---
title: "66.1 Competent authority — Part-66 · Avioverse"
description: "For the purpose of this Annex (Part-66), the competent authority shall be:"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/general/66-1"
---

# 66.1 Competent authority

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

IR Implementing rule

## 66.1 Competent authority

(a) For the purpose of this Annex (Part-66), the competent authority shall be:

1\. the authority designated by the Member State to whom a person first applies for the issuance of an [aircraft](https://avioverse.aero/glossary/easa/aircraft) [maintenance](https://avioverse.aero/glossary/easa/maintenance) licence; or

2\. the authority designated by another Member State, in case it would be different, subject to agreement with the authority referred to in point 1. In that case, the licence referred to in point 1 shall be revoked, all the records mentioned in point 66.B.20 shall be transferred and a new licence shall be issued on the basis of these records.

(b) The Agency shall be responsible for:

1\. defining the list of aircraft types;

2\. defining what airframe/engine (or powerplant) combinations are included in each particular aircraft type rating;

3\. in respect of an aircraft that is not covered by any licence (sub)category in point 66.A.3, point (a), defining the applicable licence (sub)category(ies) that entitle(s) the holder of the licence to exercise the privileges of point 66.A.20 on that aircraft.

IR · 66.1 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC1 66.1(a) Competent Authority

A competent authority may be a ministry, a national aviation authority, or any aviation body designated by the Member State and located within that Member State. A Member State may designate more than one competent authority to cover different areas of responsibility, as long as the designation decision contains a list of the competencies of each authority and there is only one competent authority responsible for each given area of responsibility.

The purpose of 66.1(a)2 is to allow the possibility for a person who already holds a Part-66 licence issued by one Member State (i.e. Member State X) to replace it by a Part-66 licence issued by another Member State (i.e. Member State Y).

AMC · AMC1 66.1(a) — Regulation (EU) No 1321/2014 · ED Decision 2023/019/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in GENERAL](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/general)

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.