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

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

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 ...

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 ...

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

In a major move aimed at “freeing up” the American supply chain, President Trump and EPA Administrator Lee Zeldin announced ...

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

Smoke bellows from the exhaust stacks of a tractor in Miami, Florida. Trucking groups hailed the EPA’s action to rescind a ...

New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary derates and downtime caused by failures in the sensors designed to ...

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

The changes allow equipment manufacturers to use nitrous oxide sensors and give farmers the ability to make repairs on DEF sensors.

The White House came alive today with the Great American Agriculture Celebration, but the real fireworks happened when ...