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:
Bulb specifications
NOTE
Please consult a Volvo retailer’s Parts
department for the most up-to-date specifications. ...
Refrigerant
Volvo cares about the environment. The air
conditioning system in your car contains a
CFC-free refrigerant – R134a. This substance
will not deplete the ozone layer. The air conditioning
system ...
Bluetooth® functions in the center console control panel
Character keys containing letters and numbers for dialing numbers, adding
phone book entries, etc.
TEL: Press this button to activate/deactivate the Bluetooth function.
TUNE: Turn to navig ...
