DOT (Department of Transportation)
Federal department overseeing all transportation modes in the United States, including regulations for commercial driver health and drug/alcohol testing.
Key Facts
- Oversees FMCSA, FAA, FRA, FTA, PHMSA, and other agencies
- Drug/alcohol testing mandated under 49 CFR Part 40
- DOT testing uses a standardized 5-panel urine test
- Regulates safety across highways, aviation, rail, transit, and pipelines
The US Department of Transportation encompasses agencies like FMCSA, FAA, FRA, FTA, and PHMSA, each regulating different transportation modes. In occupational health, "DOT" commonly refers to DOT-regulated drug and alcohol testing (49 CFR Part 40) and DOT physical examinations required for commercial motor vehicle operators. DOT testing uses a strict 5-panel urine drug test and follows chain-of-custody procedures through certified laboratories.
Related Industries
Related Articles
2 regulatory updates across OSHA, DOT Physicals — here is what changed and what employers need to know.
FMCSA Temporary Exemption for Paper Medical Examiner Certificates During NRII TransitionFMCSA issued a temporary exemption allowing interstate CDL and CLP holders and motor carriers to rely on paper copies of medical examiner certificates as proof of medical certification for up to 60 da
DOT Final Rule: Hair Testing for Drug ScreeningDOT published final rule allowing hair testing as an alternative to urine testing for pre-employment drug screening of CDL holders. Employers may opt in to hair testing programs with proper MRO review
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States Covered
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