The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, systems required by federal emissions laws. House File 2529 would require manufacturers of ...

A farmer harvests corn beside Highway 163. (Photo by Cami Koons/Iowa Capital Dispatch) The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, ...

The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, systems required by federal emissions laws.

Get insights on thousands of stocks from the global community of over 7 million individual investors at Simply Wall St. GE Aerospace and Kratos Defense won a U.S. Air Force contract to design a next ...

The EPA’s war on the dreaded diesel “limp mode” triggered by DEF systems just shifted into a much higher gear. While the initial focus centered on cleaning up the software for the 2027 model year and ...

The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...

Add Yahoo as a preferred source to see more of our stories on Google. EPA wants to eliminate truckers stranded by engine failures. (Photo: Jim Allen/FreightWaves) WASHINGTON — In a move to end “limp ...

The data collected will allow EPA to independently evaluate ongoing system failures. As of Feb. 2, engine manufacturers have 30 days to provide EPA with data on model years 2016, 2019 and 2023 ...

Breaking news, the EPA is forcing engine makers to reveal the truth behind their DEF systems for repairs, warranty claims to see if they have improved. They are also looking at if they even need to ...

The Environmental Protection Agency on Tuesday said it would put forth a rulemaking in the Federal Register seeking information to help it to permanently end diesel derates. The action follows an ...