How are you allowed to transport a five-year-old child in your car?

In Germany, the law requires that children under 12 years old or shorter than 150 cm must be secured in a suitable child restraint system. This is why the child must use an approved child seat that is appropriate for their size and weight, which would be option one.

While option two, using a standard three-point safety belt in the back seat, may seem safe, it is not compliant for a five-year-old unless they are tall enough or it is an appropriate restraint for their size. Option three, using only a waist belt, is not acceptable at all, as it does not provide adequate protection and can be dangerous in the event of a crash.

Thus, it is essential to use a suitable child seat (option one) to ensure the child's safety and comply with the regulations.