[United States Senate Manual, 104th Congress]
[S. Doc. 104-1]
[Standing Rules of the Senate]
[Page 20]
[From the U.S. Government Publishing Office, www.gpo.gov]

        21                            RULE XXI

                              SESSION WITH CLOSED DOORS

      21.1      1. On a motion made and seconded to close the doors of 
            the Senate, on the discussion of any business which may, in 
            the opinion of a Senator, require secrecy, the Presiding 
            Officer shall direct the galleries to be cleared; and during 
            the discussion of such motion the doors shall remain closed.
      21.2      2. When the Senate meets in closed session, any 
            applicable provisions of rules XXIX and XXXI, including the 
            confidentiality of information shall apply to any 
            information and to the conduct of any debate transacted.