That's exactly my point. It should NOT be 66 in AZ, because no cars HAD any emissions controls in 66 except for PCV, and the CA cars.
You guys down there need to get a grass roots deal together and raise hell with your state govt.
I'd bet if you added up ALL the 66/7 cars down there, there would not be many, and certainly not as many being driven everyday. Again, AZ is imagining requirements that "never existed."