Emissions-control technology for mobile sources has developed in a series of interactive steps with the promulgation of emissions standards for new vehicles and engines and for fuel regulation. For ...

GM has issued an emission recall for certain units of the 2025 Chevy Silverado 1500 and 2025 Chevy Silverado HD pickup trucks that were potentially produced with incorrect Vehicle Emissions Control ...

A new policy has halted all criminal investigations and prosecutions of those who bypass vehicles’ emissions control systems, although civil enforcement may continue. The Justice Department on ...

Some 2025 GMC Sierra 1500 and 2025 GMC Sierra HD trucks are included in an emission recall voluntarily issued by General Motors, which refers to a problem in which the Vehicle Emissions Control ...

The agency lays out weak and contradictory arguments to support a plan to defang itself. The Environmental Protection Agency has officially proposed ending its regulation of greenhouse gases for new ...

Air pollutant emissions from mobile sources have been regulated for almost half a century. During this time, the focus has largely been on tightening emissions standards for on-road vehicles and ...