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Department of Transportation

noun
1.
the department of the U.S. federal government that coordinates and institutes national transportation programs.
Abbreviation: DOT.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Department of Transportation in Culture

Department of Transportation definition


A department of the federal executive branch responsible for the national highways and for railroad and airline safety. It also manages Amtrak, the national railroad system, and the Coast Guard.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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