50 U.S. Code § 1811 - Authorization during time of war

Notwithstanding any other law, the President, through the Attorney General, may authorize electronic surveillance without a court order under this subchapter to acquire foreign intelligence information for a period not to exceed fifteen calendar days following a declaration of war by the Congress.

(Pub. L. 95–511, title I, § 111, Oct. 25, 1978, 92 Stat. 1796.)