EASA Part-M training in 2026: what each organisation must train

What is EASA Part-M training today?

There is no single “Part-M training” course, and since 24 March 2022 there is no Part-M organisation approval to train for either: Article 4 of Regulation (EU) No 1321/2014 ended every Part-M Subpart F (maintenance) and Subpart G (continuing airworthiness management) approval on that date. What remains is Part-M itself — Annex I, the continuing airworthiness requirements for the aircraft — and three kinds of approved organisation that apply it: Part-CAMO, Part-CAO and Part-145. Each carries its own training duty in its own clause. This guide quotes each one, so you can see which applies to the organisation you work for and what a course has to cover to serve it. For the Part-145 duties in full, see our guide to Part-145 training requirements.

Part-M training at a glance

Organisation	Training duty in the rule text	Human factors	Clause
Part-CAMO	Competency must include safety management and human factors principles	In the rule	CAMO.A.305(g)
Part-CAO	Assess and record the qualification of all personnel	Only in the AMC for nominated persons	CAO.A.035(e), AMC1 CAO.A.035(c)
Part-145	Competency must include safety management principles, including human factors	In the rule	145.A.30(e)
Part-M Subpart F (expired 24 March 2022)	Qualification demonstrated and recorded	Not mentioned	M.A.606(e)

What happened to Part-M Subpart F and Subpart G?

Regulation (EU) 2019/1383 moved organisation approvals out of Part-M and into two new Annexes: Annex Vc (Part-CAMO) and Annex Vd (Part-CAO). The transition is written into Article 4 of the cover regulation:

“By way of derogation from paragraph 1, until 24 September 2020 organisations may, upon their request, be issued approvals by the competent authority in accordance with Subpart F and Subpart G of Annex I (Part-M). All approvals issued in accordance with Subpart F and Subpart G of Annex I (Part-M) shall be valid until 24 March 2022.” — Article 4(2), Regulation (EU) No 1321/2014

The same Article gave existing holders a route across:

“Organisations that hold a valid organisation approval certificate issued in accordance with Subpart F or Subpart G of Annex I (Part-M) or with Annex II (Part-145) shall, upon their request, be issued by the competent authority a Form 3-CAO as set out in Appendix I to Annex Vd (Part-CAO) and thereafter be overseen by the competent authority in accordance with Annex Vd (Part-CAO).” — Article 4(4)

An organisation that held a Subpart F or Subpart G approval and kept operating after 24 March 2022 therefore does so today under a Part-145, Part-CAMO or Part-CAO approval. The Subpart F text is still printed in the EASA Easy Access Rules, and the term “Part-M training” is still in use. When you meet it, the first question is which approval the organisation holds now.

What training does a Part-CAMO owe?

Part-CAMO puts the duty in rule text, not only in guidance:

“In addition to the necessary expertise related to the job function, competency must include an understanding of safety management and human factors principles appropriate to the person’s function and responsibilities in the organisation.” — CAMO.A.305(g)

AMC3 CAMO.A.305(g) then sets out who receives initial and continuation safety training, and GM2 CAMO.A.305(g) gives the syllabus. The top-level topics are the same as the Part-145 syllabus in GM1 145.A.30(e). Our guide Does a CAMO need safety training? walks the population, the syllabus and the two-year continuation cycle clause by clause.

What training does a Part-CAO owe?

Part-CAO covers organisations that maintain and manage aircraft outside the complex and licensed-carrier fleet. Its scope point reads:

“This Annex establishes the requirements to be met by a combined airworthiness organisation (CAO) in order to be issued, upon application, an approval for the maintenance and continuing airworthiness management of aircraft and components for installation thereon, and to continue carrying out those activities, where such aircraft are not classified as complex motor-powered aircraft and are not listed in the air operator certificate of an air carrier licensed in accordance with Regulation (EC) No 1008/2008.” — CAO.A.010

The personnel duty is short:

“The CAO shall assess and record the qualification of all personnel.” — CAO.A.035(e)

The AMC fills in how:

“(a) Personnel involved in maintenance and 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 before unsupervised work is permitted.

(b) Adequate initial and recurrent training should be provided and recorded to ensure continued competence.” — AMC1 CAO.A.035(e)

Two things stand out against Part-145 and Part-CAMO. First, the Part-CAO requirements for organisations contain no rule-text duty on safety management or human factors; the only reference to human factors is in the AMC for nominated persons:

“(e) knowledge of: (1) maintenance standards (including human factor principles); and (2) quality system (or organisational review).” — AMC1 CAO.A.035(c)

Second, there is no fixed cycle. The AMC asks for training that keeps competence current and a record that proves it, and leaves the content and interval to the organisation’s procedures in its combined airworthiness exposition. A CAO that chooses human factors training for its wider staff does so as its own means of meeting CAO.A.035(e), not because a clause names it.

What did Part-M Subpart F say, and why does it still matter?

Manuals written before 2022 cite M.A.606, and procedures carried across from them can still quote it. The personnel duty was:

“The qualification of all personnel involved in maintenance and airworthiness reviews shall be demonstrated and recorded.” — M.A.606(e)

Its AMC used the same two-step pattern that Part-CAO later adopted:

“1. Personnel involved in maintenance should be assessed for competence by ‘on the job’ evaluation and/or by examination relevant to their particular job role within the organisation before unsupervised work is permitted.

2. Adequate initial and recurrent training should be provided and recorded to ensure continued competence.” — AMC M.A.606(e)

The Subpart F points and their AMC, M.A.601 to M.A.619, contain no reference to human factors at all. If your training file still cites M.A.606, it is worth checking which approval the organisation holds today and updating the clause references to CAO.A.035 or 145.A.30(e), whichever applies.

What Part-M knowledge must nominated persons show?

The knowledge expectation for post-holders is where Part-M content itself is named. For a Part-CAO:

“(b) comprehensive knowledge of: (1) Part-M, Part-ML and any associated requirements and procedures; and (2) the CAE;” — AMC1 CAO.A.035(c)

AMC M.A.606(c) set the same expectation for Subpart F nominated persons, with the maintenance organisation manual in place of the CAE. This is the one place where “Part-M training” means what the phrase suggests: structured knowledge of the continuing airworthiness rules themselves — maintenance programmes, airworthiness reviews, the Annexes and how they relate — for the people answerable to the accountable manager.

How does this compare with Part-145?

A Part-145 organisation carries the heaviest set of named duties: the competency duty in 145.A.30(e) with its safety-training component, the two-year cycle for certifying and support staff in 145.A.35(d), fuel tank safety and EWIS for the populations its own assessments assign, and the records duty in 145.A.55. Staff moving from a Part-CAO into a Part-145 organisation therefore meet safety training including human factors as a rule-text requirement that Part-CAO does not carry. Our clause-by-clause Part-145 training map maps each of those duties to its clause, and How often is human factors training required under Part-145? walks the date arithmetic.

Does any of this differ in the UK?

This guide quotes the EASA text. The UK carried Regulation (EU) No 1321/2014 into its own law when it left the EASA system, and has amended its version separately since — for Part-145, for example, through SI 2023/588. Check the CAA’s current text for the Annex your organisation is approved under before relying on an EASA clause number; our guide on UK Part-145 safety training after SI 2023/588 covers the Part-145 side.

Choosing a course without guessing

Start from the approval, not from the phrase “Part-M training”:

• In a Part-CAMO or a Part-145 organisation: the rule-text duty is safety training including human factors. Our Safety Training (including Human Factors) Initial course states the clauses it serves, including CAMO.A.305(g), and the continuation course serves the two-year cycle.
• As a nominated person, or anyone who needs the Part-M rules themselves: our EASA Part-66 Module 10 Aviation Legislation course covers sub-module 10.7 Continuing airworthiness — Part-M, Part-ML, Part-CAMO, Part-CAO and the aircraft maintenance programme — inside the full regulatory framework.
• In a Part-CAO: the organisation’s own procedure in the CAE decides what training keeps each role competent. Either course above can serve as recorded evidence under CAO.A.035(e), if the CAE accepts external providers.

Each course ends in a completion certificate stating the course name, the learner’s name, the completion date and the issuer — the fields a personnel record needs. Whether any provider’s certificate satisfies a given exposition remains the organisation’s and its competent authority’s call.