Government Regulations
California Emissions Rules Face Legal Battle After EPA Congressional Review Decision
California Emissions Rules Face Legal Battle After EPA Congressional Review Decision
Jul 18, 2026
California emissions rules face a legal challenge over EPA's congressional revie...
Powertrain
Detroit Engine DEF Software Update Aligns with EPA Guidance for Commercial Vehicles
Detroit Engine DEF Software Update Aligns with EPA Guidance for Commercial Vehicles
Jul 18, 2026
Detroit Engine DEF Software Update supports EPA compliance. Updated software exp...
Government Regulations
US EPA DEF Sensor Rule Change Reduces Diesel Compliance Burden for OEMs
US EPA DEF Sensor Rule Change Reduces Diesel Compliance Burden for OEMs
Apr 11, 2026
EPA removes DEF sensor requirement to improve diesel system reliability. Shift e...