Judicial disqualification, also referred to as recusal, is the act of abstaining from participation in an official action such as a legal proceeding due to a conflict of interest of the presiding court official or administrative officer. Applicable statutes or canons of ethics may provide standards for recusal in a given proceeding or matter. Providing that the judge or presiding officer must be free from disabling conflicts of interest makes the fairness of the proceedings less likely to be questioned. Recusal in the United States In the United States, the term "recusal" is used most often with respect to court proceedings. Two sections of Title 28 of the United States Code (the Judicial Code) provide standards for judicial disqualification or recusal. Section 455, captioned "Disqualification of justice, judge, or magistrate judge", provides that a federal judge "shall disqualify himself in any proceeding in which his impartiality might reasonably be questioned". The section also provides that a judge is disqualified "where he has a personal bias or prejudice concerning a party, or personal knowledge of disputed evidentiary facts concerning the proceeding"; when the judge has previously served as a lawyer or witness concerning the same case or has expressed an opinions concerning its outcome; or when the judge or a member of his or her immediate family has a financial interest in the outcome of the proceeding. 28 U.S.C. Section 144, captioned "Bias or prejudice of judge", provides that under circumstances, when a party to a case in a United States District Court files a "timely and sufficient motion that the judge before whom the matter is pending has a personal bias or prejudice either against him or in favor of an adverse party", the case shall be transferred to another judge. The general rule is that, to warrant recusal, a judge's expression of an opinion about the merits of a case, or his familiarity with the facts or the parties, must have originated in a source outside the case itself. This is referred to in the United States as the "extra-judicial source rule" and was recognized as a general presumption, although not an invariable one, in the 1994 U.S. Supreme Court decision in Liteky v. United States. At times justices or judges will recuse themselves sua sponte (on their own motion), recognizing that facts leading to their disqualification are present. However, where such facts exist, a party to the case