Recent CBSA notices and D-Memoranda do not all create new duty costs. Some change a tariff treatment, some clarify a warehouse or rail process, and others update the records CBSA may examine during verification. For importers in Toronto, Mississauga and Brampton, the practical issue is not simply keeping a list of notices. It is linking each revision to the specific shipment record, declaration field, permit or product file that may need to change.
Use one change register, not a notice folder
A notice folder shows that someone downloaded a CBSA publication. It does not show whether the change reached the product master, broker instructions, warehouse procedure or post-entry review. A useful change register should contain at least these fields:
- Source and publication date: record the exact Customs Notice or D-Memorandum.
- Effective or operational date: distinguish the date the rule applies from the date a page or tariff file was updated.
- Affected population: identify the tariff items, origin, product type, transport mode or warehouse transaction involved.
- Record affected: mark the commercial invoice, tariff master, CAD instruction, permit file, warehouse release, rail manifest or verification file.
- Evidence owner: assign responsibility for origin records, product specifications, permits, calculations or broker instructions.
- Closure evidence: retain the revised procedure, product review, broker confirmation or corrected entry reference.
This structure is particularly useful where several changes appear in the same period but have different consequences. The September 2026 U.S.-origin surtax, for example, requires a different review from a revision that only replaces legacy accounting terminology.
Classify the revision before changing the entry process
1. A new duty or surtax measure
Customs Notice 26-23 implemented the United States Surtax Order (2026) for specified U.S.-origin goods. The notice identifies surtax rates of 15%, 25% or 50%, depending on the tariff item, with the measure effective September 8, 2026. Coverage depends on origin and tariff classification; the shipping location alone is not determinative. The notice also identifies potential relevance of CUSMA-related duties-relief or drawback provisions for some goods. Read Customs Notice 26-23.
In the change register, this belongs against the affected SKU or tariff item and should be linked to origin evidence, CUSMA records, value-for-duty data and any relief analysis. A general instruction such as “check U.S. shipments” is not sufficiently precise, because the measure is tied to covered goods rather than every shipment dispatched from the United States.
A separate safeguard measure applies to specified wood cabinets, vanities and related subassemblies. The 25% safeguard surtax took effect July 31, 2026, and can cover assembled, unassembled and flat-pack goods. CBSA states that the amount is declared in the “Safeguard” field of the Commercial Accounting Declaration, using safeguard code 26169A, rather than the ordinary “Surtax” field. Read Customs Notice 26-17.
That entry should be tracked separately from the U.S.-origin measure. The affected record is not only the tariff classification: it also includes CAD field mapping, exclusion evidence, origin documentation and records supporting whether goods were already in transit before the effective date.
2. A tariff treatment or classification revision
Eligible U.K.-origin goods became eligible for Comprehensive and Progressive United Kingdom Tariff treatment effective September 1, 2026, following the United Kingdom’s entry into the CPTPP. CBSA added the treatment and applicable rates through the T2026-2 tariff update; the tariff files were made available in all formats on September 16, 2026. Read Customs Notice 26-22.
For this item, the register should connect the product to origin qualification, the tariff treatment code and any existing classification or ruling record. The relevant control is not simply “U.K. supplier.” The importer should have a process for confirming that the goods qualify for the claimed treatment.
CBSA also revised the policy for non-commercial snowmobile, utility and boat trailers under D10-14-24. The memorandum states that these trailers are generally excluded from tariff item 8716.39.30 and classified under 8716.39.90, with related treatment for gooseneck trailers. The revision is dated July 9, 2026. Read D10-14-24.
Trailer importers should attach design, intended-use and commercial-status evidence to the product record. Where the facts are unclear, the register should identify whether an advance ruling or review of an existing ruling should be discussed with the broker.
Track the process record when no new duty is created
Bonded warehouse and TRQ releases
Customs Notice 26-20 clarified the treatment of tariff-rate-quota goods in customs bonded warehouses. CBSA states that this was not a change in policy. A shipment-specific Global Affairs Canada import permit must cover the date the goods leave the warehouse for the “within access” duty rate. If the permit is unavailable at warehouse entry, the notice describes accounting and adjustment steps that may involve a Type 10 adjustment before a Type 20 or 21 ex-warehouse movement is treated as within access. Read Customs Notice 26-20.
The register entry should therefore be attached to the warehouse-exit workflow, not just the original import entry. Permit expiry, warehouse release date, adjustment status and the claimed duty treatment should be visible to the importer, warehouse and broker. This matters for goods held in GTA facilities serving distribution operations in Mississauga, Brampton or Toronto, where the physical release may occur well after the goods entered the warehouse.
Rail in-transit reporting
Customs Notice 26-16 clarified ACI/eManifest procedures for rail cargo moving from a foreign point through Canada, from the United States through Canada and back to the United States, and from Canada through the United States and back to Canada. The notice was issued July 10, 2026 and the page was updated July 24, 2026. It identifies the “Rail In-transit Manifest” movement type, a two-hour cargo-data timeframe and a BSF708 paper option for which railcars must be sealed. Read Customs Notice 26-16.
For importers and forwarders using Ontario rail gateways, this belongs in the transport-control portion of the register. The responsible party may be the carrier rather than the importer, but the importer should still confirm who supplies the data, who checks the movement type and who retains evidence of the reported movement.
Update the CAD and verification vocabulary
Several revisions concern how information is submitted or reviewed under CARM. D19-10-2 was updated on July 13, 2026 to provide instructions for declaring Import Control List goods through the Commercial Accounting Declaration process, including permit and General Import Permit information for goods entering bonded or sufferance warehouses. Read D19-10-2.
D11-6-8, dated September 9, 2026, reflects CARM Release 3 and replaces references to the former B3-3 and B2 forms with the Commercial Accounting Declaration in trade-verification procedures. CBSA may review CADs, product information, trade literature and other records when examining origin, tariff classification or value for duty. Read D11-6-8.
These entries should be assigned to the broker-instruction and verification-file owners. Importers should discuss whether internal templates, document requests and response procedures use current CAD terminology and preserve the records needed to support the accounting position.
Other revisions worth screening
D19-6-3 was revised July 24, 2026 for regulated energy-using products following Amendment 18 to the Energy Efficiency Regulations. The memorandum concerns commercial imports and excludes personal imports; it identifies NRCan data transmission through the Single Window Initiative and continuing energy-efficiency reporting, marking and certification requirements. Read D19-6-3.
D4-1-4 was revised July 6, 2026 to incorporate the Customs Sufferance Warehouse Enrolment Form BSF897 and update information about applications, amendments and cancellations of sufferance warehouse licences. Read D4-1-4. D10-15-15, dated August 14, 2026, consolidated policy on tariff items 9958.00.00 and 9959.00.00 for parts, accessories and materials used in manufacturing certain vehicles. Read D10-15-15.
What to discuss with the broker
- Which entries, SKUs or movements fall within the revision?
- Which record changes: tariff master, origin file, CAD field, permit, warehouse release, manifest or verification file?
- What evidence supports the classification, origin, exemption, permit status or end use?
- Does the change apply to a new transaction only, or does it warrant a review of prior entries?
- What document will demonstrate that the change was implemented?
A completed change register should make those questions answerable without searching through disconnected notices and email threads. It also helps separate a new financial exposure from a process clarification, so the importer applies the right control to the right shipment record.