What is the minimum requirement for brake systems on all vehicles equipped with brakes?

The minimum requirement for brake systems on all vehicles equipped with brakes is that there must be at least one control device. This control device is essential for the operation of the brakes, allowing the driver to slow down or bring the vehicle to a stop. The emphasis on a single control device reflects the basic functional necessity of having a operative mechanism that the driver can use to manage the vehicle's speed and ensure safe operation.

While other vehicles may be equipped with additional control devices for enhanced performance or redundancy, the regulation specifies that a single control device is sufficient to meet the fundamental requirement for brake systems. This ensures a baseline level of safety and control, making it possible for the driver to operate the vehicle effectively under normal conditions.