Only four of the nation’s 41 rail systems required to implement lifesaving technology to prevent train accidents met Monday’s deadline, according to the Department of Transportation.
The others — including Amtrak — have either applied for or been granted extensions of the deadline.
The technology, called positive train control, can prevent collisions and derailments. It involves installing equipment on locomotives and tracks that communicates information about the train’s speed as well as the position of the train and track switches.
The National Transportation Safety Board, which investigates rail accidents, has repeatedly called for positive train control. Chairman Robert Sumwalt told Congress last February that the board has identified 150 accidents, which caused 300 deaths, since 1969 that could have been prevented by the technology.