1 CSX Transportation Inc., operates the largest railroad in the eastern United States with a 22,000-mile rail network linking commercial markets in 23 states, the District of Columbia, and two Canadian provinces.  UP - Union Pacific Railroad. Union Pacific Railroad is an operating subsidiary of Union Pacific Corporation. It is the largest railroad in North America, operating in the western two-thirds of the United States.
Chief Justice John G. Roberts, Jr., is the 17th Chief Justice of the United States; he has been the incumbent since 2005. All federal court judges, including Supreme Court Jus â¦ tices, are commission for lifetime appointments. The average tenure on the bench is 25.5 years.
The Chief Justice is one of nine Supreme Court justices; the other eight are the Associate Justices of the Supreme Court of the United States. From 1789 until 1866, the office was known as the Chief Justice of the Supreme Court.owever, 28 U.S.C. Â§ 1 specifies that the title is Chief Justice of the United States. The title was changed from Chief Justice of the Supreme Court by Congress in 1866 at the suggestion of the sixth Chief Justice, Salmon P. Chase. Chase wished to emphasize the Supreme Court's role as a co-equal branch of government.