Final answer:
All children under the age of 13 are required to use a child restraint system, such as car seats and booster seats, appropriate for their size and age to ensure safety in vehicles.
Step-by-step explanation:
The proper use of a child restraint system is required for all children under the age of 13. This includes various types of car seats and booster seats that are appropriate for the child’s age, weight, and height. For instance, children ages 0 to 2.5 years should be in rear-facing car seats, children ages 2.5 to 6 should transition to forward-facing car seats, and children ages 6-13 should use a booster seat until they are big enough for the vehicle's seat belt to fit properly. It is important for the safety of the child to use these restraint systems properly to prevent injuries in the event of an accident.