In Michigan we have no inspections of any kind. You can cut the catalyst off a brand new car and run leaded gasoline in it. It isn't strictly legal, but nobody is ever going to know.
The end result is that there are thousands of cars on the road in this state that are total deathtraps to the drivers and anyone around them. Four bald tires in the snow, suspension is falling apart, etc. Nowhere is this more true than in the SE, which is, unfortunately, where I work.