---
title: "66.B.15 Information security management system — Part-66 · Avioverse"
description: "The competent authority shall establish, implement and maintain an information security management system in accordance with Annex I (Part-IS.AR) to…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/section-b-procedures-for-competent-authorities/66-b-15"
---

# 66.B.15 Information security management system

Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IR Implementing rule

## 66.B.15 Information security management system

The competent authority shall establish, implement and maintain an information security management system in accordance with Annex I (Part-IS.AR) to Implementing Regulation (EU) 2023/203 in order to ensure the proper management of information security risks which may have an impact on aviation safety.

\[Applicable from 22 February 2026 – Regulation (EU) 2023/203]

IR · 66.B.15 — Regulation (EU) No 1321/2014 · Regulation (EU) 2023/203 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — PROCEDURES FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/section-b-procedures-for-competent-authorities)

Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.