EPA News Updates

EPA has proposed ending diesel exhaust fluid-related engine derates, replacing the gradual dialing back of truck performance with visual or audible notifications.

EPA’s proposal would keep in place the tighter NOx emission limits set to go into effect in January but would scale back a significant warranty-coverage expansion.

EPA is expected to release a draft of its long-awaited notice of proposed rulemaking on changes to NOx tailpipe emissions this week, according to ATA.

Cummins and Paccar are rolling out software updates tied to revised EPA guidance on DEF inducement. The changes aim to improve uptime and maintain missions compliance.

DTNA is rolling out a software update that incorporates revised diesel exhaust fluid inducement parameters, lifting the minimum speed before work must be performed.

ACT Research preliminary data showed orders increased 103% year over year, while FTR Transportation Intelligence reported an even larger 124% gain.

It is not clear how much or how quickly the loosening of the refrigerant rule might impact grocery prices.

The EPA has proposed delaying stricter emissions standards for light-duty and Class 3 medium-duty vehicles until model year 2029.

“We made sure that going into 2027, our service intervals are improving,” International Motors Director of Engineering Navtej Singh said at ACT Expo.

The agency is expected to leave in place a requirement that NOx emissions for heavy-duty trucks fall to 35 milligrams per horsepower-hour from 200 mg/hp-hr.