How do states use OBD II for emission inspections?

Many states connect a computer directly to a vehicle's OBD II system. The inspector can then read "faults." In some states, this type of inspection has replaced the tailpipe emission test.
See also:
Locking/unlocking the tailgate
Tailgate unlock button on the remote key
Unlocking the tailgate with the remote
key
- Press the tailgate unlock button on the
remote key to unlock (but not open1) the
tailgate. See also page ...
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