Ethics Manual: For Members of the Board of Immigration Appeals, Immigration Judges, and Administrative Law Judges Employed by the Executive Office for Immigration Review [open pdf - 1MB]
"This Manual is divided into four parts. Part one consists of the Ethics Handbook for Immigration Judges. Members of the Board of Immigration Appeals. and Administrative Law Judges Employed by the Executive Office for Immigration Review [EOIR]. Part two contains the Standards of Conduct for Executive Branch Employees and the Supplemental Standards of Conduct for Department of Justice Employees. Part three provides various Departmental memoranda and orders which bear on ethical considerations EOIR Judges may encounter. Part four is a reproduction of the American Bar Association (ABA) Model Code of Judicial Conduct."
United States. Dept. of Justice. Executive Office for Immigration Review: http://www.justice.gov/eoir/