DOT — Department of Transportation | Glossary

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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 Services

DOT Physical Examination DOT Drug Test - 5 Panel DOT Drug Test (10-Panel)

Related Industries

Transportation Construction Oil & Gas

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