SUBCHAPTER III—PEN REGISTERS AND TRAP AND TRACE DEVICES FOR FOREIGN INTELLIGENCE PURPOSES (§§ 1841—1846)
- § 1841. Definitions
- § 1842. Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations
- § 1843. Authorization during emergencies
- § 1844. Authorization during time of war
- § 1845. Use of information
- § 1846. Congressional oversight