Department of Transportation - DOT

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Glossary: Department of Transportation - DOT

Department of Transportation
United States Department of Transportation


The mission of the Department of Transportation is to: Serve the United States by ensuring a fast, safe, efficient, accessible and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people, today and into the future. It is also an operating administration of the U.S. administering regulations requiring alcohol and/or drug testing in accordance with 49 CFR Part 40 of federal regulations.


DOT Regulations and Resources:


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