Car inspection is done state by state and AFAIK not national. It’s implemented under the idea it could help the environment. In reality, as usual, it makes cars less accessible to poor people, and let’s people who “roll coal” in their new 0% down 50% APR 2027 Ford™️ F350®️ Pickup Truck that they only use to drive to their job as an accountant because they know they guy doing the inspection, do whatever the hell they want.