Roseville-based firm on Tuesday pleaded guilty in federal court in Sacramento to conspiracy and for manufacturing and selling illegal "defeat devices" that sidestep emission controls, a U.S. Attorney said.
A California truck parts company has pleaded guilty to conspiracy to violate the Clean Air Act and defraud the government, and to tampering with the emissions control systems of diesel trucks.
A California company will pay $1 million for violating federal environmental laws by making and selling devices that defeated smog controls on diesel trucks