SACRAMENTO - On November 2, 2015, ARB  issued to Volkswagen AG, Audi AG, Volkswagen Group of America, Inc., Porsche AG and Porsche Cars North America an In Use Compliance Letter addressing concerns over test results for  2014, 2015, and 2016 vehicles with 3.0 liter diesel engines,  alleging that these model years included defeat devices. On the same day EPA issued a Notice of Violation  to these same parties.
 
During a meeting yesterday, VW and Audi officials responded to those concerns and told EPA and CARB that the issues raised in the In-Use Compliance letter extend to all 3.0 liter diesel engines from model years 2009 through 2016. Based on this information, EPA and CARB will continue to investigate and take all appropriate action under their respective authorities.