The Office of the U.S. Trade Representative on Monday opened the public comment window for the next joint review of the United States-Mexico-Canada Agreement, locking in a Jan. 12, 2027, deadline for industry submissions ahead of a public hearing date still to be set.

USTR published a Federal Register notice on Oct. 2, 2026, asking for input on three buckets: USMCA implementation, compliance and the pact's effect on the North American economic climate. The agency also confirmed it will convene a public hearing, though a date has not been selected.

The move is procedural, but consequential. After the U.S. declined to extend USMCA earlier this year, the three governments must complete a joint review annually until the deal expires in 2036 or a replacement is reached. The next statutory review deadline lands July 1, 2027.

What does the comment window cover?

The notice lays out the scope for shippers, brokers and carriers that want to weigh in:

• Implementation: how customs brokers, importers and exporters apply USMCA preference rules in practice.
• Compliance: enforcement of labor provisions, automotive rules of origin and rapid-response labor mechanisms.
• Economic impact: how the deal shapes investment, sourcing and supply chain footprint decisions across North America.

For cross-border freight, each review cycle forces contract renegotiation, rules-of-origin re-verification and tariff classification work. That translates into detoured volumes, demurrage exposure and added hours at brokerages and drayage yards handling Mexico- and Canada-bound loads.

Why Mexico and Canada are running on different tracks

The U.S. bilateral relationship with Mexico is moving. USTR Jamieson Greer and Mexican Economy Secretary Marcelo Ebrard sat down for an hour at the G20 Trade Ministerial in Milwaukee last week, the latest exchange in a process that began with a third round of bilateral USMCA talks in late July 2026. Greer also addressed a Senate Finance Committee hearing on July 22, 2026, in Washington, D.C.

"We are getting close (Mexico and the U.S.) on many things. To advance, to get closer on positions, and resolve issues. And we're on our way, advancing, advancing, advancing," Ebrard said to reporters in Spanish at the conference.

Canada is the opposite case. President Donald Trump installed a 50% U.S. tariff on $20 billion of Canadian imports in August 2026. Canadian Prime Minister Mark Carney recalled negotiators and implemented retaliatory duties of up to 50% on U.S. goods in September 2026. Trump followed by expanding the 50% tariff scope and adding an import ban covering certain Canadian alcohol, dairy-related products and motor-vehicle items.

What shippers and forwarders should weigh

Trade attorneys and customs specialists regularly urge carriers, brokers and importers to file comments on USMCA reviews even when tariffs look settled. Comment records steer enforcement priorities for the next year and shape the templates CBP officers use to validate preference claims at the port of entry.

Forwarders booking cross-border volumes should price for continued volatility on List of Goods coverage, automotive origin rules and Section 232 carve-outs. Lane economics shift quickly when a single notice reshapes tariff lines on steel, aluminum, automotive parts or agricultural goods.

What comes next

The clock now runs to Jan. 12, 2027, for written comments, then to a USTR-hosted hearing on a date still to be selected, and finally to a joint USMCA review that must land by July 1, 2027. Without an extension, that sequence repeats every year until 2036, leaving North American freight flows tethered to a renegotiation treadmill rather than a fixed contract.