3. Department of Transportation
The Federal agency responsible for regulating interstate shipments of hazardous materials is Department of Transportation.
The U.S. Department of Transportation is one of the executive departments of the U.S. federal government, headquartered in 1200 New Jersey Ave SE, Washington, DC 20590, United States.
It was founded on 1st of April, 1967. But, it was established on Oct 15, 1966 by the United States Congress.