Recent CBSA customs notices and D-memorandum revisions affect different control points: some change the duty treatment of specific goods, some update evidence expectations, and others change reporting or warehouse procedures. Treating every notice as a general tariff update can send the review to the wrong team. A better approach is to match each revision to the product, route, accounting record or facility it actually affects.
Start with the affected control point
The changes reviewed here fall into four practical groups. The first is product and duty treatment, including U.S.-origin surtaxes, wood-cabinet safeguards and a tariff-description amendment. The second is verification and accounting evidence, including the revision to D11-6-8 for CARM Release 3 and the Commercial Accounting Declaration. The third is transport reporting, particularly Canada–U.S.–Canada rail movements. The fourth is specialized eligibility or facility procedure, including automotive tariff items, energy-using products and sufferance warehouses.
That grouping matters because the responsible owner may differ. A classification or origin team may need to review a product file, while a transportation team may need to confirm a carrier's movement reporting. A warehouse operator may need to update its own application or CARM Client Portal process. The source notice should determine the scope rather than the location of the shipment alone.
Product-specific changes require a SKU or tariff-line review
U.S.-origin goods subject to surtax
CBSA Customs Notice 26-23 describes Canadian surtaxes of 15%, 25% or 50% on specified goods originating in the United States, effective September 8, 2026. The measure applies to commercial and casual imports, including goods shipped through a third country. The notice also addresses in-transit goods, proof of origin, CUSMA, duty relief and duty drawback. Importers of listed goods are directed to declare the applicable surtax using the relevant surtax code on the Commercial Accounting Declaration in CARM. Read Customs Notice 26-23.
For a Toronto, Mississauga or Brampton importer, the practical review is not simply “which shipments came from the United States?” The review should identify the goods that meet the notice's coverage and then confirm origin evidence, the applicable surtax code and any potentially relevant relief or drawback treatment. Goods routed through another country should not be excluded from the review solely because the immediate shipping point is not the United States.
Wood cabinets, vanities and subassemblies
Customs Notice 26-17 introduced a provisional safeguard surtax on specified wood cabinets, vanities and subassemblies, effective July 31, 2026. The measure is based on the tariff classifications listed in the notice and applies in addition to other applicable duties unless an exemption or relief provision applies. The provisional measure may apply for up to 200 days, subject to the Canadian International Trade Tribunal's safeguard inquiry. Read Customs Notice 26-17.
Importers supplying construction, kitchen, bathroom or home-improvement channels should compare the tariff classifications in the notice with the classifications used on current purchase orders and entries. The review should also identify whether a claimed exemption or relief provision is supported by the required facts. A product description such as “cabinet parts” should not replace a classification and scope review.
Lithium-ion batteries and electric motorcycles or cycles
Customs Notice 26-21 records an amendment effective August 6, 2026 to the description for tariff item 8507.60.20. The wording was changed by replacing “electrically-powered motorcycles” with “motorcycles or cycles with an electric motor.” Importers declaring goods under that tariff item were specifically advised to review existing CBSA advance rulings to determine whether the amendment affects them. Read Customs Notice 26-21.
This is a targeted ruling and classification review, not a reason to reopen every battery file. Businesses with relevant battery, electric-cycle or electric-motorcycle products should identify entries and advance rulings tied to the tariff item, then discuss whether the amended description changes the analysis.
Accounting and verification records need the CARM vocabulary
CBSA revised Memorandum D11-6-8 on September 9, 2026. The memorandum covers verification of non-free-trade-agreement origin, tariff classification and value for duty, and updates the guidance for CARM Release 3. It replaces references to Forms B3-3 and B2 with the Commercial Accounting Declaration, or CAD. Read Memorandum D11-6-8.
The operational issue is record alignment. Commercial importers and customs brokers that may be subject to verification should review whether their correction files, accounting records and supporting documents use the current CAD and CARM terminology consistently. This does not change the underlying need to support origin, classification and value for duty; it changes the documentation context in which those records are maintained and reviewed.
A useful file-level check is to compare the data used by purchasing, customs, finance and the broker: product description, origin support, tariff classification, value-for-duty inputs and the resulting CAD record. Where the internal record still refers only to legacy forms, the importer should discuss with its broker whether the record set is clear enough for a CARM-based verification.
Route-specific reporting is separate from tariff treatment
Customs Notice 26-16, issued July 10, 2026, clarifies reporting requirements for domestic Canadian cargo moving through the United States by rail. Rail carriers are to select “Rail In-transit Manifest” as the movement type, provide complete cargo information through ACI/eManifest, report the cargo at the first port of arrival and report the export movement before the shipment leaves Canada. Read Customs Notice 26-16.
This change is most directly assigned to rail carriers and freight forwarders, but importers using Canada–U.S.–Canada rail routing should confirm how carrier documentation and transit visibility support release. A GTA importer receiving through a rail-linked supply chain should distinguish this review from an origin or tariff review: the issue is whether the movement is being reported under the correct process and with complete cargo information.
Specialized programs need evidence tied to eligibility
Automotive tariff items 9958 and 9959
CBSA revised D10-15-15 on August 14, 2026, consolidating former Memoranda D10-15-15 and D10-15-21. The memorandum covers tariff items 9958.00.00 and 9959.00.00, including documentation expectations for proving actual end-use and distinctions between eligible vehicle parts, accessories and materials and excluded goods. Read Memorandum D10-15-15.
Ontario automotive manufacturers, parts suppliers and aftermarket importers should assign this review to the team responsible for end-use evidence, not only to the classification team. The relevant question is whether the importer can document the actual use and the nature of the goods supporting the claimed treatment.
Energy-using products
D19-6-3 was revised on July 24, 2026 to reflect regulated-product changes resulting from Amendment 18 to the Energy Efficiency Regulations. It also updates information on import requirements and the Integrated Import Declaration through the Single Window Initiative. Read Memorandum D19-6-3.
Importers of appliances, equipment and other regulated energy-using products should compare their product catalogue with the updated import requirements and confirm that the applicable Single Window information is being handled through the appropriate process.
Sufferance warehouses
D4-1-4 was updated on July 6, 2026. The revision adds the Customs Sufferance Warehouse Enrolment Form BSF897 and updates procedures involving applications, amendments, cancellations, financial security and CARM Client Portal submissions. Read Memorandum D4-1-4.
Warehouse operators in Mississauga or Brampton, and carriers or forwarders whose goods are held in bonded storage before release, should separate facility administration from shipment accounting. The facility owner or applicant should review the enrolment, amendment and security process, while importers should confirm how warehouse status and release handoffs are documented.
A practical review sequence
- Identify whether the change is product, route, accounting, program eligibility or facility related.
- Limit the population: affected tariff lines, origins, routes, rulings, warehouse applications or regulated products.
- Assign the review to the owner of the evidence, not just the person who receives the notice.
- Ask the customs broker to confirm the applicable CAD treatment, surtax code, classification, origin evidence or release documentation.
- Record the source notice, revision date, affected population and any unresolved question for the next entry or verification review.
These revisions are national measures, not GTA-only rules. Their local significance depends on what a Toronto importer, Mississauga warehouse operator or Brampton distribution business actually imports, stores or routes. The safest response is therefore a scoped review tied to the affected goods or process, followed by a broker discussion before changing declarations or relying on an existing ruling.