If a vehicle has less than 4 leaf springs, how many can be broken?

In the context of leaf springs and vehicle safety, a vehicle that has fewer than four leaf springs should not have any broken leaf springs. Leaf springs are a crucial component of a vehicle's suspension system, designed to support weight and absorb shocks from the road. If a leaf spring is broken, it can severely impact the handling and stability of the vehicle, leading to safety hazards.

When a vehicle has fewer than four leaf springs, the remaining leaf springs play an even more critical role in maintaining the vehicle's structural integrity and performance. Therefore, allowing even one broken leaf spring in such a configuration could create an unsafe condition. This is why, for vehicles with fewer than four leaf springs, it is mandated that none may be broken in order to ensure the vehicle remains in a safe and operational condition.