The California Air Resources Board (ARB) held a July 20 public workshop to discuss the Selective Catalytic Reduction (SCR) system attributes that will be evaluated during staff’s review of an application for certification.

 

SCR is currently the primary oxides of nitrogen (NOx) control strategy for most heavy-duty on-road diesel engines.  Because SCR systems involve operator intervention, SCR systems should be designed to assure NOx emissions compliance and continued safe vehicle operation.

 

This Presentation may be accessed online