PTC installation has been a fraught process nationwide, with members of Congress and the FRA promising consequences for railroads that don't at least qualify for an extension. Only a handful of railroads will have PTC fully active by the end of the year, though SEPTA expects to be one of them. PTC is installed on all of its vehicles, and there is only about 40 miles on its network where PTC isn't fully able to recognize and control all the trains using that track, which can include Amtrak and freight trains. Those gaps should be closed by the end of the year, SEPTA said.