Title 50 › Chapter 36— FOREIGN INTELLIGENCE SURVEILLANCE › Subchapter III— PEN REGISTERS AND TRAP AND TRACE DEVICES FOR FOREIGN INTELLIGENCE PURPOSES › § 1841
Defines key words used in this part of the law. The terms below use the meanings in section 1801: foreign power — a foreign government or group; agent of a foreign power — someone working for or on behalf of a foreign power; international terrorism — violent or dangerous acts tied to foreign-related groups or goals; foreign intelligence information — information about foreign governments or activities; Attorney General — the U.S. Attorney General; United States person — a U.S. citizen, lawful resident, or domestic organization; United States — the country and its jurisdiction; person — an individual or organization; State — a U.S. state or similar entity. The words pen register and trap and trace use the meanings in 18 U.S.C. 3127. An aggrieved person is anyone whose phone line or communication device was subject to an authorized pen register or trap and trace, including when incoming signals were captured. A specific selection term is a precise identifier (like a person, account, address, or device) used to narrow data collection as much as reasonably possible; it does not include broad identifiers such as a provider name or a large geographic area unless used as part of a specific identifier, and multiple specific terms can be combined.
Full Legal Text
War and National Defense — Source: USLM XML via OLRC
Legislative History
Reference
Citation
50 U.S.C. § 1841
Title 50 — War and National Defense
Last Updated
Apr 5, 2026
Release point: 119-73not60