Final answer:
The inspection of vehicles by the driver is mandated by federal and state laws to ensure road safety.
Step-by-step explanation:
The inspection of vehicles by the driver is mandated by federal and state laws. It is not just a matter of professionalism but a requirement for ensuring road safety. Both federal and state laws impose specific regulations for vehicle inspections to ensure that they are in proper working condition and comply with safety standards. These inspections help prevent accidents and maintain the safety of drivers and passengers on the road.