It would appear that Cummins simply views CARB and the EPA as hands they must grease in order to continue doing business.
The other thing that is crazy to me, is the fact that both the EPA and CARB have continued to drag out all these charts and numbers about how their policies have reduced emissions by extreme levels, yet all these companies are allegedly cheating? If every diesel model is cheating, and the emissions have still exceeded goals, then why do we care at this point? It's gotta be just about power and control at this point, because the laws put in place to meet a goal seem to have been met.