Commercial Driver's License

Answer: D - It has been proven that the average person needs between seven and eight hours of sleep each 24 hour period. Many commercial vehicle accidents and tragedies have occurred because drivers did not get the sleep they needed and fell asleep behind the wheel. Federal law now mandates that certain commercial drivers operate their vehicles for a set period of hours per day and use the rest of the time for rest, sleep, and other "non-driving" activities.