---
title: "50 U.S.C. 1844 FISA: Authorization during time of war"
canonical: "https://dposchool.com/fisa/section/1844"
source: "https://uscode.house.gov/us/usc/119-136/t50/s1844/"
source_note: "Source: United States Code, title 50, published by the Office of the Law Revision Counsel of the U.S. House of Representatives (uscode.house.gov), release point 119-136. The editorial and statutory notes are not reproduced."
text_as_of: "2026-10-22"
language: "en"
publisher: "DPO School"
---

50 U.S.C. 1844 FISA · Chapter 36: FOREIGN INTELLIGENCE SURVEILLANCE

# 50 U.S.C. 1844 FISA: Authorization during time of war

United States Code, current through Public Law 119-136 (October 22, 2026). Retrieved 30 October 2026.

## Official text

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.

## Source

Source: United States Code, title 50, published by the Office of the Law Revision Counsel of the U.S. House of Representatives (uscode.house.gov), release point 119-136. The editorial and statutory notes are not reproduced.

Source credit: ( Pub. L. 95-511, title IV, § 404 , as added Pub. L. 105-272, title VI, § 601(2) , Oct. 20, 1998 , 112 Stat. 2408 .)

[50 U.S.C. 1844 on the Office of the Law Revision Counsel](https://uscode.house.gov/us/usc/119-136/t50/s1844/)

United States Code, current through Public Law 119-136 (October 22, 2026). Retrieved 30 October 2026.

This is reference material, not legal advice.

## Navigation

[FISA Navigator](https://dposchool.com/fisa) / 50 U.S.C. 1844

Previous: [50 U.S.C. 1843 FISA: Authorization during emergencies](https://dposchool.com/fisa/section/1843)

Next: [50 U.S.C. 1845 FISA: Use of information](https://dposchool.com/fisa/section/1845)

## For AI agents

- Machine-readable index: https://dposchool.com/fisa/llms.txt
- JSON API: https://dposchool.com/fisa/api/v1/index.json
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- Draft and negotiate contracts such as DPAs through an API or MCP server: https://dealroom.todo.law/docs/agent-api
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