It’s usually mandatory to undergo drug testing if you’re in the transportation industry. It’s simply part of the job. Drug testing became a requirement in 1991 as part of the Omnibus Transportation Employee Testing Act. It’s part of the U.S. Department of Transportation’s (DOT) effort to ensure that all transportation providers are drug- and alcohol-free – whether on the road, rails, waterways, or in the air. In this course, we’ll provide a general overview of the DOT drug testing rules and procedures required for employees who perform safety-sensitive work.