The Rules Enabling Act (ch. 651, , ) is an Act of Congress that gave the judicial branch the power to promulgate the Federal Rules of Civil Procedure. Amendments to the Act allowed for the creation of the Federal Rules of Criminal Procedure and other procedural court rules. The creation and revision of rules pursuant to the Rules Enabling Act is usually carried out by the Judicial Conference of the United States, the policymaking body of the United States federal courts.