The Belt Railway Company of Chicago (reporting mark BRC), headquartered in Bedford Park, Illinois, is the largest switching terminal railroad in the United States.

It is co-owned by the six Class I railroads of the United States — BNSF, Canadian National, CPKC (the BRC's north–south main line's northern terminus is, like the Indiana Harbor Belt, the Milwaukee District West Line in Chicago's Cragin neighborhood), CSX, Norfolk Southern and Union Pacific — each of which uses the switching and interchange facilities of the BRC.

[1] The Clearing Yard, located on the boundary between Chicago and Bedford Park, Illinois, just south of Chicago Midway International Airport directly adjacent to CSX Intermodal's Bedford Park terminal, is one of the largest hump classification facilities in the United States.

[1] It has six main subdivisions; one arrival, classification, and departure yard in the eastbound and westbound directions.

Using computer controls, the hump tower efficiently dispatches more than 8,400 rail cars per day.