Once I took my dog with me. They wouldn't let me test even though they don't have to get in the vehicle. I know there are idiots who would show up in a car they DID have to enter with dogs, but my car isn't one of them.
I would be interested to know how effective the emissions programs really are. They are a pain and hassle, but, as stated in the earlier post, I can clearly remember the smell of sitting in traffic back in "the good old days", not to mention the smell from my own low buck rides. I have noticed a considerable smell in other countries too - mainly due to the prevalence of diesel - but think we here have extremely clean running cars.
Now, is it federal standards or local emission testing?