What is the maintenance requirement for the vehicle's handbrake?

The requirement that the handbrake should be able to stop at least two tires is based on the fundamental safety functions of a vehicle. The handbrake, also known as the parking brake, is designed to hold the vehicle in place when parked and to provide an additional measure of safety in the event of a footbrake failure. Its effectiveness is crucial, particularly on inclines, where a malfunctioning handbrake could lead to the vehicle rolling away.

In essence, ensuring that the handbrake can effectively stop at least two tires helps to maintain safety standards, as it confirms that the vehicle has a reliable backup system for halting motion. This requirement is an important aspect of vehicle inspection and maintenance practices, reinforcing the necessity of having a functional handbrake for responsible vehicle operation.