Yes, all commercial big rig operators in the U.S. are required to complete rigorous training and testing. However, truck drivers are still human and they often make mistakes, some of which can be costly. During an investigation, your accident lawyer may find that the truck driver was negligent in any of the following ways:
Being distracted by an electronic device
Driving aggressively
Misjudging the distance between vehicles
Falling asleep at the wheel
Driving while intoxicated or under the influence of drugs or alcohol