Commercial motor vehicle inspectors conduct brake system inspections (mainly Level IV Inspections) on large trucks and buses around North America during Brake Safety Week to identify brake system violations.
A properly working brake system is critical for the safe operation of commercial motor vehicles. Commercial motor vehicle brakes are built to withstand harsh conditions; yet, they must be tested and maintained carefully and consistently to ensure that they operate and perform effectively throughout the vehicle’s life.
Brake violations account for the majority of out-of-service violations cited during roadside inspections. Inadequately installed or maintained brake systems can significantly lower the braking capacity and stopping distance of trucks and buses, posing a substantial risk to the driver and public safety.