---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chXII/subchC/part1540"
level: "part"
label: "Part 1540"
heading: "Civil Aviation Security: General Rules"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chXII-subchC-part1540"
sections_count: 20
---

# Part 1540 — Civil Aviation Security: General Rules

Title 49 C.F.R. — Transportation › Subtitle B — Other Regulations Relating to Transportation › Chapter XII — Transportation Security Administration, Department of Homeland Security › Subchapter C — Civil Aviation Security

## Contents

- [Subpart A — General](/cfr/49/subtB-chXII-subchC-part1540-subpartA.md)
- [Subpart B — Responsibilities of Passengers and Other Individuals and Persons](/cfr/49/subtB-chXII-subchC-part1540-subpartB.md)
- [Subpart C — Security Threat Assessments](/cfr/49/subtB-chXII-subchC-part1540-subpartC.md)
- [Subpart D — Responsibilities of Holders of TSA-Approved Security Programs](/cfr/49/subtB-chXII-subchC-part1540-subpartD.md)