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 ...
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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 requirement for all diesel equipment, a decision the agency frames as a direct ...
CCJ

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

Recently the Environmental Protection Agency (EPA) announced that diesel exhaust fluid (DEF) quality sensors are not required on trucks. The American Trucking Associations (ATA) and others have argued ...
CCJ

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

The U.S. Environmental Protection Agency (EPA) last week issued guidance that drops the requirement for Diesel Exhaust Fluid (DEF) sensors as part of a truck's aftertreatment system and allows truck ...
Truck News

EPA removes DEF sensor requirement for diesel engines

President Donald Trump and the U.S. Environmental Protection Agency announced guidance allowing the removal of the DEF sensor requirement for all diesel equipment. EPA said sudden speed losses caused ...
Transport Topics

EPA Moves to Address DEF System Failures

EPA approved guidance allowing diesel manufacturers to replace urea quality sensors with NOx sensors in DEF systems. The agency said faulty DEF sensors are a significant source of warranty claims and ...
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 ...
AOL

Trump Scraps DEF Sensor Mandates To Save Farmers And Truckers Billions

The White House came alive today with the Great American Agriculture Celebration, but the real fireworks happened when President Trump announced a massive regulatory shift that is set to change the ...
Truckinginfo

EPA Targets DEF Sensor Failures Behind Truck Derates

The EPA is targeting faulty DEF sensors with new guidance allowing a different type of sensor to monitor NOx emissions in diesel engines. In the Trump administration’s latest steps to address the ...
https//carbuzz

EPA Pushes Diesel Manufacturers Away From DEF Sensors, But Not The Fluid

Evan Williams is an automotive journalist and mechanical engineering technologist with more than a decade of experience in the industry. He has written for the Toronto Star and AutoTrader Canada and ...
Yahoo

EPA axes diesel exhaust fluid sensor requirements

Add Yahoo as a preferred source to see more of our stories on Google. Smoke bellows from the exhaust stacks of a tractor in Miami, Florida. Trucking groups hailed the EPA’s action to rescind a ...