The early 2007 Cab and Chassis are 2007 compliant as far as emissions go. They may be 2010 compliant now, I don't know for sure. My truck is has 2007 emissions on it. It does not have a NOx filter on it. There was nothing on my sales sticker about Blue Tec. I believe that the trucks that have that, Blue Tec, on the sales sticker are 2010 compliant. I don't know that for a fact, that is my belief. My truck, an early 2007 cab and chassis, is 2007 compliant. That, I know for a fact. And yes, it does have a DPF.