Really? I mean, come one now. Really? The EPA can pick apart the pollutants and say just this part came from Cummins? Whatever EPA. There is no way to say this much came from JUST Cummins engines. I rest my case. (I am very biased towards the EPA)EPA estimates that Cummins actions resulted in approximately 167 excess tons of nitrogen oxides and hydrocarbon emissions, and 30 excess tons of particulate matter emissions over the lifetime of the non-conforming engines. Cummins will mitigate the effects of excess emissions from its non-conforming engines through permanent retirement of emission credits equal to the excess tons of pollution.