After two recent derailments at Penn Station, Governor Andrew Cuomo and New Jersey Governor Chris Christie want their states to be involved in reviewing Amtrak's maintenance of its tracks.

Amtrak and the Federal Railroad Administration are conducting a joint study of maintenance and efficiency issues at Penn Station following last Monday's derailment.

But Cuomo and Christie say New York and New Jersey haven't been invited to take part.

In a joint letter to Amtrak and the FRA, the two governors are asking for "independent verification" of track safety at the station.

They say their states should be involved since the bulk of people using Penn Station ride the Long Island Rail Road and New Jersey Transit.

The letter says in part, "this comprehensive review should take into account the causes of recent failures at Penn Station and any needed changes to the processes by which routine maintenance and emergency repairs are performed."

Even though Amtrak owns the tracks at Penn Station, New Jersey transit and the Long Island Rail Road carry far more passengers through the hub. 

In response, Amtrak issued a statement saying it will immediately share any findings to develop a plan for safe and efficent service.