Mike,
Just what is a smoke test? And that landfill probably puts more pollution in the air than the truck. I know these garbage trucks up here are several years old and they drive them to the landfill. And they sure don't have any smog devices on them. How can you make an older diesel meet 2010 smog laws when there were none when it was made? Sounds as if this great republic is more interested in getting them off the road or getting all the money they can than in actually doing anything to clear the air.
Just as I have stated when my neighbor had to take his 3/4 ton diesel in for the smog check, it was a joke. Just asked if he had changed the chip, looked under the hood for a minute and then charged him whatever it is they charged as he would never tell.
Ron