In the United States, the Congressional Directory is the official directory of the Congress. The Joint Committee on Printing is responsible for preparing the Congressional Directory.
The Official Congressional Directory has been published by the United States Government Printing Office since 1888. It is published and distributed biannually during the first session of each new Congress.
The publication includes a short biography of each member of the U.S. Senate and House, listed by state or district. It also lists administrative assistants, committee memberships, room and telephone numbers, secretaries, and length and terms of service for members of Congress.
Also referenced are military establishments, officials of the courts and other departments of the federal government. These would include District of Columbia officials, foreign diplomats and governors of states and territories. Members of the press, radio and television galleries are also mentioned in the Congressional Directory.