The U.S. Department of Transportation and the Pipeline and Hazardous Materials Safety Administration are introducing 2026 compliance changes affecting drug and alcohol testing and pipeline safety.
No Safe Harbor: DOT Rejects State-Licensed Marijuana as Basis to Overturn Positive Drug Test Results
In late May 2026, the Office of Drug and Alcohol Policy and Compliance and the Office of the General Counsel of the U.S. Department of ...
The U.S. Department of Transportation (DOT) has issued official guidance reinforcing its zero tolerance for cannabis use, clarifying that transportation workers cannot use state-licensed medical ...
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