Truck drivers are meant to follow many different regulations. They need medical checkups and clearances, valid licensing, training and education. They have to follow distracted driving laws and obey speed limits. They have restrictions on how long they can work and how long they have to sleep when they're on the job.
Despite this, truck drivers cause many accidents each year. Many are a result of a lack of sleep, pushing for deadlines that are nearly impossible and violating a series of federal regulations.