. Watch for CBP implementing guidance and CSMS messages before this date.
• October 1, 2026 — FY2027 inflation-adjusted customs user fees take effect, per CBP's July 31 notice.

Operator Checklist

• Match every Canadian-origin SKU to the Section 338 annexes at the eight-digit HTS level; document the rationale line by line.
• Stop treating USMCA certificates as protection against the 338 duty; keep them for base-rate and 232-content purposes.
• Enter storable covered goods for consumption before August 19 — target August 14 — and store duty-paid; avoid bonded-warehouse and FTZ deferral for covered lines.
• Confirm ACE portal access and ACH refund enrollment, then file CAPE Declarations for eligible IEEPA entries; calendar 180-day protest windows for entries CAPE does not reach.
• Audit post-July 24 entry summaries for forced-labor 301 treatment errors while they are still corrections.
• Reprice August Canada moves against current spot rates and confirm sailings against rising blank-sailing counts.

Operator Tool - From Our Partner

The Section 338 layer, the forced-labor 301 layer, and the surviving Section 232 programs each follow their own HTS lists — and the same product can sit on different sides of each. The US Tariff Rates tariff tracker maintains the current program-by-program picture, with 10-digit HTS lookup, country pages, and a landed-cost calculator to test a specific lane before an entry decision.

Every CLEARANCE issue is archived at clearance.news.

Source Stack

1. Proclamation — Imposing Additional Duties To Offset Canadian Discrimination With Respect to Motor Vehicles, Federal Register, published July 23, 2026. https://www.federalregister.gov/documents/2026/07/23/2026-14997/imposing-additional-duties-to-offset-canadian-discrimination-against-the-commerce-of-the-united
2. Proclamation — Imposing Additional Duties To Offset Canadian Discrimination With Respect to Dairy, Federal Register, published July 23, 2026. https://www.federalregister.gov/documents/2026/07/23/2026-14992/imposing-additional-duties-to-offset-canadian-discrimination-against-the-commerce-of-the-united
3. Proclamation 11046 — Imposing Additional Duties To Offset Canadian Discrimination With Respect to Alcoholic Beverages, Federal Register, published July 23, 2026. https://www.federalregister.gov/documents/2026/07/23/2026-14991/imposing-additional-duties-to-offset-canadian-discrimination-against-the-commerce-of-the-united
4. Peacock Tariff Consulting, "The New Section 338 Tariffs on Canada," briefing dated July 20, 2026 (checked August 3, 2026). https://www.peacocktariffconsulting.com/the-new-section-338-tariffs-on-canada-what-they-are-what-they-cover-and-what-importers-should-do-before-august-19/
5. Holland & Knight, "50 Percent Opening Bid: Canadian Imports Subject to Section 338 Tariffs Amid USMCA Talks," July 2026 (checked August 3, 2026). https://www.hklaw.com/en/insights/publications/2026/07/50-percent-opening-bid-canadian-imports-subject-to-section-338-tariffs
6. CBP, International Emergency Economic Powers Act (IEEPA) Duty Refunds — CAPE, checked August 3, 2026. https://www.cbp.gov/trade/programs-administration/trade-remedies/ieepa-duty-refunds
7. Presidential Document — Actions in the Section 301 Investigations of 60 Economies (Forced Labor), Federal Register, published July 28, 2026. https://www.federalregister.gov/documents/2026/07/28/2026-15274/actions-by-the-united-states-in-the-investigations-under-section-301-of-the-trade-act-of-1974-of-the
8. USTR Fact Sheet, Section 301 Action in Response to the Failure of 60 Economies To Ban Imports Produced with Forced Labor, July 2026 (checked August 3, 2026). https://ustr.gov/about/policy-offices/press-office/fact-sheets/2026/july/fact-sheet-ustr-section-301-action-response-failure-60-economies-ban-imports-produced-forced-labor
9. CBP, Customs User Fees To Be Adjusted for Inflation in Fiscal Year 2027, Federal Register, published July 31, 2026. https://www.federalregister.gov/documents/2026/07/31/2026-15530/customs-user-fees-to-be-adjusted-for-inflation-in-fiscal-year-2027
10. Drewry World Container Index, assessment of July 30, 2026 (checked August 3, 2026). https://www.drewry.co.uk/supply-chain-advisors/supply-chain-expertise/world-container-index-assessed-by-drewry
11. OIA Global, 2026 Tariff Updates, updated July 30, 2026 (checked August 3, 2026). https://www.oiaglobal.com/tariff-updates/