What does Title 21 require regarding child passenger safety?

Title 21 emphasizes the importance of child passenger safety by mandating the proper use of child safety seats that are appropriate for a child's age and size. This requirement is grounded in research that shows the effectiveness of properly fitted safety seats in reducing the risk of injury or death in accidents.

By specifying that child safety seats must match the child's age and size, Title 21 ensures that children are secured in a manner that offers the best protection during a vehicle crash. This includes guidelines for using infant car seats, convertible seats, and booster seats as the child grows, ensuring that they are always in an age-appropriate restraint system.

The other options, while they contain elements related to child safety, do not reflect the comprehensive approach that Title 21 takes toward ensuring child passengers are secured correctly and safely according to their developmental needs. The focus on using the correct restraint type for a child's specific conditions makes this regulation vital in minimizing risks associated with car travel for children.