U.S. Code » Title 50 » Chapter CHAPTER 36— FOREIGN INTELLIGENCE SURVEILLANCE › Subchapter SUBCHAPTER III— PEN REGISTERS AND TRAP AND TRACE DEVICES FOR FOREIGN INTELLIGENCE PURPOSES

50 U.S.C. § 1844

Authorization during time of war

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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.