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:
Volvo's recommendations
Why does Volvo believe that no child should sit in the front seat of a car? It's
quite simple really. A front airbag is a very powerful device designed, by law,
to help protect an adult.
Beca ...
Steps for Determining Correct Load Limit
1. Locate the statement "the combined
weight of occupants and cargo should
never exceed XXX pounds" on your vehicle's
placard.
2. Determine the combined weight of the
driver and pas ...
Label information
1 Model plate: includes e.g., Vehicle Identification
Number (VIN), codes for color and
upholstery, etc. The model plate is located
on the rear side of the B-pillar (the pillar
between the front ...
