The U.S. Justice Department, along with various state and federal regulatory agencies, released today the details with diesel engine maker Cummins Inc. for alleged violations of the Clean Air Act (CAA) and California law. Cummins has agreed to pay a $1.675 billion civil penalty and spend more than $325 million to resolve violations that include the use of software “defeat devices” to sidestep emissions testing and certification obligations.

The Cummins’ settlement comes seven years after Volkswagen pleaded guilty to intentionally programming turbocharged direct injection diesel engines to activate emissions controls only during emissions testing. Volkswagen was ordered to pay $14.7 billion to the federal government and state of California for installing the “defeat devices.”

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