From Wikipedia, the free encyclopedia

The congressional office buildings are the office buildings used by the United States Congress to augment the limited space in the United States Capitol. The congressional office buildings are part of the Capitol complex are thus under the authority of the Architect of the Capitol and protected by the United States Capitol Police. The office buildings house the individual offices of each U.S. Representative and Senator as well as committee hearing rooms, staff rooms, multiple cafeterias, and areas for support, committee, and maintenance staff. The congressional office buildings are connected the Capitol by means of several underground trains–the Capitol Subway System.

The three Senate office buildings are along Constitution Avenue north of the Capitol:

• Russell Senate Office Building (RSOB, completed 1908)
• Dirksen Senate Office Building (DSOB, completed 1958)
• Hart Senate Office Building (HSOB, completed 1982)

The three House office buildings are along Independence Avenue south of the Capitol:

• Cannon House Office Building (CHOB, completed 1908)
• Longworth House Office Building (LHOB, completed 1933)
• Rayburn House Office Building (RHOB, completed 1965)

A fourth building, the Ford House Office Building, which used to house the FBI's fingerprint records, sits a few blocks southwest of the others.

v • d • e United States Congress House of Representatives, Senate — 110th Congress
Members	Current, Freshmen – House: Current by seniority, Former members | Senate: Current by age, Current by seniority; Former, Former still living, Expelled/censured, Longest serving, Classes
Leaders	House: Speaker, Party leaders, Party whips, Dem. caucus, Rep. conference, Dean | Senate: President pro tempore (list), Party leaders, Assistant party leaders, Dem. Caucus (Chair, Secretary, Policy comm. chair), Rep. Conference (Chair, Vice-Chair, Policy comm. chair), Dean
Groups	African Americans, Asian Pacific Americans, Caucuses, Committees, Demographics, Hispanic Americans, Senate Women, House Women
Agencies, Employees & Offices	Architect of the Capitol, Capitol Guide Service (board), Capitol Police (board), Chiefs of Staff, GAO, Government Printing Office, Law Revision Counsel, Librarian of Congress, Poet laureate | House: Chaplain, Chief Administrative Officer, Clerk, Doorkeeper, Emergency Planning, Preparedness, and Operations, Historian, Page (board), Parliamentarian, Postmaster, Reading clerk, Recording Studio, Sergeant at Arms | Senate: Chaplain, Curator, Historian, Librarian, Page, Parliamentarian, Secretary, Sergeant at Arms
Politics & Procedure	Act of Congress (list), Caucuses, Committees, Hearings, Joint session, Oversight, Party Divisions, Rider | House: Committees, History, Procedures | Senate: Committees, Filibuster, History, Jefferson's Manual, Traditions, VPs' tie-breaking votes
Buildings	Botanic Garden, Capitol, Capitol Complex, Office buildings (House: Cannon, Ford, Longworth, O'Neill, Rayburn, Senate: Dirksen, Hart, Russell)
Research	Biographical directory, Congressional Quarterly, Congressional Record, Congressional Research Service, Library of Congress, The Hill, Roll Call, THOMAS
Misc	List of lists, Congressional districts (by area), Mace of the House, Power of enforcement, Scandals, Softball League
Websites: House of Representatives | Senate