Chicago, Milwaukee & St. Paul Railway Company v. Minnesota, 134 U.S. 418 (1890), was a case in which the Supreme Court of the United States held that procedural due process limits state regulatory power over railroad rates. A regulatory agency in Minnesota had set railroad rates that the Minnesota Supreme Court had refused to overturn. When the Chicago, Milwaukee, St. Paul and Pacific Railroad appealed the case, the U.S. Supreme Court found that the rates were set without due process of law, specifically without an opportunity to challenge the equality and reasonableness of the charges. The Minnesota court had sanctioned rate-setting without any judicial hearing, requirement of notice or witnesses, "-in fact, nothing which has the semblance of due process of law".