Just completed my second state emission test on my CTD...don't like the test. After having just purchased this truck in 2008, my first diesel, I got my registration renewal notice which included an emission test. When the technician explained the "snap test", which requires revving the engine way the hell higher than I ever do, I asked if that was the only option...yup, that's how it's done he replied. After completing that test, I did some follow-up research and find that the test was developed by SAE. I contacted one of the referenced principals noted and explained my concern. He stated that it is not damaging to the engine or turbo (easy for someone to make that statement if they have no skin in the game). For those non-diesel owners, it requires taking the rpm to 2000 then stomping the accelerator to the floor...at which point the rpm goes well over 5500 (high for diesels) where it holds momentarily then drops back to idle. The test requires this be done 6x total... more if you fail to execute the "snap" correctly. I have subsequently asked about this at several local Dodge dealers while getting service and they too believe the test is hard on the engine. I also see considerable discussion about this on other forums and most owners are concerned about adverse effects. If they ultimately find performing this test is damaging, I wonder, do you suppose WADOT will team up with SAE and cover the repairs. What do other forum members think of the test?