I doesn’t make any sense to me that they exempt older cars. They are the ones that needed it more than the newer ones. I guess that’s why you see old cars on the road leaving a smoke screen behind them.
It’s harder for older cars to pass, which may require more work done to get them there. And even then, they may not be able to pass. Considering that most older cars are driven by poorer people who may not be able to afford a newer car, it could place an undue economic burden on them.
And also considering that as cars age past a certain point they drop out of use, they probably don’t statistically account for much pollution, so forcing them to be compliant is a waste of money.
Although I’m surprised the dealer lobby dirtbags haven’t pushed for ALL cars to be complaint with both safety and smog checks. In Japan, there isn’t much of a used car market (or wasn’t when I was there 20 years ago) because they have hardcore mandatory safety inspections that *every* car must pass regardless of age. The problem was that after a certain age, it may cost more to get your old car to pass inspection than just buying a brand new one. Military members were the only ones driving older used cars because we were exempt from a lot of the inspection requirements (which was evidence that most of them were bull****).