CSX Corporation is an American holding company focused on rail transportation and real estate in North America, among other industries. The company was established in 1980 as part of the Chessie System and Seaboard Coast Line Industries merger. The various railroads of the former Chessie System and Seaboard Coast Line Industries that are now owned by CSX Corporation were eventually merged into a single line in 1986 and it became known as CSX Transportation. CSX Corporation currently has a number of subsidiaries beyond CSX Transportation. Previously based in Richmond, Virginia after the merger, the corporation moved its headquarters to Jacksonville, Florida, in 2003. CSX is a Fortune 500 company. Subsidiaries and divisions CSX Transportation CSX Transportation is a Class I railroad operating in the eastern United States and the Canadian provinces of Ontario and Quebec. The railroad operates approximately 21,000 route miles (34,000 km) of track. As of December 30, 2016, CSX Transportation served population centers in 23 states east of the Mississippi River, the District of Columbia and the Canadian provinces of Ontario and Quebec. Also as of that date, it had access to over 70 ocean, river and lake port terminals along the Atlantic and Gulf Coasts, the Mississippi River, the Great Lakes and the St. Lawrence Seaway. Conrail Conrail was the primary Class I railroad in the Northeastern United States between 1976 and 1999. The trade name Conrail is a portmanteau based on the company's legal name (Consolidated Rail Corporation), and while it no longer operates trains it continues to do business as an asset management and network services provider in three Shared Assets Areas that were excluded from the division of its operations during its acquisition by CSX Corporation and the Norfolk Southern Railway. The federal government created Conrail to take over the lines of multiple bankrupt carriers, including the Penn Central Transportation Company and Erie Lackawanna Railway. After railroad regulations were lifted by the 4R Act and the Staggers Act, Conrail began to turn a profit in the 1980s and was privatized in 1987. The two remaining Class I railroads in the East, CSX Transportation and the Norfolk Southern Railway (NS), agreed in 1997 to acquire the system and split it into two roughly-equal parts (alongside three residual shared-assets areas), returning rail freight competition to the Northeast by essentially undoing the 1968 merger of the Pennsylvania Railroad and New York Central Railroad that created Penn