---
kind: "unit"
title: "50"
title_heading: "War and National Defense"
key: "ch36/schII"
level: "subchapter"
label: "Subchapter II"
heading: "Physical Searches"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/50/ch36-schII"
sections_count: 9
---

# Subchapter II — Physical Searches

Title 50 — War and National Defense › Chapter 36 — Foreign Intelligence Surveillance

## Sections

- [§1821. Definitions](/usc/50/1821.md)
- [§1822. Authorization of physical searches for foreign intelligence purposes](/usc/50/1822.md)
- [§1823. Application for order](/usc/50/1823.md)
- [§1824. Issuance of order](/usc/50/1824.md)
- [§1825. Use of information](/usc/50/1825.md)
- [§1826. Congressional oversight](/usc/50/1826.md)
- [§1827. Penalties](/usc/50/1827.md)
- [§1828. Civil liability](/usc/50/1828.md)
- [§1829. Authorization during time of war](/usc/50/1829.md)