Atkinson is an English-language surname. The name is derived from a patronymic form of the Middle English Atkin.
These are much more conservative than state laws, in general (for instance, everyone should be in a booster seat from about age 4 to at least age 8) but remain less conservative than some of the european standards (for instance, the European Child Safety Alliance recommends that children remain in rear-facing carseats until 3 years of age).
Children under 2 or under the height and weight limit provided by child restraint system must sit in rear facing car seat. Children 5 years and younger must be in an appropriate child safety seat. Children at least 4 and up to 8 years old and under 4 feet 9 inches must use a booster seat.