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.
Because ...
Applicable warranties
In accordance with applicable U.S. and Canadian
regulations, the following list of warranties
is provided.
• New Car Limited Warranty
• Parts and Accessories Limited Warranty
• Corrosion Protec ...
Introduction
Volvo recommends the use of Volvo trailer
hitches that are specially designed for the vehicle.
NOTE
See page 353 for the maximum trailer and
tongue weights recommended by Volvo.
• Observe the l ...
