Issue 004 · Week of May 4, 2026
Your January 1 HS code may already be wrong — Chapters 28, 29, 73, 81
Four months in, the 2026 Customs Tariff substituted classification numbers and pre-ambles in four chapters. Advance rulings in those chapters need a validity check.
§ 0 — The Dashboard
| Indicator | Value | Source | Why it matters |
|---|---|---|---|
| Canada-US merchandise trade balance | +$1.7B surplus (Feb 2026) | StatCan, Apr 2 | March release lands Tuesday May 5, 8:30 ET — same morning this issue ships. |
| CAD/USD (most recent close) | ~0.7305 area (week of Apr 29) | Bank of Canada | Range-bound through the BoC decision week. Verify Friday close before any landed-cost calc. |
| BoC overnight rate | 2.25% (held Apr 29) | BoC press release, Apr 29 | Held since Oct 2025. April MPR projects 1.2% 2026 GDP; tariffs named as the export drag. Next decision June 10. |
| CPI inflation (latest) | 2.4% (March 2026) | BoC April MPR | Up from 1.8% in February on gasoline. BoC projects April near 3% before easing back to target. |
| CanadaBuys: Buy Canadian threshold | $25M now → $5M Jun 15 | CanadaBuys | Six weeks left to register supplier profiles before the threshold drop opens the procurement pool 5x wider. |
§ 1 — The Briefing
A four-chapter HS reshuffle that didn’t make the trade press
If you import in Chapter 28 (inorganic chemicals), 29 (organic chemicals), 73 (articles of iron or steel), or 81 (other base metals), any advance ruling you hold in those chapters may already be stale — the 2026 Customs Tariff has been live for four months.
CBSA Customs Notice 25-31 (issued December 1, 2025; in force January 1, 2026) substituted classification numbers and pre-ambles in those four chapters. The Notice directs importers with an advance ruling to review the changes and, where the classification number is no longer valid, request a modification. Concordance tables mapping old → new HS numbers are published on the CBSA T2026 page. Four months in is when unreviewed rulings start showing up at audit.
§ 2 — The Connection
Two classification systems updated inside the same five months
CBSA Customs Notice 25-31 took effect January 1 on the import side — new HS numbers and pre-ambles in Chapters 28, 29, 73, 81. Global Affairs Canada finalized the January 2026 edition of A Guide to Canada’s Export Control List on March 31; the May 2025 edition stayed in force until April 30, and the new edition took effect May 1. The 2026 Guide adds controls on certain single-transverse-mode non-tunable continuous-wave lasers, certain helium turboexpanders, and 1,1,3,3-Tetraethylguanidine.
Read together: the import-side and export-side classification systems both moved inside the same five-month window, and both reach into paperwork companies already hold — advance rulings on the import side, export permits and Export Control Numbers on the export side. A deferred review on one side often has a parallel deferral building on the other.
§ 3 — The Numbers
A worked example: the advance-ruling-validity exposure
Worked example. An SME importer brings in $400,000 a year of articles of iron or steel in Chapter 73 under a 2024 advance ruling. Three things can happen:
1. The ruling’s classification number was preserved — ruling stands. 2. The number was substituted — per CN25-31 ¶6, the ruling is no longer valid for goods entered under the new code; the importer requests a modification and CBSA reissues. 3. The number was substituted but no review was done — goods continue clearing under the original number, the ruling stops providing the certainty it was issued for, and exposure compounds with every entry.
The financial frame: a clearance four years past can still be re-examined under standard CBSA verification practice, and a misclassification surfaced on audit attracts retroactive duty plus interest. On $400K of annual volume, a small rate movement compounds across four years of entries before it shows up. The CPA lens: balance-sheet contingent liability, not a compliance checkbox — cleanup lands before the audit or after it.
§ 4 — The Action
One step to take this week
Pull the CBSA Concordance for your chapters, then validate any advance ruling you hold in Chapters 28, 29, 73, or 81.
The 2026 Departmental Consolidation page hosts the concordance tables — allow ~30 minutes per chapter you import in. Where the underlying number was substituted, request a modification per CN25-31 ¶6 using the procedure in Memorandum D11-11-3.
If you also export controlled goods, the January 2026 ECL Guide took effect May 1 — confirm your Export Control Numbers still match the new edition.
§ 6 — The Question
Have you walked the T2026 changes for your line yet?
If you’ve already worked through the T2026 walkthrough for your line, reply with what you found. What was the biggest surprise — a code that moved when you didn’t expect it to, or a code that survived when you assumed it would change? I’m mapping where the unexpected substitutions actually landed.
A note on framing: Fully Briefed synthesizes publicly available government source material and translates findings into financial terms. This is education, not regulatory or customs-law interpretation. For your specific HS classifications, advance rulings, or export permits, work with a customs broker, classification specialist, or trade lawyer.
Trevor Ryhorchuk, CPA, CIA, PMP
Fully Briefed — Canadian Trade Intelligence
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Canadian Trade Intelligence — Fully Briefed
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