Definitions for "Amtrak"
Operated by the National Railroad Passenger Corporation, this rail system was created by the Rail Passenger Service Act of 1970 (Public Law 91-518, 84 Stat. 1327) and given the responsibility for the operation of intercity, as distinct from suburban, passenger trains between points designated by the Secretary of Transportation.
Name (not an acronym) for the National Rail Passenger Corporation, a government-subsidized railroad. Amtrak's home page is
The National Railroad Passenger Corporation, a federally created corporation that operates most of the United States' intercity passenger rail service.
Amtrak Express Parcels is a parcel delivery company in the United Kingdom.