---
title: "ML.B.901 Airworthiness review certificate issued by the competent authority — Part-ML · Avioverse"
description: "The competent authority shall issue an ARC using the template in Appendix IV (EASA Form 15c) in one of the following cases:"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-b-procedure-for-competent-authorities/ml-b-901"
---

# ML.B.901 Airworthiness review certificate issued by the competent authority

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

IR Implementing rule

## ML.B.901 Airworthiness review certificate issued by the competent authority

(a) The competent authority shall issue an ARC using the template in Appendix IV (EASA Form 15c) in one of the following cases:

(1) after a satisfactory completion of the airworthiness review by that competent authority in accordance with point ML.A.903;

(2) in the case of a new [aircraft](https://avioverse.aero/glossary/easa/aircraft).

(b) The competent authority shall carry out the airworthiness review in accordance with point ML.A.903 whenever circumstances reveal the existence of a potential safety threat.

(c) The competent authority shall have appropriate airworthiness review staff to carry out the airworthiness reviews. Such staff shall have:

(1) acquired at least 3 years of experience in [continuing airworthiness](https://avioverse.aero/glossary/easa/continuing-airworthiness);

(2) acquired either an appropriate licence in compliance with Annex III (Part-66), or an aeronautical degree or national equivalent;

(3) received appropriate aeronautical [maintenance](https://avioverse.aero/glossary/easa/maintenance) training.

The requirement laid down in the first paragraph, point (2), may be replaced by 4 years of experience in continuing airworthiness additional to those already required by the first paragraph, point (1).

IR · ML.B.901 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — PROCEDURE FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-b-procedure-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.