 What is today the Fredericksburg Line was originally part of the Richmond, Fredericksburg & Potomac Railroad (or RF&P), a connector railroad between the Pennsylvania and Baltimore and Ohio Railroads in Washington, D.C., and the Seaboard Air Line and Atlantic Coast Line Railroads in Richmond.In 1991 CSX absorbed the RF&P and the line is now their RF&P Subdivision.In 1992 Virginia Railway Express (or VRE) was formed to serve the former RF&P between Washington's Union Station and Fredericksburg, VA as well as stations between Washington and Manassas, VA on Norfolk Southern's Piedmont Division.