---
title: "CAO.A.035 Personnel requirements — Part-CAO · Avioverse"
description: "The CAO shall appoint an accountable manager, who shall have an authority for ensuring that all activities of the organisation can be financed so that…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-a-organisation-requirements/cao-a-035"
---

# CAO.A.035 Personnel requirements

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

IR Implementing rule

## CAO.A.035 Personnel requirements

(a) The CAO shall appoint an accountable manager, who shall have an authority for ensuring that all activities of the [organisation](https://avioverse.aero/glossary/easa/organisation) can be financed so that those activities are carried out in accordance with the requirements of this Annex.

(b) The accountable manager shall nominate a person or group of persons who shall be responsible for ensuring that the CAO is always in compliance with the requirements of this Annex. Those person(s) shall ultimately be responsible to the accountable manager.

(c) All persons referred to in point (b) shall have the relevant knowledge, background and experience related to [continuing airworthiness](https://avioverse.aero/glossary/easa/continuing-airworthiness) management or [maintenance](https://avioverse.aero/glossary/easa/maintenance), as appropriate for their functions.

(d) The CAO shall have sufficient appropriately qualified staff for it to be able to carry out the planned work. The CAO shall be entitled to use temporarily subcontracted staff.

(e) The CAO shall assess and record the qualification of all personnel.

(f) Personnel who carry out specialised tasks, such as welding, or non-destructive testing (‘NDT’) inspection other than colour contrast inspections shall be qualified in accordance with an officially-recognised standard

IR · CAO.A.035 — Regulation (EU) No 1321/2014 · Regulation (EU) 2019/1383 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC1 CAO.A.035(c) Personnel requirements

KNOWLEDGE, BACKGROUND AND EXPERIENCE OF NOMINATED PERSON(S)

Persons or group of persons nominated in accordance with point CAO.A.035(b) should have:

(a) practical experience and expertise in the application of aviation safety standards and safe operating practices;

(b) comprehensive knowledge of:

(1) Part-M, Part-ML and any associated requirements and procedures; and

(2) the CAE;

(c) 5 years aviation experience of which at least 2 years should be from the aeronautical industry in an appropriate position;

(d) knowledge of a relevant sample of the type(s) of [aircraft](https://avioverse.aero/glossary/easa/aircraft) or components that are within the scope of work. This knowledge may be demonstrated by documented evidence or by an assessment performed by the competent authority.

Training courses, when used as documented evidence, should be as a minimum at a level equivalent to Part-66 Appendix III Level 1 General Familiarisation, and could be provided by a Part-147 [organisation](https://avioverse.aero/glossary/easa/organisation), by the manufacturer or by any other organisation accepted by the competent authority; and

(e) knowledge of:

(1) [maintenance](https://avioverse.aero/glossary/easa/maintenance) standards (including human factor principles); and

(2) quality system (or organisational review).

AMC · AMC1 CAO.A.035(c) — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC1 CAO.A.035(e) Personnel requirements

QUALIFICATION ASSESSMENT

(a) Personnel involved in [maintenance](https://avioverse.aero/glossary/easa/maintenance) and [continuing airworthiness](https://avioverse.aero/glossary/easa/continuing-airworthiness) management should be assessed for competence by ‘on-the-job’ evaluation and/or by examination relevant to their particular job role within the [organisation](https://avioverse.aero/glossary/easa/organisation) before unsupervised work is permitted.

(b) Adequate initial and recurrent training should be provided and recorded to ensure continued competence.

AMC · AMC1 CAO.A.035(e) — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION A — ORGANISATION REQUIREMENTS](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-a-organisation-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.