Which type of vehicle is NOT required to follow child restraint laws?

In Indiana, school buses are not required to adhere to child restraint laws, which is why this option is correct. The rationale behind this exemption is based on the inherent safety features and design of school buses. These vehicles are built with special safety measures, including high seat backs and compartmentalization, which provide a level of protection that is distinct from standard passenger vehicles.

In contrast, private sedans, pickup trucks, and minivans are all required to comply with child restraint laws to ensure the safety of young passengers. These laws mandate the use of appropriate car seats that are suitable for the child's age, weight, and height, as standard passenger vehicles do not have the same built-in safety features as school buses. Thus, these vehicles must adhere to child safety regulations to protect children while traveling.