Effective January 1, 2007 there is a change to the Hawaii CSS law.
The change affects children ages 4-8 in regards to having to be in a booster seat, with these exceptions:
(2) If the child is four years of age or older, but less than eight years of age,
the person operating the motor vehicle shall ensure that the child is properly restrained in a child safety seat
or booster seat that meets federal motor vehicle safety standards at the time of its manufacture; except
as provided in paragraph (3): and
(3) If the child is four years of age or older but less than eight years of age, the
person operating the motor vehicle shall be exempt from properly
restraining the child in a child safety seat or booster seat that meets federal
motor vehicle safety standards at the time of its manufacture if the child is
restrained by a seat belt assembly and;
Over four feet and nine inches in height; or
Over forty pounds and traveling in a motor vehicle equipped only
With lap belts, without shoulder straps, in the back seat.