EASA Part 21 Subpart J Regulatory Framework Essentials

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Subpart J regulatory approval provides for the Design of Aircraft and Components Design Organisation Approval (DOA) and Subpart G provides for a Production Organization approval (POA).

The primary function of the DOA holder is to assume full responsibility for all designed product (Initial Airworthiness) including the need to support Continued Airworthiness of the designed product.

Whilst the role of the POA relates in part to the role of (Continued Airworthiness) the primary function of the organization is Initial Airworthiness in respect of managing the production of Products Parts and Appliances for use on aircraft, the process is regulated in accordance with the requirements of Part 21.

A company holding Part-21 Subpart J Design Organisation Approval (DOA), has the approval to Design and certify aircraft parts.

This Training Covers the Essential Elements relating to PART 21 Subpart J.

Training Regulatory Compliance

EASA Part 21 shows compliance additionally with (EU) No 2015/1039 (01/07/2015) and (EU) 2016/5 (12/01/2016).


The course is beneficial for persons involved with Part 21 Production Organisations, Quality Managers/ Quality Auditors and Airline CAMO Staff.


- Contents
- General Introduction
- Abbreviations
- Introduction to EASA Part 21 Regulatory Environment
- Understanding the Certification and Approval Process
- Subpart J Design Organisation Approval
- Subpart J Design Organisation Approval Initial Issue and Assurance Process
- EASA Delegation Processes (Part 21 Subpart J)
- Practical Considerations related to the Design Assurance System and the roles and responsibilities including CVEs
- Understanding the process to manage the Design Organisation Handbook including the Procedures, Organisation Charts and the Amendment Procedure


Nominated personnel and other key personnel in Part 21 Design & Production Organisations, Quality Managers/ Quality Auditors and Airline CAMO Staff.

Regulators and persons interested in obtaining a detailed understanding of the Design, Certification and Production of Aircraft Parts.


It is not necessary to have prior knowledge to participate in this training.


A detailed understanding of Aviation Product Design and Production regulatory driven processes.

A thorough understanding of the associated terminology and procedures including changes to Type Design, Control of Supplementary Type Certificates (STC) (modifications) and repairs.

This training is intended to focus on the essential elements to provide a comprehensive understanding of the entire Design Organization / Production Organization Process.


Course type: Presentation without voice over

Duration equivalent to 1-day classroom training
Category: Part 21
Price: 79.50 EUR


2 to 4 courses/delegates - 10%
5 to 9 courses/delegates - 15%
10 to 24 courses/delegates - 20%
25 to 49 courses/delegates - 30%
> 50 courses/delegates - 40%

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