ODAPC advises the Secretary on national and international drug testing and control issues and is the principal advisor to the Secretary on rules related to the drug and alcohol testing of safety-sensitive transportation employees in aviation, trucking, railroads, mass transit, pipelines, and other transportation industries. The Office publishes regulations and provides official interpretations on drug and alcohol testing, including how to conduct tests, and the evaluation and treatment procedures necessary for returning employees to duty after testing violations.
![[Header] PHMSA - U.S. Department of Transportation - Pipeline and Hazardous materials Safety Adminis](/staticfiles/PHMSA/SiteHeaders/Images/PHMSASiteHeader.gif)
