Firefighters work on an early morning storm-related fire in the heavily damaged Brighton Beach section of Brooklyn on Oct. 31, 2012.
Amtrak is offering free travel to uniformed first responders in the wake of Hurricane Sandy.
The offer is extended to police and fire personnel, members of the National Guard and Federal Emergency Management Administration (FEMA), Red Cross and other uniformed agency personnel directly involved in the recovery effort.
First responders can travel for free between D.C. and Boston, Friday through Nov. 9. Acela Express service is not included.
Service along the train company's Northeast Corridor line had been completely shut down during the storm Monday and Tuesday.
Since then, modified service has been been gradually returning: south of Newark on Wednesday; between Richmond and New York on Thursday, and between New York and Boston on Friday.
"This historic storm created unprecedented damage, and our hard-working and committed crews returned service to the Northeast sooner than ever expected," Amtrak President and CEO Joseph Boardman said in a statement Friday. "There is more to do and we will continue to work diligently until full Amtrak service is restored."