DOT drug and Alcohol Testing

A Drug and Alcohol Testing Program is a formal policy designed to promote safety and regulatory compliance by preventing substance use in the workplace. In safety-sensitive industries regulated by the U.S. Department of Transportation (DOT)—such as trucking, aviation, rail, and transit—this program is mandatory under 49 CFR Part 40 and applicable modal regulations (e.g., 49 CFR Part 382 for FMCSA-covered drivers). The program includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing.