Final answer:
Children under a certain age and height are required to use a child car seat with a 5-point harness or a booster seat. Generally, children ages 0 to 2.5 should be in a rear-facing car seat, children ages 2.5 to 6 in a forward-facing seat, and children ages 6-13 in a booster seat until they reach the proper height for a seat belt.
Step-by-step explanation:
Guidelines for children car seat usage vary by region and state, but in general, children under a certain age and height are required to ride in a car seat with a 5-point harness or a booster seat. Typically, children ages 0 to 2.5 or until they exceed the maximum height or weight limit for a rear-facing seat, should ride in a 5-point harness seat. From around 2.5 up to 6 years old, they should transition to a forward-facing car seat with a harness. Children ages 6-13 may move to a booster seat until they are tall enough for the vehicle's seat belt to fit properly, which is usually at a height of 4 feet 9 inches. It's important to consult local regulations for specific requirements regarding the age, weight, and height guidelines for child passenger safety seats.