B-1 Visa Rules for Foreign Truckers: What Changed and Why It Hits Rates

Roughly 20,000 Mexican truck drivers lost their US work visas between April 2025 and April 2026, and the enforcement wave behind that number turns a dormant rulebook into an active commercial risk for every carrier and broker running border lanes. The B-1 visa rules themselves haven't changed in decades. What changed is that Washington started enforcing them.

Two agencies, one truck

A cross-border load answers to two separate federal systems at once, and clearing one doesn't clear the other. Customs and Border Protection governs the goods and equipment under cabotage rules built on 19 CFR 123.14. Immigration law — 8 USC 1101 and the business-visitor provisions at 8 CFR 214.2(b) — governs the person behind the wheel. A movement can satisfy customs and still violate immigration, because the two bodies of law ask different questions. One asks whether the freight belongs in domestic commerce. The other asks whether the driver may work at all. Both boxes must be checked on every leg.

What can a B-1 driver legally do?

The B-1 is a business-visitor classification. For a cross-border driver, it covers movements inside the stream of international commerce — the load has to be crossing a border, coming or going. Specifically, a driver domiciled in Mexico or Canada may:

• Haul a shipment loaded in his home country to one or more US delivery points.
• Enter empty and pick up a US load bound for Mexico or Canada.
• Drop the inbound trailer, run empty with it, and reload it for the trip out.
• Drop a loaded inbound trailer, bobtail elsewhere in the US, and hook a different loaded export trailer.
• Do the loading and unloading necessary to moving that international freight.

CBP's published land-carrier guidance addresses this directly: a US carrier may employ a foreign driver only for international delivery to or from the country, never domestic carriage without US work authorization.

Where the line sits — cabotage

Cabotage means domestic point-to-point transport inside the US by a foreign operator. A Mexican driver who delivers an import to Dallas cannot then run a Dallas-to-Houston load for pay. He cannot add a domestic shipment to fill empty space — enforcement calls it "topping up." He cannot solicit domestic freight while in the US, or reposition an empty trailer between two US points if it isn't the trailer he entered with or will leave on.

The unifying doctrine: freight that has come to rest loses its international character. Once an import is unloaded and enters the domestic supply chain, it can't be hauled onward under a B-1. The international leg is what's authorized. When it ends, so does the driver's authority.

Field application isn't fully settled. Canacar's Tijuana delegate has said officers disagree over how to treat an empty trailer, with some treating the trailer itself as cargo — inconsistency drivers have protested at the border.

Not a work visa

The State Department's Foreign Affairs Manual treats B-1 status as commercial activity short of gainful US employment. The parallel is aviation: foreign airline crews in B-1 status can't work domestic flights. The logic carries straight to trucking. Around Nuevo Laredo, outsourced B-1 driver fleets took root, some paid in cash with no taxes withheld, running domestic loads at a fraction of prevailing rates — undercutting every domiciled carrier on the lane.

How enforcement escalated

The April 2025 executive order, "Enforcing Commonsense Rules of the Road for America's Truck Drivers," directed DOT to enforce existing driver-qualification standards. English-language proficiency, on the books under 49 CFR 391.11 but effectively unenforced since 2016, became an out-of-service offense again on June 25, 2025. Canacar, citing a figure its president attributed to the American Trucking Associations, put the visa losses at roughly 20,000 through April 2026, and above 25,000 by September — its own estimate from member reports, not official US data. Transportation Secretary Sean Duffy has said about 3,200 drivers lost visas for cabotage specifically since January, a number DOT hasn't formally confirmed. What DOT has confirmed: it shares driver data with CBP, and flagged drivers get pulled at the crossing itself. In August, Border Patrol arrested a Canadian driver running Deming to Los Lunas, both in New Mexico.

What does this change for carriers and brokers?

At a June 2025 Wells Fargo conference, J.B. Hunt COO Nick Hobbs and then-Schneider CEO Mark Rourke tied cheap border-lane rates partly to this capacity, casting tighter enforcement as a path back toward supply-demand balance, with the Southwest and Southeast gaining most. Prosecutions remain rare — the 2019 Nogales case, where two operators forfeited two trucks each and paid $20,000 fines, still anchors the precedent. The practical risk is service failure: a driver turned back at the crossing doesn't deliver, and a lane built on him can go dark overnight. For brokers, the cheapest truck is now the one most likely to strand a load mid-contract. As that math stops working, capacity comes off the board and shifts to carriers that played it straight — and the line between international and domestic freight is now drawn by inspectors, not dispatch desks.