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Illustration of Department of Justice building superimposed by truck exhaust stacks
NewsJanuary 27, 2026

Justice Department Pulls Back on Criminal Prosecution of Diesel Emissions Deletes

The Trump administration has announced it will no longer criminally prosecute “diesel delete” cases of truck owners altering emissions systems in violation of EPA regulations. What does that mean for heavy-duty fleets?

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Articlesby Jim ParkJanuary 21, 2021

A New Approach to DPF Maintenance

Diesel particulate filter maintenance takes more than waiting for the yellow light to come on and performing a forced regeneration.

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Articlesby Jack RobertsMarch 13, 2019

Can Emissions Repair Costs be Contained?

The addition of selective catalytic reduction and diesel particulate filter aftertreatment to modern trucks forced fleets and manufacturers to shift expectations on the fly. These two fleets met the emissions maintenance monster head-on — and won.

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Newsby StaffOctober 3, 2018

CARB Levies Heavy Fine on Company Selling Used Diesel Soot Filters

The California Air Resources Board has penalized LKQ Corporation for selling used diesel particulate filters, which is illegal in the State of California.

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Articlesby Jim ParkFebruary 28, 2018

How Drivers Can Make or Break Truck Aftertreatment System Maintenance

Parked forced regenerations of diesel particulate filters continue to frustrate and confuse drivers. Drivers under time constraints often tempt fate and continue their journeys, ignoring regen requests.

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ProductsJune 14, 2016

AP Exhaust Offers Aftermarket DPFs for Class 2 and 3

AP Exhaust Technologies is offering a new line of diesel particulate filters for the aftermarket that are designed for use in light and medium-duty diesel-equipped vehicles.

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NewsMarch 3, 2016

Mack Offers Single-Package Aftertreatment System

The Mack ClearTech One is a single-package exhaust aftertreatment system that combines the diesel particulate filter, selective catalytic reduction and diesel exhaust fluid dosing system into one unit.

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Articlesby Denise RondiniFebruary 26, 2016

Commentary: Keeping DPFs Clean

Exhaust gas circulation valves and coolers and DPFs have been around since 2007, but not all fleets have a good understanding of the proper cleaning cycle.

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ProductsJanuary 8, 2016

Cardone Offers Remanufactured DPFs for Medium-Duty

Cardone Industries’ A1 Cardone remanufactured diesel particulate filters are designed to be an alternative replacement for light- and medium-duty diesel trucks.

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ProductsSeptember 24, 2015

Filtertherm Gen 2 Bakes Diesel Particulate Filters

Diesel Emissions Service’s Filtertherm Generation 2 Thermal oven is a diesel particulate filter oven built specifically for baking DPFs.

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