If you want straight answers from the non-monkeys then you need to speak to an emissions technical center. In Colorado, probably the same in other states, the emissions program is run by the Department of Revenue. Says a lot doesn't it. /ubbthreads/images/graemlins/rolleyes.gif
Anyway, contact the governmental department that over sees the emissions process. Not the county licensing bureau. Go to the top, the state agency. They should be able to tell you if there is a local Tech center, not just a testing center, where you can go to get the straight skinny. You can probably even do this over the phone. It's there job to provide this type of service so they shouldn't treat you like a sufferer of Hansen's Disease when you inquire. In Colorado, these "tech" centers perform sneaky tests on the test centers to make sure they are checking what they should.
BTW, in Colorado the only "exempt" vehicles are brand new vehicles (a 4-5 year temporary exepmtion) and vehicles built prior to 1960. Any vehicle 1960 and newer is subject to emissions testing. However, once you pass and if the vehicle is over twenty five years old, then you can purchase "collectors" plates. These are different than "antique" plates. They are good for five years at a time and the vehicle never has to be tested again as long as you own the car. New owners will require another test though. These plates have no mileage restricitions and the 25 year qualifier is not set. My TR8 is registered as an 1980 (even though it is a 1978 according to BMIHT and the build plate) and it has collectors plates on it now.
Colorado currently has three levels of emissions testing. The toughest of which is actually on par with California if not a little tougher. Luckily, we have more loopholes to escape some of it than California does. Primarily only diesels are tested on the chassis dynos but the top tier programs can require the dyno for gasoline engines as well.
/ubbthreads/images/graemlins/cheers.gif