President Donald Trump and the U.S. Environmental Protection Agency announced guidance allowing the removal of the DEF sensor ...

While diesel-powered passenger vehicles are increasingly limited in the U.S., they remain vital, especially for those in the ...

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

The Trump administration has updated diesel engine rules to prevent trucks and farm equipment from slowing down or shutting ...

On Friday, the U.S. Environmental Protection Agency released the following: Today, at the White House Great American Agriculture Celebration, President Trump announced another decisive action U.S.

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

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

The U.S. Environmental Protection Agency is ramping up its pressure on engine makers to fix persistent persistent diesel exhaust fluid (DEF) system failures that have disrupted farming, trucking, and ...

The Environmental Protection Agency is requiring 14 major diesel engine manufacturers to provide detailed information about diesel exhaust fluid system failures that have affected farmers and truckers ...

The move follows a February action seeking to end diesel derates. EPA cited the Small Business Administration as saying its ...