In 1970 Penn Central became the biggest corporate collapse America had ever seen, leading ultimately to the initially nationalised Conrail taking the freight services (and quickly trimming the network by thousands of miles) and Amtrak and the states of New York, New Jersey and Maryland picking up the passenger business, and the GG1 fleet was dispersed accordingly. The bright blue was a big improvement over the dirty black, even if it didn't quite suit the GG1's lines. Unfortunately it only pertained to 4800, which retained its unique riveted bodyshell.