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).
That's why the National Highway Traffic Safety Administration now recommends that all children who have outgrown their car seat continue to ride in a booster seat until: 1  They're at least 8 years old AND 4 feet 9 inches tall. 2  They have outgrown the manufacturer's height and weight recommendations for their booster seat.