Physical distribution is important for most commercial and industrial operations. Because of local and over-the-road shipping and delivery, the world has become a much smaller place. It’s important for companies to own and maintain a fleet of quality vehicles, and even more important to hire drivers who will operate them safely. A standard component of hiring commercial drivers is ordering a DOT physical exam along with a drug test to confirm that they are drug free, and that they meet all of the physical requirements to complete the daily responsibilities of the job. Urinalysis is also a standard component of the exams to test for health problems that could affect their abilities to operate a truck or commercial vehicle safely.