If you are a CDL-licensed driver, you should know that the DOT drug test detects five main groups of substances that can immediately take you off the road.

To comply with current regulations, employers of commercial vehicle drivers (CDL) must complete the annual query in the DOT Clearinghouse before December 31.

Complying with DOT regulations not only prevents penalties — it is the key to ensuring the continuity, reputation, and financial stability of your business. If you want to pass a DOT audit without complications, make sure to follow these 6 essential steps.