The Judicial Code (28 U.S.C. § 751) provides that the clerk is appointed, and may be removed, by the court. The clerk's duties are prescribed by the statute, by the court's customs and practices, and by policy established by the Judicial Conference of the United States. The clerk is appointed by order of the court en banc to serve the entire court. The role of the clerk and deputies or assistants should not be confused with the court's law clerks, who assist the judges by conducting research and preparing drafts of opinions.