I live in NC now, they have safety inspections state wide, emission inspections for specific counties. I was an inspector when I worked on cars back in 85-89. I remember when the emission stuff rolled on, we got a letter explaining the increase revenue the new inspections were going to create, It was never about the environment. The exhaust sniffer was pretty expensive, so we opted out of inspections. I moved to SC in 98, they used to have statewide inspections, but after a cost analysis, they determined it was costing the state too much money to run a safety inspection program and they eliminated it. I moved back to NC last year and had to have my 06 Dodge Ram inspected. I've got it registered in a non emission county. It took me a while to find someone to inspect it