The EPA questions if diesel DEF de-rates are essential for emissions compliance. Could changes be on the horizon? Discover ...
The EPA is escalating its response to consumer complaints regarding DEF system failures, announcing a new investigation aimed ...
Removing an emissions device, while no longer a criminal matter, still represents risk for haulers. One responded to EPA and DOJ's recent moves on DEF faults and diesel derates, even questioning ...
The Environmental Protection Agency is requiring 14 major diesel engine manufacturers to provide detailed information about ...
Following Monday’s right-to-repair announcement, EPA is demanding DEF failure data from engine makers, targeting shutdowns ...
The U.S. Environmental Protection Agency is ramping up its pressure on engine makers to fix persistent persistent diesel ...
The Trump administration is demanding warranty and failure data from top manufacturers in an effort to end truck engine ...
The EPA is considering eliminating the "limp mode" rule for diesel engines, a feature that drastically slows trucks and ...
EPA asked manufacturers for info in hopes to "PERMANENTLY eliminate the deratements ENTIRELY," agency boss Lee Zeldin said.
RFK Jr. says he is 'ending the war on protein.' Experts say it doesn't exist. Punxsutawney Phil has spoken—here’s what a meteorologist says about his 2026 forecast ...
The U.S. Environmental Protection Agency issued a clarification letter Monday to manufacturers saying that the Clean Air Act does not prohibit independent repairs to offroad diesel equipment such as f ...
Under today's guidance, EPA says farmers can temporarily override emissions systems to make repairs, as long as the equipment ...