---
title: "CAO.B.017 Means of compliance — Part-CAO · Avioverse"
description: "The Agency shall develop Acceptable Means of Compliance (‘AMC’) that may be used to demonstrate compliance with Regulation (EU) 2018/1139 and its…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-b-authority-requirements/cao-b-017"
---

# CAO.B.017 Means of compliance

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

IR Implementing rule

## CAO.B.017 Means of compliance

(a) The Agency shall develop Acceptable Means of Compliance (‘AMC’) that may be used to demonstrate compliance with Regulation (EU) 2018/1139 and its delegated and implementing acts.

(b) Alternative means of compliance may be used to demonstrate compliance with Regulation (EU) 2018/1139 and its delegated and implementing acts

(c) The competent authority shall establish a system to consistently evaluate that all alternative means of compliance used by organisations under its oversight allow for the establishment of compliance with Regulation (EU) No 2018/1139 and its delegated and implementing acts.

(d) The competent authority shall evaluate all alternative means of compliance proposed by an [organisation](https://avioverse.aero/glossary/easa/organisation) in accordance with point CAO.A.017 by analysing the documentation provided and, if considered necessary, conducting an inspection of the organisation.

When the competent authority finds that the alternative means of compliance are in accordance with Regulation (EU) 2018/1139 and its delegated and implementing acts, it shall without undue delay:

(1) notify the applicant that the alternative means of compliance may be used and, if applicable, amend the approval or certificate of the applicant accordingly;

(2) notify the Agency of their content, including copies of all relevant documentation.

IR · CAO.B.017 — Regulation (EU) No 1321/2014 · Regulation (EU) 2019/1383 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

GM Guidance material

## GM1 CAO.B.017 Means of compliance

ALTERNATIVE MEANS OF COMPLIANCE

Alternative means of compliance that are used by a CAO, may be used by another CAO only if they are processed again in accordance with point CAO.B.017(d).

GM · GM1 CAO.B.017 — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — AUTHORITY REQUIREMENTS](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-b-authority-requirements)

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.