U.S.C. Title 50 - WAR AND NATIONAL DEFENSE 50 U.S.C. United States Code, 2023 Edition Title 50 - WAR AND NATIONAL DEFENSE CHAPTER 36 - FOREIGN INTELLIGENCE SURVEILLANCE SUBCHAPTER III - PEN REGISTERS AND TRAP AND TRACE DEVICES FOR FOREIGN INTELLIGENCE PURPOSES Sec. 1844 - Authorization during time of war From the U.S. Government Publishing Office, www.gpo.gov
§1844. Authorization during time of war
Notwithstanding any other provision of law, the President, through the Attorney General, may authorize the use of a pen register or trap and trace device without a court order under this subchapter to acquire foreign intelligence information for a period not to exceed 15 calendar days following a declaration of war by Congress.
(Pub. L. 95–511, title IV, §404, as added Pub. L. 105–272, title VI, §601(2), Oct. 20, 1998, 112 Stat. 2408.)