Honda Civic Hybrid 2004 Online Reference Owner's Manual page 47

Protecting Larger Children
Some states also require children to
use a booster until they reach a
given age or weight (e.g., 6 years or
60 lbs). Be sure to check current
laws in the state or states where you
intend to drive.
Booster seats can be high-back or
low-back. Whichever style you select,
make sure the booster meets federal
safety standards and that you follow
the booster seat maker's instructions.
If a child who uses a booster must be
in front, move the vehicle seat as far
back as possible and be sure the
child is wearing the seat belt
properly.
44
Driver and Passenger Safety
A child may continue using a booster
seat until the tops of their ears are
even with the top of the vehicle's or
booster's seat-back. A child of this
height should be tall enough to use
the lap/shoulder belt without a
booster.
When Can a Larger Child Sit in Front
The National Highway Traffic Safety
Administration and Transport
Canada recommend that all children
ages 12 and under be properly
restrained in the back seat.
If the passenger's front airbag
inflates in a moderate to severe
frontal collision, the airbag can cause
serious injuries to a child who is
unrestrained, improperly restrained,
sitting too close to the airbag, or out
of position.
The side airbag also poses risks. If
any part of a larger child's body is in
the path of a deploying side airbag,
the child could receive possibly
serious injuries.