How must children under 8 years old be secured in a vehicle?

Children under 8 years old must be secured in a child safety seat in the appropriate position to ensure their safety while traveling in a vehicle. This requirement is based on age, weight, and height considerations that are crucial for effective protection during a crash. Child safety seats are designed to protect children by keeping them securely in place and properly harnessed, significantly reducing the risk of injury.

Using a child safety seat helps to position the vehicle’s seat belt correctly across a child's body, which is essential, as improper seat belt positioning can lead to serious injuries in an accident. Additionally, as children grow, the type of safety seat may change, such as transitioning from an infant seat to a convertible or booster seat depending on their age and size.

The other options do not meet the safety standards mandated. Booster seats, while necessary for some children, are not the sole requirement for all under 8, and standard seat belts are not designed for the anatomy of younger children. Failing to secure a child appropriately in a vehicle puts their safety at severe risk.