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Under the new proposal, tailpipe emissions will have to be reduced by 90% by the middle of the next decade compared with the current goal of a 100% reduction.

“We are encouraged by several proposed adjustments that should help lower costs and ease implementation,” ATA Vice President of Energy and Environmental Affairs Patrick Kelly said.

ATA President Chris Spear emphasized the federation's active role in this year’s regulatory changes, including in a meeting with then-presidential candidate Donald Trump last summer.

“Paccar delivered good revenues and net income in the third quarter of 2025. Peterbilt, Kenworth and DAF’s excellent trucks contributed to the good results,” said CEO Preston Feight.

Traditional DPF cleaning leaves fleets blind to cracks, clogs, and costly risks. This whitepaper gives you access to unreleased proof-of-concept images from Ceramex’s Veritex® AI infrared imaging system—exposing hidden failures and delivering OEM-grade validation with proof in just 3 minutes.

The EPA proposal published Sept. 30 applies to everything from residential air conditioning to retail food refrigeration and semiconductor manufacturing.

Fleets aren’t losing the emissions battle because of engines—they’re losing it to downtime. This whitepaper exposes why DPF “cleaning” drains budgets, and how validated restoration delivers uptime, sustainability, and ROI at scale—proven across 17,000 buses in real-world operation.

This time EPA is targeting the California Air Resources Board’s Clean Truck Check law, also known as the Heavy-Duty Inspection and Maintenance Program.

"With prolonged weakness in freight demand and inflationary cost pressures, the rule’s 2027 implementation timeline threatens to intensify strain across our industry," ATA said.

Daimler, International, Paccar and Volvo Group are suing the California Air Resources Board on grounds that federal actions vacated the state’s efforts to enforce its own emissions rules.