14 CFR § 5.51 - Applicability.

---
identifier: "/us/cfr/t14/s5.51"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 5.51 - Applicability."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "5.51"
section_name: "Applicability."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "A"
subchapter_name: "DEFINITIONS AND GENERAL REQUIREMENTS"
part_number: "5"
part_name: "SAFETY MANAGEMENT SYSTEMS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 106(f), 106(g), 40101, 40113, 40119, 41706, 44101, 44701-44702, 44705, 44709-44711, 44713, 44716-44717, 44722, 46105; Sec. 102, Pub. L. 116-260, 134 Stat. 2309; Sec 215, Pub. L. 111-216, 124 Stat. 2366."
regulatory_source: "Doc. No. FAA-2009-0671, Amdt. 5-1, 80 FR 1326, Jan. 8, 2015, unless otherwise noted."
cfr_part: "5"
---


# 5.51 Applicability.

Any person required to have an SMS under this part must apply safety risk management to the following:

(a) Implementation of new systems.

(b) Revision of existing systems.

(c) Development of operational procedures.

(d) Identification of hazards or ineffective risk controls through the safety assurance processes in subpart D of this part.

[Doc. No. FAA-2009-0671, Amdt. 5-1, 80 FR 1326, Jan. 8, 2015, as amended by Amdt. 5-2, 89 FR 33107, Apr. 26, 2024]