Recent Canadian trade measures affecting Ontario importers are targeted rather than a broad freight stoppage. On September 14, 2026, CBSA introduced a temporary accommodation for authorized Courier Low Value Shipment participants facing air-carrier capacity constraints. On September 17, provisional duties began applying to certain wheat gluten imports, while anti-dumping and countervailing duties ended for specified Chinese photovoltaic modules and laminates.
What changed in the freight network
The most direct supply-chain development is the September 14 CLVS accommodation. Authorized CLVS participants may use third-party air carriers that are not Partners in Protection certified. CBSA described the measure as a response to air transportation capacity challenges and the limited availability of PIP-certified air carriers.
The exception has conditions. The CLVS participant must retain active PIP certification for air operations. The third-party carrier must remain bonded and present shipments at the designated sufferance warehouse. This is an operational option for qualifying courier networks; it is not a general waiver of courier-program requirements for every air shipment.
For importers in Mississauga, Brampton and Toronto that rely on courier networks for low-value replenishment, samples or urgent components, the immediate issue is whether the courier can preserve capacity under the revised arrangement. Importers generally should confirm the courier’s operating status and expected routing rather than assume that every third-party air carrier can use the CLVS process.
Two changes that alter landed-cost calculations
The freight-capacity measure is separate from two trade-remedy changes that took effect on September 17.
| Goods | September change | Potential operational effect |
|---|---|---|
| Specified wheat gluten from Italy, Poland and the United Kingdom | Provisional anti-dumping duties became payable on subject goods released on or after September 17, 2026. | Importers may need to calculate provisional duties and provide more detailed transaction information. |
| Specified photovoltaic modules and laminates from China | Applicable anti-dumping and countervailing duties no longer apply to new releases covered by the rescinded order. | Eligible shipments may have lower landed costs; some previously paid duties may qualify for automatic refunds. |
The wheat gluten preliminary determination lists provisional rates ranging from 7.0% to 66.1%, depending on country and exporter. The normally associated tariff items are 1109.00.10.00 and 1109.00.20.00, but the product definition controls. A tariff classification alone does not establish whether a shipment is subject to the measure.
Importers of subject wheat gluten generally need documentation identifying the producer, origin, product, transaction and freight-cost information. The notice also warns that incomplete information can expose an importer to penalties under the Administrative Monetary Penalty System. Food manufacturers, ingredient distributors and wholesalers should therefore review purchase orders and supplier documents before the next release, particularly where the commercial invoice does not clearly identify the producer or origin.
Photovoltaic duty relief requires a product check
For specified Chinese photovoltaic modules and laminates, the Canadian International Trade Tribunal rescinded the applicable order. CBSA states that anti-dumping and countervailing duties no longer apply to covered new releases from September 17, 2026.
CBSA also states that it will automatically refund eligible duties paid on covered goods released on or after March 25, 2026. Releases before March 25 are not eligible for this particular refund. The goods are normally associated with tariff items 8541.42.00.00 and 8541.43.00.00, but those tariff items can include non-subject goods. Importers generally should match the product description to the order before removing a trade-remedy amount from a costing model.
A practical response for Ontario import teams
These changes call for separate workstreams rather than one generic “disruption” response.
- Courier capacity: Ask the CLVS provider whether the shipment will move under the September 14 third-party-carrier accommodation and whether the carrier remains bonded and able to present goods at the designated sufferance warehouse.
- Wheat gluten: Flag shipments released on or after September 17 from Italy, Poland or the United Kingdom for a product-definition and exporter review. Do not rely on the tariff item alone.
- Photovoltaic goods: Review new releases and eligible post-March 25 releases separately. Confirm that the modules or laminates match the covered product definition before applying the duty-removal or refund treatment.
- Shipment records: Keep the commercial, origin, producer, freight and product information together with the accounting file so the customs treatment can be reconstructed if the shipment is reviewed.
For GTA distribution operations, including facilities serving the 401 and 407 corridor, the main control is classification and documentation discipline at the shipment level. The September measures do not create one uniform freight condition: courier capacity may improve through a limited operating accommodation, while particular food-ingredient imports face new provisional costs and qualifying solar imports may receive duty relief.
What importers should not assume
Importers generally should not treat the CLVS change as a blanket relaxation for all courier shipments, or treat the photovoltaic duty rescission as applying to every product under the associated tariff items. Similarly, the wheat gluten rates do not apply merely because a product is a food ingredient from Europe; the subject-goods definition and exporter details remain relevant.
The most useful response is a shipment-by-shipment review: verify the transport pathway for courier freight, identify possible SIMA exposure before accounting, and retain the evidence supporting any duty relief. That approach addresses the actual September changes without treating targeted measures as a general Ontario freight shutdown.