---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chXII/subchC/part1544"
level: "part"
label: "Part 1544"
heading: "Aircraft Operator Security: Air Carriers and Commercial Operators"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chXII-subchC-part1544"
sections_count: 37
---

# Part 1544 — Aircraft Operator Security: Air Carriers and Commercial Operators

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-part1544-subpartA.md)
- [Subpart B — Security Program](/cfr/49/subtB-chXII-subchC-part1544-subpartB.md)
- [Subpart C — Operations](/cfr/49/subtB-chXII-subchC-part1544-subpartC.md)
- [Subpart D — Threat and Threat Response](/cfr/49/subtB-chXII-subchC-part1544-subpartD.md)
- [Subpart E — Screener Qualifications When the Aircraft Operator Performs Screening](/cfr/49/subtB-chXII-subchC-part1544-subpartE.md)