American Bar Association 2007 Model Code of Judicial Conduct
RULE 2.11 Disqualification
(A) A judge shall disqualify himself or herself in any proceeding in which the judge's impartiality might reasonably be questioned, including but not limited to the following circumstances:
(1) The judge has a personal bias or prejudice concerning a party or a party's lawyer, or personal knowledge of facts that are in dispute in the proceeding.
(2) The judge knows that the judge, the judge's spouse or domestic partner, or a person within the third degree of relationship to either of them, or the spouse or domestic partner of such a person is:
(a) a party to the proceeding, or an officer, director, general partner, managing member, or trustee of a party;
(b) acting as a lawyer in the proceeding;
(c) a person who has more than a de minimis interest that could be substantially affected by the proceeding; or
(d) likely to be a material witness in the proceeding.
(3) The judge knows that he or she, individually or as a fiduciary, or the judge's spouse, domestic partner, parent, or child, or any other member of the judge's family residing in the judge's household, has an economic interest in the subject matter in controversy or is a party to the proceeding.
(4) The judge knows or learns by means of a timely motion that a party, a parry's lawyer, or the law firm of a party's lawyer has within the previous [insert number] yearfs] made aggregate contributions to the judge's campaign in an amount that is greater than $ [insert amount] for an individual or $ [insert amount] for an entity [is reasonable and appropriate for an individual or an entity].
(5) The judge, while a judge or a judicial candidate, has made a public statement, other than in a court proceeding, judicial decision, or opinion, that commits or appears to commit the judge to reach a particular result or rule in a particular way in the proceeding or controversy.
(6) The judge:
(a) served as a lawyer in the matter in controversy, or was associated with a lawyer who participated substantially as a lawyer in the matter during such association;
(b) served in governmental employment, and in such capacity participated personally and substantially as a lawyer or public official concerning the proceeding, or has publicly expressed in such capacity an opinion concerning the merits of the particular matter in controversy;
(c) was a material witness concerning the matter; or
(d) previously presided as a judge over the matter in another court.
(B) A judge shall keep informed about the judge's personal and fiduciary economic interests, and make a reasonable effort to keep informed about the personal economic interests of the judge's spouse or domestic partner and minor children residing in the judge's household.
(C) A judge subject to disqualification under this Rule, other than for bias or prejudice under paragraph (A)(1), may disclose on the record the basis of the judge's disqualification and may ask the parties and their lawyers to consider, outside the presence of the judge and court personnel, whether to waive disqualification. If, following the disclosure, the parties and lawyers agree, without participation by the judge or court personnel, that the judge should not be disqualified, the judge may participate in the proceeding. The agreement shall be incorporated into the record of the proceeding.
 Under this Rule, a judge is disqualified whenever the judge's impartiality might reasonably be questioned, regardless of whether any of the specific provisions of paragraphs (A) (1) through (6) apply. In many jurisdictions, the term "recusal" is used interchangeably with the term "disqualification."
 A judge's obligation not to hear or decide matters in which disqualification is required applies regardless of whether a motion to disqualify is filed.
 The rule of necessity may override the rule of disqualification. …