Word is that less than 2% of the vehicles being inspected now are older than 1996, and the tail pipe emission testing equipment is no longer worth the expense for so few cars. It was the inspector that I use for my inspections that told me this. >25 year old vehicles have always been exempt here. My 87 is exempt next year, and 85 has been exempt for being an old diesel, and now 27 years old. The 1996 and newer use the OBD-II computer data for pass/no pass, they will stay the same.