Well, this took me a freaking hour to find:
http://ehso.com/ehshome/auto-emissions_chronol.htm
And this page (
http://www.uctc.net/access/24/Access 24 - 05 - Scrapping Old Cars.pdf ) makes some claims, but I don't know how to judge their accuracy.
-Spike
Thanks for the research. Curious, the testing history page only lists the Nox requirements. My FJ40 has never been tested for that. It's always HC (hydrocarbon) ppm and CO (carbon monoxide) % they test for. I'd really like to see what the EPA standard was for HC and CO in 1977. Funny thing is, I have a V8 Chevy under the hood and it passes. Without having any of the required emission control devices functioning. Kinda makes you wonder what good they actually do. All of the crap is in there looking good for the man but doing absolutely nothing. Except putting more load on the engine and lowering my gas mileage. Hmmm, on second thought I guess it does something. Like increase emissions due to lower fuel efficiency.
As for Jennifer Dill, PhD from University of California Berkeley and her thesis?
Ehh, whatever. Whenever I see phrases like "it appears" "seems to" and "it turns out" In something that presents itself as a valid study, I'm a bit skeptical. Particularly when there's lots of really pretty pie charts and no verifiable data. Never mind my opinion of her dubious PhD from Berkeley. If anything that document only serves to not resolve the question of scrappage programs being a solution.
I wonder what would be the result of a serious study into the amount of vehicle emissions needlessly created by the testing program itself? Millions of cars tested every year, most of them needlessly because they pass. Yet they must be driven to and from the test, idle in line, and run on a dyno. Is the amount of lower emissions from the failed vehicles brought into compliance greater than the amount tested to pass all of the others that pass?
Why is it the average car driving citizen bears the so much of the burden here? Money, that's why. How much pollution does the average NASCAR or NHRA race emit? Airline companies? Trucking companies? Railroads? I don't know, and probably can't find out. All of these polluters are powerful economic forces and our government doesn't want us to know those facts. Instead, pick on the polluters with little to no power to point a finger back.
Average Joe cars are emitting less and less every year. With every passing year "old" cars become less significant in the picture. Right now cars from the 90's are "old" and those vehicles were doing a much better job on emissions. Testing a "classic" is just pointless and that's why the law that started this thread is a good thing. Even if it is narrowly focused. A better law would take actual mileage driven into account. I'd even be for bringing back the remote sensing program and actually nailing the real gross polluters Instead taking money from those that don't.
I'm not out to pollute the planet with my old clunkers. I just think the government should be kept from sticking their freakin bureaucratic hands in the pocket of the people whenever possible.
Another point of view
http://www.reasontofreedom.com/Emission_Testing.html