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:
Storage spaces
1 - Compartment in door panel 2 - Storage pocket on the front edge of the front
seat cushions 3 - Glove compartment 4 - Storage compartment 5 - Jacket holder 6
- Storage compartment, 12-volt soc ...
Phone book
The hands-free system uses two phone books (one with the cell phone's list of
contacts and one with contacts saved directly in the infotainment system), which
are combined to form one phone bo ...
Tire age
Tires degrade over time, even when they are not being used. It is recommended
that tires generally be replaced after 6 years of normal service. Heat caused by
hot climates, frequent high loading c ...
