See also:

Precautions on child restraints
WARNING Failure to follow the warnings and instructions for proper child restraint selection, use, and installation could result in serious injury or death to a child or ...

Small children
Children that are over 1 year old and weigh at least 20 lbs (9 kg) should remain in a rear-facing child restraint as long as possible up to the height or weight limit of the child restraint. Childr ...

Readiness for inspection/maintenance (I/M) test
WARNING A vehicle equipped with Four-Wheel Drive (4WD) should never be tested using a two wheel dynamometer (such as the dynamometers used by some states for emissions testing), or similar equipm ...