Under the Rail Passenger Service Act of 1970, Congress created the National Railroad Passenger Corporation (NRPC) to subsidize and oversee the operation of intercity passenger trains.
Mediante a lexislación do servizo de pasaxeiros do servizo de ferrocarril de 1970 o Congreso creou a National Railroad Passenger Corporation (NRPC) para subvencionar e para supervisar as operacións dos trens de pasaxeiros interurbanos.