Section 122, 301 and USMCA Collide

July 6, 2026

TLDR: Three tariff deadlines collide in eighteen days. The Section 301 comment record closed July 6, USITC hearings run July 7–9, USMCA Round 3 lands July 20, and the Section 122 surcharge expires July 24. Autos and parts are in scope, the USMCA exemption under any 301 successor is legally untested, and the cost pressure is already leaking into counterfeit parts.

The auto industry spent the first half of 2026 waiting for one tariff shoe to drop. This month three drop at once. Between now and July 24, the Section 301 comment record closes, a multi-day trade hearing convenes in Washington, USMCA renegotiators meet in Mexico City, and the Section 122 surcharge that has shaped import math since February hits its statutory expiration. Any one of these would be a story. Stacked into an eighteen-day window, with the legal relationship between them untested, they add up to the most consequential stretch for vehicle and parts pricing since the tariff era began.

Here is the calendar every planner should have taped to the wall.

Section 122: the cliff that cuts both ways

The Section 122 surcharge has been the load-bearing wall of 2026 import costs. A federal trade court struck it down earlier this year, but a Federal Circuit stay has kept the 10 percent surcharge collectible while the appeal runs. That stay, and the statute’s own clock, both point at July 24.

A clean expiration is not simply relief. For non-USMCA imports, the surcharge coming off would drop the stacked rate from 27.5 percent toward a 15 percent most-favored-nation baseline, a real reduction. But finished vehicles already carrying the 25 percent Section 232 auto tariff sit outside the 122 surcharge to begin with, so they see little direct benefit. The exposure that remains is in parts. That is the quiet part of this story, and it is where the next two deadlines do their damage.

Section 301: the successor nobody has litigated

As Section 122 winds down, Section 301 is winding up to replace it. The proposal on the table covers roughly 60 investigations and economies, including the European Union, Japan, and South Korea, with duties of 10 percent on one tier of partners and 12.5 percent on another. Autos and auto parts are explicitly in scope. The comment period closed July 6, and the USITC opens multi-day public hearings July 7. The testimony that comes out of those three days will be the first real signal of how seriously automakers are treating the risk of a duty that stacks on top of what they already pay.

The unresolved question is legal, not just commercial. Vehicles and parts already covered by Section 232 and Section 122 are proposed for exemption from the new duties, but no one has litigated whether that exemption holds, and the framework treats USMCA-qualifying goods as an open question. Which brings in the third deadline.

USMCA: the exemption that may not survive its own renegotiation

On July 1 the United States formally declined to renew USMCA in its current form, triggering the agreement’s annual review cycle rather than a clean multi-year extension. The US position is aggressive: raise the regional content requirement for autos from 75 percent to 82 percent, and layer on a new 50 percent US-specific content rule on top of that, plus restrictions on Chinese-origin components. Round 3 of those talks lands in Mexico City the week of July 20, four days before the Section 122 cliff.

The timing is the problem. USMCA-qualifying vehicles and parts have been the reliable way around the tariff stack. If the agreement’s terms are being renegotiated at the exact moment a new Section 301 regime is being written, then the single most important exemption in North American auto trade is unsettled precisely when companies need certainty to plan second-half production. There is no replacement framework introduced, and no deal is expected before the succession decision has to be made.

The cost is already leaking downstream

If you want evidence that tariff pressure is reshaping behavior rather than just paperwork, look at the aftermarket. On July 2, Customs and Border Protection seized 170,000 dollars in counterfeit Chinese struts and shocks at the Port of Norfolk. Counterfeiting rises when legitimate parts get priced out, and roughly 44 percent of US collision parts carry Section 301 exposure. When the duty math on genuine components climbs, the gap gets filled with fakes that end up on collision-repair lifts. That is a safety story hiding inside a trade story, and it is the clearest sign that the stacked-tariff pressure is already real for shops and insurers, not just importers.

What to watch

The next three weeks resolve in order. Read the OEM filings and July 7 to 9 USITC testimony for how automakers frame stacked exposure. Watch whether Round 3 in Mexico City produces any content-rule compromise or hardens the 82-plus-50 demand. And watch July 24 for whether Section 122 expires clean, is extended by further legal maneuvering, or is functionally replaced by a Section 301 successor before the ink is dry.

For a balanced read, none of this is guaranteed to raise sticker prices in the near term. Finished vehicles under Section 232 are already priced for tariffs, a clean 122 expiry would modestly help non-USMCA imports, and the 301 exemptions may hold. The cost that is certain is uncertainty itself. Suppliers cannot source, price, or commit capacity against four moving variables at once, and that hesitation carries its own price. The July window will not remove the ambiguity so much as reveal which direction it breaks.

Sources

Office of the US Trade Representative (USMCA review statement, July 1, 2026; Section 301 proposal and USITC hearing notice); Kelley Drye, Trade and Manufacturing Monitor (Section 122 and the end of IEEPA tariff actions); Skadden (US trade court strikes down Section 122 tariffs); RVIA (latest tariff developments); US Customs and Border Protection (Port of Norfolk counterfeit auto-parts seizure, July 2, 2026).