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Daimler Truck North America, Paccar, Volvo Group North America and International Motors argued that the CTP violates the Clean Air Act and the Supremacy Clause of the U.S. Constitution.

The International Motors LT Series tractors will be deployed as part of Aurora’s transportation-as-a- service product line, according to the self-driving truck technology developer.

Paccar expects to seize a bigger U.S. heavy-duty truck market share once the Section 232 import tariffs on medium- and heavy-duty trucks and parts go live Nov. 1.

International Motors sold 13,400 trucks and buses in the third quarter of 2025, a 57% decrease compared with 31,500 sales in the year-ago period, parent company Traton Group said Oct. 10.

The latest figures show a 5.1% sequential decrease from 18,838 units reported in July, and year-to-date sales are down 7% to 144,756 units from 155,576.

International Motors sold 16,900 trucks and buses in the first quarter of 2025, a 12% decrease compared with 19,300 vehicles in the same period 12 months earlier.

International Motors has certified its S13 integrated powertrain for renewable diesel, offering fleets a low-carbon alternative to petroleum-based fuels, the company announced Jan. 15.

Profit at International Motors almost doubled year on year in Q3 as the OEM cleared a delivery backlog caused by a Q2 fire at a mirror supplier, with truck sales jumping more than 40%.