wrote

That is an EPA law and applies to cities above a certain criteria. I
don't know if it is simply population or some air quality standard. I
know when I was in the DC area, PG county had emissions inspection
Chuck County didn't.
They have it is Tamps/St Pete, Miami and Orlando but not Ft Myers.

It's ridiculous. In Las Vegas, you have to have your car smogged, but if
you live over the hill in Pahrump, which is in the next county, you don't.
A lot of people commute to Vegas from Pahrump, driving in Clark County the
majority of the way.

Nevada does not have inspection laws. You can drive around with bad
headlights and brakes and tires, but they want you to meet EPA requirements.

Steve