Department of Transportation regulation (49CFR Part 40) requires a DOT Urine and DOT Alcohol test in the following scenarios:
Pre-Employment Testing: Urine Test Required, Alcohol Test Optional
Post Accident Testing: Urine Test Required, Alcohol Test Required
Reasonable Suspicion Testing: Urine Test Required, Alcohol Test Required
Follow-Up Testing: Urine Test Required, Alcohol Test at Discretion of SAP
Return-to-Duty Testing: Urine Test Required, Alcohol Test at Discretion of SAP
The United States Congress recognized the need for a drug and alcohol free transportation industry, and in 1991 passed the Omnibus Transportation Employee Testing Act, requiring DOT agencies to implement drug and alcohol testing of safety-sensitive transportation employees. 49 CFR Part 40 (Part 40) is a DOT-wide regulation that states how to conduct testing and how to return employees to safety-sensitive duties after they violate a DOT drug and alcohol regulation. Part 40 applies to all DOT-required testing, regardless of mode of transportation.