The CNJ operated both freight and passenger service along the line into the twentieth century, referring to it as the Perth Amboy and Elizabethport Branch. Passenger trains to Bay Head Junction, Atlantic Highlands, Freehold and Atlantic City (including the Blue Comet) utilized the line. There were passenger stations at Newark Airport, Elizabethport, Carteret, and Sewaren. At Elizabethport the CNJ also operated a car repair shop. Passenger service along the line ended in 1967 with the advent of the Aldene Plan when the Bay Head trains (the line's only remaining commuter service) were moved to Newark Penn Station. In 1976 Conrail took over ownership of the line and operation of the substantial freight business the line generated.