Final answer:
The statement that the child safety seat should not move more than one inch side to side or back and forth at the belt path is true, ensuring the seat is firmly anchored for the child's safety.
Step-by-step explanation:
True or false: The child safety seat should not move more than one inch side to side or back and forth at the belt path once it is secured in the car. The statement is true. Once a child safety seat is installed in a vehicle, it should be anchored firmly to ensure the safety of the child. The seat should not be able to move more than one inch in any direction at the point where the seat belt or latch system is routed through the seat. This ensures that the seat is properly secured and can provide maximum protection for the child in the event of a collision.