Morning Overview on MSN

EPA drops DEF sensor requirement after Trump push, reports say

The Environmental Protection Agency announced on March 27, 2026, that it is removing the diesel exhaust fluid sensor ...
Farm Progress

EPA’s DEF sensor rollback a win for diesel farm equipment

Farmers gain relief as EPA eliminates DEF sensor rules, cutting costs and reducing equipment failures during critical ...

DEF sensors no longer required on trucks, other diesel equipment: EPA

EPA changes its diesel exhaust fluid sensor policy. The post DEF sensors no longer required on trucks, other diesel equipment: EPA appeared first on FreightWaves.

New EPA Guidance On Diesel Exhaust Fluid (DEF)

Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust ...

Will the end of DEF sensors mean a reduction in its consumption?

If a truck driver wants to save a few bucks by running some of its miles without diesel exhaust fluid (DEF), it’s now going ...
Fast Lane Only on MSN

EPA urges diesel makers to drop failure-prone DEF quality sensors

Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the ...
Commercial Carrier Journal

DEF sensor delete 'not simple' but a 'common‑sense path forward'

The EPA is encouraging manufacturers to return to or adopt NOx sensor-based strategies to improve system robustness and reduce failures associated with DEF sensors, but OEMs are largely left to ...
Commercial Carrier JournalOpinion

End of DEF quality sensors a win for reliability, but what about the environment?

Selective catalyst reduction (SCR) systems were introduced in 2010 in the United States to meet the NOx requirements. With an ...
CarBuzz

Apparently, Feds Are Fed-Up With DEF Diesel Systems, Too

Added information on DEF / DPF system history for on-road and off-road diesel-powered vehicles and equipment. The run of ...
Trucking Info

EPA Targets DEF Sensor Failures Behind Truck Derates

New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary ...

EPA Tells Diesel Engine Makers to Ditch One of the Most Unreliable Emissions Components

The feds aren't scrapping DEF altogether, but this could potentially address a large portion of emissions system failures.
Land Line

EPA takes aim at DEF sensors that sideline truckers

Sick of DEF failures shutting you down? EPA is pushing changes that could reduce disruptions caused by faulty sensors.