Within one hundred and twenty days of the date of the enactment of this Act, the Chief Justice of the United States, in consultation with the Attorney General, the Director of National Intelligence, and the Secretary of Defense, shall prescribe rules establishing procedures for the protection against unauthorized disclosure of any classified information in the custody of the United States district courts, courts of appeal, or Supreme Court. Such rules, and any changes in such rules, shall be submitted to the appropriate committees of Congress and shall become effective forty-five days after such submission.

Until such time as rules under subsection (a) first become effective, the Federal courts shall in each case involving classified information adapt procedures to protect against the unauthorized disclosure of such information.