Being DOT-certified indicates that a driver is permitted to operate commercial vehicles on public roads and that the vehicle he is operating is safe. The Department of Transportation mandates that all drivers of commercial vehicles pass a test on safe driving techniques and undergo physical examinations.
A commercial driver’s licence is necessary in the majority of states to operate public transportation vehicles, semi-trucks, and local delivery trucks. Employers hire people with a commercial driver’s licence because they are aware that they have been certified by the Department of Transportation through a 24-month physical exam.
