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Southern Pacific Co. v. Arizona - The Arizona Train Limit Law, Appeal To The U.s. Supreme Court, The Commerce Clause

appellant appellee decision inc


Southern Pacific Company


State of Arizona

Appellant's Claim

That the Arizona Supreme Court erred in its ruling that the state's Train Limit Law was constitutional.

Chief Lawyer for Appellant

Burton Mason

Chief Lawyer for Appellee

Harold N. McLaughlin

Justices for the Court

Felix Frankfurter, Robert H. Jackson, Frank Murphy, Stanley Forman Reed, Owen Josephus Roberts, Wiley Blount Rutledge, Harlan Fiske Stone (writing for the Court)

Justices Dissenting

Hugo Lafayette Black, William O. Douglas


Washington, D.C.

Date of Decision

18 June 1945


In favor of appellant, invalidating the Train Limit Law.


The Court ruled that state regulations which burden interstate commerce are unconstitutional.

Related Cases

  • Leisy v. Hardin, 135 U.S. 100 (1890).
  • Baldwin v. G. A. F. Seelig, Inc., 294 U.S. 511 (1935).
  • South Carolina State Highway Dept. v. Barnwell Brothers, Inc., 303 U.S. 177 (1938).


West's Encyclopedia of American Law. St. Paul, MN: West Group, 1998.

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