Thousands of people, billions of dollars, and millions of miles of roads, bridges, tunnels, and tracks are required to keep the American transportation system up and running every day. Created in 1966, the Department of Transportation coordinates all this activity and now regulates every major mode of transportation to make sure Americans get where they need to go safely and efficiently. This fascinating account helps young readers understand the full extent of a department that affects everything related to American transportation from the number of hours truck drivers sleep, to speed limits on highways, to the banning of smoking on planes.