The Belt Railway of Chicago is the largest intermediate switching railroad in the United States. Formed in 1882, it is owned by 6 major railroads - BNSF, Canadian National, Canadian Pacific, CSX, Norfolk Southern and Union Pacific. It has 28 miles of mainline track and over 300 miles of switching tracks. For sale is a "Book of Rules" that apply to workers on the Chicago Belt. It measures appx 6 1/2 x 4 inches, contains 71 pages, has a pressboard cover and mid-grade paper content pages. The book details general rules, operating rules, block signal rules and interlocking rules. It also covers radio rules and safety rules.