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:
Interior Air Quality System (IAQS)
A multifilter helps reduce gases and particles
in the incoming air, thereby reducing the levels
of odors and contaminants entering the vehicle.
The air quality sensor detects increased
levels o ...
Manually adjusted front seats
1 Front-rear adjustment: lift the bar and
move the seat to the position of your
choice.
2 Raise/lower the front edge of the seat
cushion: use the control to pump the front
edge of the cushion u ...
Convertible seats
Securing a convertible seat with a seat belt
Do not place the convertible seat in the front passenger's seat
NOTE
Refer to pages 49 and 50 for information on securing a child restraint u ...
