Three crossings. We pick the right one.

A cross-border truckload runs on a small stack of documents, and almost every avoidable delay is one of them being wrong. The commercial invoice is produced by the seller and is the document customs values the shipment from: it needs the full legal names and addresses of both parties, a specific description of the goods, the quantity, the unit and total price, the currency, the terms of sale and the country of origin of each line. Generic descriptions such as parts or samples are the most common cause of a shipment being pulled for questions, and they cost hours at the booth for no reason.

The bill of lading is the contract of carriage between you and the carrier and it governs liability, not customs. The packing list breaks out what is physically in each carton or on each skid, which matters when customs opens the trailer and counts. Where a preferential duty rate is being claimed, the certification of origin has to exist before the entry is filed rather than being produced afterwards. For regulated commodities, the relevant permit or licence from the other government department travels with the file, because customs will not release goods that another department has not cleared.

The carrier produces the pieces that are specific to the crossing. That is the PARS or PAPS barcode that the entry is filed against, and the eManifest transmission, ACI into Canada or ACE into the United States, sent within the required advance window before arrival. The driver carries the paperwork in the cab and it has to match what was transmitted electronically. A mismatch between the two, even a small one such as a different piece count, is treated as a discrepancy and the truck goes to secondary. Reconciling the file the day before is a fifteen-minute job that prevents a four-hour one.

The Gordie Howe International Bridge opened to traffic on 27 July 2026, connecting Windsor directly to Detroit with a six-lane crossing and, importantly for freight, dedicated customs plazas on both sides that were designed around commercial volume rather than retrofitted into a city street grid. For Ontario shippers this is the most significant change to the Windsor-Detroit corridor in a very long time, because the constraint at that crossing was never the river, it was the approach roads and the plaza capacity on either side of it.

The practical difference is the connection at both ends. On the Canadian side the bridge ties directly into Highway 401, so a truck leaving the GTA reaches the plaza without working through Windsor city traffic. On the American side it connects to Interstate 75, which is the artery down to Toledo, Dayton and Cincinnati and across to Chicago via I-94. The older route through the Ambassador Bridge feeds into surface streets on the Detroit side, and that section was reliably where the time went. Removing it changes the arithmetic on same-day Toronto to Michigan and Ohio deliveries.

None of that means Windsor is automatically the right crossing for every load. Sarnia and Port Huron remain the better answer for a lot of freight heading to the western side of Michigan and up into Wisconsin, and Fort Erie or Lewiston are still the correct crossings for anything going to New York, Pennsylvania, New Jersey or New England. Routing northeast freight through Windsor because the bridge is new adds hundreds of kilometres for nothing. We pick the crossing per load against the destination and the wait times on the day, which is what we did before the bridge opened and what we will keep doing.

Not every shipment should be cleared at the point it crosses. In-bond movement lets goods travel under customs control from the border to an inland location where the entry is then filed, which is useful when the paperwork is not ready, when the goods are destined for a bonded warehouse, or when the importer would rather clear at a port near the final consignee. In the United States this runs on the transportation and exportation or immediate transportation entry types; in Canada the equivalent is an in-bond movement to a sufferance or bonded warehouse. The freight moves, the duty question waits.

Bonded warehousing extends the same principle in time rather than distance. Goods sit in a licensed facility with duty and tax suspended until they are withdrawn for consumption, which matters when you are importing in container quantities and selling over months. The cash flow effect can be substantial, because the duty and GST are funded as the goods are actually sold rather than all at once when the container lands. If some of the goods are later re-exported without entering the Canadian market, the duty on those is never paid at all. That is a real saving and it is frequently overlooked.

There is also freight that simply passes through. Goods moving from Ontario to the Maritimes across Maine, or from Ontario to Western Canada across the American Midwest, transit the United States without being imported into it. That is an in-transit movement and it is filed as one, not as a US import. Doing it correctly keeps the freight moving and keeps the shipper out of an argument about a US entry that was never intended. It sounds obvious, and it is still one of the more common ways an inexperienced carrier turns a routine domestic move into a customs problem.

A carrier that runs domestic Ontario freight competently is not automatically a carrier that should be running your cross-border loads. Crossing requires operating authority valid in both countries, the ability to transmit eManifest data reliably and on time, drivers who hold the right documentation and have crossed enough times to handle a secondary referral without panicking, and insurance that responds on both sides of the border. Any one of those missing turns a routine load into a stranded one, and the discovery usually happens at the worst possible moment.

Trusted trader programmes help, and they help most on the short lanes where the border is the dominant variable rather than the distance. Canada runs Partners in Protection, the United States runs C-TPAT, and FAST processing sits on top of both for shipments where the carrier, the driver and the importer all qualify. What these programmes buy is a dedicated lane and a lower examination rate, not an exemption from inspection. Any carrier implying that trusted trader status means never being examined is overselling it, and it is worth noticing when they do.

Duty drawback and returned goods are the two areas where cross-border shippers most often leave money on the table. Goods imported into Canada and later exported, either in the same condition or after processing, may qualify for a refund of the duty paid, and there are time limits on making the claim. Canadian goods returning after repair or after being sent abroad for a trade show generally re-enter under provisions that avoid duty being charged twice, but only if the original export is documented. Neither of these is automatic and neither can be reconstructed easily after the fact, so the paperwork has to be set up before the goods leave rather than assembled afterwards from memory.

Beyond the border-specific checks, the ordinary carrier vetting still applies and matters more on a long cross-border run than on a short domestic one. Operating authority confirmed as active, safety rating checked with the regulator rather than taken on trust, insurance certificates verified with the insurer rather than accepted as a document from the carrier, and the Ontario CVOR record reviewed where applicable. Double-brokering is the failure mode that defeats all of it, because a load quietly re-tendered to an unvetted carrier is moving under none of the controls you were told about. It is written into our tender terms for that reason.

It is also worth confirming how a carrier handles the crossing itself rather than assuming competence from a clean safety record. Ask whether they transmit the electronic manifest themselves and how far in advance, whether their drivers routinely run the crossing your freight uses, and what happens when a load is pulled for inspection. A carrier who is excellent on the highway but unfamiliar with your specific gateway can still cost you a day at the booth. We match cross-border loads to carriers who run the relevant crossing regularly, because familiarity with the border is a separate qualification from being a good trucking company and it is the one that decides how the crossing actually goes.