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21L.A.125 Resources of the declared production organisation

Annex Ib · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

IRImplementing rule

21L.A.125Resources of the declared production organisation

The declared production organisation shall ensure that:

(a)the facilities, working conditions, equipment and tools, processes and associated materials, the number and competence of staff, and the general organisation are adequate to discharge its obligations under point 21L.A.127;

(b)with regard to all necessary airworthiness and environmental protection data:

1.it is in receipt of such data from the Agency, and from the declarant of design compliance or the holder of, or the applicant for, the type certificate, or design approval, to determine its conformity with the applicable design data;

2.it has established a procedure to ensure that airworthiness and environmental compatibility data is correctly incorporated into its production data;

3.such data is kept up to date and made available to all personnel who need access to such data to perform their duties;

(c)with regard to management and staff:

1.an accountable manager has been nominated by the declared production organisation with authority to ensure that, within the organisation, all production is performed to the required standards and that the declared production organisation is continuously in compliance with the requirements of the management system for production referred to in point (a) of point 21L.A.124, and the processes and the procedures identified in point (d) of point 21L.A.124;

2.a person or group of persons has or have been nominated by the accountable manager to ensure that the organisation is in compliance with the requirements of this Subpart, and is (are) identified, together with the extent of their authority. Such a person or group of persons shall be responsible to the accountable manager and have direct access to them. They shall have the appropriate knowledge, background and experience to discharge their responsibilities;

3.staff at all levels have been given appropriate authority to be able to discharge their allocated responsibilities and that there is full and effective coordination within the declared production organisation in respect of airworthiness and environmental compatibility data matters;

4.the organisational structure of the organisation along with the key personnel who are responsible for ensuring that the organisation is in compliance with this Subpart is documented and kept updated;

(d)with regard to certifying staff, authorised by the declared production organisation to sign the documents issued under point 21L.A.126 within the scope of declared production activities:

1.the knowledge, background (including other functions in the organisation), and experience of the certifying staff are appropriate to discharge their allocated responsibilities;

2.certifying staff are provided with evidence of the scope of their authorisation. A list of certifying staff shall be maintained by the declared production organisation.

IR · 21L.A.125 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GMGuidance material

GM1 21L.A.125(a)Resources of the declared production organisation

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GENERAL

1.FACILITIES AND WORKING CONDITIONS A facility is a working area where the working conditions and the environment are controlled as appropriate in respect of cleanliness, temperature, humidity, ventilation, lighting, space/access, noise, and air pollution.

2.EQUIPMENT AND TOOLS The organisation’s equipment and tools enables all the specified tasks to be accomplished in a repeatable manner without any detrimental effects. The calibration control of the equipment and tools that affect the dimensions and values of products makes it possible for the organisation to demonstrate compliance with, and be traceable to, national or international standards.

3.NUMBER OF STAFF Sufficient staff means that, for each function, according to the nature of the work and the production rate, the organisation has a sufficient number of qualified staff to accomplish all the specified manufacturing tasks and to attest the conformity of such task. The number of staff should be such that the relevant airworthiness considerations may be applied in all areas without any undue pressure.

4.COMPETENCE OF STAFF An evaluation of the competence of the staff is performed as part of the quality system. This should include, where appropriate, verification that specific qualification standards have been implemented, for example, for NDT, welding, etc. Adequate initial and recurrent training should be provided in relation to the job function to ensure that staff remain competent. That training should be adapted based on experience that is gained within the organisation.

GM · GM1 21L.A.125(a) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GMGuidance material

GM1 21L.A.125(b)Resources of the declared production organisation

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MANUFACTURING DATA When a declared production organisation develops its own manufacturing data, such as computer-based data, from the design data package that is delivered by a design organisation, procedures are required to ensure the correct transcription of the original design data. Procedures are required to define the manner in which airworthiness and environmental compatibility data is used to issue and update the production/quality data, which determines the conformity of products and parts. The procedure should also define the traceability of such data to each individual product or part for the purpose of certifying their condition for safe operation and issuing a statement of conformity or an EASA Form 1.

GM · GM1 21L.A.125(b) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.125(c)(1)Resources of the declared production organisation

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ACCOUNTABLE MANAGER The term ‘accountable manager’ refers to the manager that is responsible and has corporate authority for ensuring that all production work is carried out to the required standards. This function may be performed by the chief executive officer or by another person in the organisation, nominated by the chief executive officer to fulfil the function, provided that the position and authority of that person in the organisation allows that person to discharge the associated responsibilities. The accountable manager should:

(a)have sufficient knowledge and authority to be able to respond to the competent authority regarding major issues concerning the declared production organisation, and to implement any necessary improvements;

(b)have an understanding of this Annex, sufficient to discharge the relevant responsibilities.

AMC · AMC1 21L.A.125(c)(1) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.125(c)(2)Resources of the declared production organisation

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NOMINATED MANAGERS The person or group of persons nominated in accordance with point 21L.A.125(c)(2) should represent the management structure of the organisation and be responsible for all the functions specified in Subpart G. Depending on the size of the declared production organisation, the functions may be subdivided among individual managers (and, in fact, may be further subdivided) or combined in a variety of ways. The responsibilities and the duties of each individual manager should be clearly defined in such a way that all the responsibilities are covered. Where a declared production organisation chooses to appoint managers for all or for any combination of the functions identified in Part 21 Light because of the size of the undertaking, those managers should ultimately report to the accountable manager nominated in accordance with point 21L.A.125(c)(1). Where a manager does not directly report to the accountable manager, that manager should have direct access to the accountable manager formally established. One such manager, normally known as the ‘quality manager’, should be responsible for the independent monitoring function as defined in point 21L.A.124(c). The independent monitoring function should be independent from other functions. As such, the quality manager should not be at the same time one of the other persons that are referred to in point 21.A.125(c)(2). The role of the quality manager should be to ensure that:

(a)the activities of the organisation are monitored for compliance with the applicable requirements and any additional requirements as established by the organisation, and that those activities are performed properly under the supervision of the nominated persons that are referred to in point 21L.A.125(c)(2);

(b)an audit plan is properly implemented, maintained, and continually reviewed and improved; and

(c)corrective actions are requested, as necessary, and their implementation is followed up.

AMC · AMC1 21L.A.125(c)(2) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GMGuidance material

GM1 21L.A.125(c)(4)Resources of the declared production organisation

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DOCUMENTATION OF ORGANISATIONAL STRUCTURE AND KEY PERSONNEL Point 21L.A.125(c)(4) requires that the organisational structure together with the key personnel are documented. The key personnel are those managers nominated according to point 21L.A.125(c)(1) and (c)(2). This could be achieved through the information included in the declared production organisation exposition (DPOE) (see AMC1 21L.A.124(d)). The above information should be kept updated to reflect changes made within the organisation.

GM · GM1 21L.A.125(c)(4) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.125(d)(1)Resources of the declared production organisation

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CERTIFYING STAFF

(a)Certifying staff should be nominated by the declared production organisation to ensure that each of the products and/or parts that are produced within the organisation’s scope of work, qualifies for a statement of conformity or a release certificate. The position and number of certifying staff should be appropriate to the complexity of the product and the production rate.

(b)The qualifications of certifying staff should be based on their knowledge, background and experience and on specific training (or testing) that is established by the organisation appropriate to the product or part to be released.

(c)Training should be given to develop a satisfactory level of knowledge of product/part specifications, the organisation’s procedures, the management system for production (including compliance monitoring), aviation legislation, and the associated regulations, AMC and GM that are relevant to their particular role. Training should include on-the-job training, as relevant.

(d)For that purpose, in addition to the general training policy, the organisation should define its own standards for training, including pre-qualification standards, for personnel to be identified as certifying staff.

(e)The training policy is part of the quality system.

(f)The training should be updated in response to experience gained and changes in technology.

(g)A feedback system to ascertain that the required standards are being maintained should be put in place to ensure the continuing compliance of personnel with authorisation requirements.

(h)For the release of products or parts, the responsibilities to issue statements of conformity or authorised release certificates (EASA Form 1) are allocated to the certifying staff that is identified in point 21L.A.125(d)(2).

AMC · AMC1 21L.A.125(d)(1) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC1 21L.A.125(d)(2)Resources of the declared production organisation

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EVIDENCE OF AUTHORISATION

(a)Certifying staff should be provided with evidence of their authorisation. This should be done through an internal authorisation document. That document should be in a style that makes its scope clear to the certifying staff and any entitled person that may require to examine the authorisation. It should include the privileges that are granted to the certifying staff and the category of products upon which they may exercise those privileges. Where codes are used to define the scope, an interpretation document should be readily available.

(2)Certifying staff are not required to carry the authorisation document at all times, but they should be able to make it available within a reasonable time following a request from an entitled person, which includes the competent authority.

(3)The list of certifying staff should be included in the declared production organisation exposition (DPOE) (see AMC 21L.A.124(d)), if utilised, or in equivalent processes and procedures.

AMC · AMC1 21L.A.125(d)(2) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

All rules in SECTION A - TECHNICAL REQUIREMENTS

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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