"In 2006, the Attorney General instructed the Director of the Executive Office for Immigration Review, in consultation with the Immigration Judges, to issue a practice manual for the parties who appear before the Immigration Courts. This directive arose out of the public's desire for greater uniformity in Immigration Court procedures and a call for the Immigration Courts to implement their 'best practices' nationwide. Accordingly, the Office of the Chief Immigration Judge published the Immigration Court Practice Manual in February 2008. The Practice Manual is a comprehensive guide that sets forth uniform procedures, recommendations, and requirements for practice before the Immigration Courts. The requirements set forth in this manual are binding on the parties who appear before the Immigration Courts, unless the Immigration Judge directs otherwise in a particular case. The Practice Manual does not limit the discretion of Immigration Judges to act in accordance with law and regulation. The Practice Manual is intended to be a 'living document,' and the Office of the Chief Immigration Judge updates it in response to changes in law and policy, as well as in response to comments by the parties using it."
United States. Dept. of Justice. Executive Office for Immigration Review: http://www.justice.gov/eoir/