Emission testing is only in the densely populated areas of Utah, according to DMV. That includes areas such as Salt Lake and Davis counties. Washington County has a safety inspection, but not emission testing.
which ones don't would be a easier question to answer, I know South Carolina does not
I have a 1999 E350 cargo van and it does not require emission testing
In the state of Arizona, yes. Most states will require newer vehicles to pass emission testing if you live/work in a metropolitan area. If you live out in the sticks but your full time work is in a metropolitan city then you still must pass emissions testing.
This is testing to ensure vehicles do not emit too many undesirable fumes and exhaust vapours
both
It would be approximately $15 to $30 depending on your location
Jeffrey W. Roedell has written: 'Acoustic emission characterization of failure for single fiber composite materials' -- subject(s): Composite materials, Testing, Fracture, Acoustic emission testing
Any state that requires emissions testing will require you to have one regardless of the vehicles age. In Connecticut any vehicle 25 years old or older is exempt from emission testing and we no longer use emission stickers on any vehicle whatever the age.
Most likely NOT.
Oto-acoustic Emission testing(OAE) is one of the hearing test undergone in children. It Provides an idea about how hair cells in the cochlea are working. They respond to sound by producing a very soft sound of their own called an oto-acoustic emission.
States that are higher in population usually have emission test to keep down air pollution. In states that have a low population air pollution isn't as much as a problem so they don't have emission tests.