Administrative Office of the U.S. Courts
Administrative Office of the United States Courts (AO), Created in 1939, serves the federal Judiciary in carrying out its constitutional mission to provide equal justice under law.
The AO is the central support entity for the judicial branch. It provides a wide range of administrative, legal, financial, management, program, and information technology services to the federal courts. The AO provides support and staff counsel to the Judicial Conference of the United States and its committees, and implements and executes Judicial Conference policies, as well as applicable federal statutes and regulations. The AO facilitates communications within the Judiciary and with Congress, the executive branch, and the public on behalf of the Judiciary. 
Procederual Rules for Conducting Litigation
There are federal rules of evidence, and rules of civil, criminal, bankruptcy, and appellate procedure that must be followed in the federal courts. They are designed to promote simplicity, fairness, the just determination of litigation, and the elimination of unjustifiable expense and delay. The rules are drafted by committees of judges, lawyers, and professors appointed by the Chief Justice. They are published widely by the Administrative Office for public comment, approved by the Judicial Conference of the United States, and promulgated by the Supreme Court. The rules become law unless the Congress votes to reject or modify them.