---
title: "21L.A.1 – 21L.A.275: SECTION A - TECHNICAL REQUIREMENTS (Annex Ib, Initial Airworthiness) — rule index · Avioverse"
description: "21L.A.1 – 21L.A.275, Regulation (EU) No 748/2012. This Section establishes general rights and obligations that are applicable to:"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements"
---

# SECTION A - TECHNICAL REQUIREMENTS

Annex Ib · Initial Airworthiness and Environmental Protection · Regulation (EU) No 748/2012 · 21L.A.1 – 21L.A.275

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1. ## [21L.A.1 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-1)

   This Section establishes general rights and obligations that are applicable to:

2. ## [21L.A.2 Obligations and actions performed by a person other than the applicant for, or holder of, a certificate or the declarant of a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-2)

   The actions and obligations required to be undertaken by the applicant for, or holder of, a certificate for a product or part or by the declarant of a…

3. ## [21L.A.3 Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3)

   Without prejudice to Regulation (EU) No 376/2014 of the European Parliament and of the Council and its delegated and implementing acts, any natural or…

   [GM1 21L.A.3 Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm1-21l-a-3)

   [AMC1 21L.A.3(a) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#amc1-21l-a-3-a)

   [GM1 21L.A.3(a) ;(b) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm1-21l-a-3-a)

   [GM1 21L.A.3(a) ;(e);(f) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm1-21l-a-3-a-2)

   [GM2 21L.A.3(a) ;(e);(f) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm2-21l-a-3-a)

   [GM1 21L.A.3(a)(1) ;(b)(1) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm1-21l-a-3-a-1)

   [GM2 21L.A.3(a)(1) ;(b)(1) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm2-21l-a-3-a-1)

   [AMC1 21L.A.3(a)(3) ;(b)(3);(d) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#amc1-21l-a-3-a-3)

   [GM1 21L.A.3(a)(3) ;(b)(3) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#gm1-21l-a-3-a-3)

   [AMC1 21L.A.3(e) Reporting system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-3#amc1-21l-a-3-e)

4. ## [21L.A.4 Airworthiness directives](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-4)

   When an airworthiness directive has to be issued by the Agency in accordance with point 21L.B.23 to correct an unsafe condition, or to require the…

5. ## [21L.A.5 Collaboration between design and production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-5)

   The holder of a type certificate, supplemental type certificate, approval of a change to type certificate or approval of a repair design, the declarant…

   [AMC1 21L.A.5 Collaboration between design and production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-5#amc1-21l-a-5)

6. ## [21L.A.6 Marking](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-6)

   The holder of a type certificate, supplemental type certificate, approval of a change to type certificate or approval of a repair design, or the…

7. ## [21L.A.7 Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7)

   All natural or legal persons who hold or who have applied for a type certificate, supplemental type certificate, repair design approval, or permit to…

   [AMC1 21L.A.7 Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7#amc1-21l-a-7)

   [GM1 21L.A.7 Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7#gm1-21l-a-7)

   [AMC1 21L.A.7(a) Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7#amc1-21l-a-7-a)

   [GM1 21L.A.7(a) ;(b) Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7#gm1-21l-a-7-a)

   [AMC1 21L.A.7(d) Record-keeping](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-7#amc1-21l-a-7-d)

8. ## [21L.A.8 Manuals](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-8)

   The holder of a type certificate or supplemental type certificate or the declarant of a declaration of design compliance shall produce, maintain and…

9. ## [21L.A.9 Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9)

   The holder of a type certificate, supplemental type certificate, design change or repair design approval or the declarant of a declaration of design…

   [AMC1 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#amc1-21l-a-9-a)

   [AMC2 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#amc2-21l-a-9-a)

   [AMC3 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#amc3-21l-a-9-a)

   [GM1 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm1-21l-a-9-a)

   [GM2 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm2-21l-a-9-a)

   [GM3 21L.A.9(a) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm3-21l-a-9-a)

   [AMC1 21L.A.9(b) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#amc1-21l-a-9-b)

   [GM1 21L.A.9(b) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm1-21l-a-9-b)

   [GM2 21L.A.9(b) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm2-21l-a-9-b)

   [GM3 21L.A.9(b) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm3-21l-a-9-b)

   [GM4 21L.A.9(b) Instructions for continued airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#gm4-21l-a-9-b)

   [AMC1 21L.A.9(d) Completeness and timely availability of the Instructions for Continued Airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-9#amc1-21l-a-9-d)

10. ## [21L.A.10 Access and investigation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-10)

    All natural or legal persons who hold or who have applied for a type certificate, supplemental type certificate, major repair design approval, permit to…

    [GM1 21L.A.10 Access and investigation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-10#gm1-21l-a-10)

11. ## [21L.A.11 Findings and observations](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-11)

    After the receipt of the notification of findings, the natural or legal person who holds or who has applied for a type certificate, supplemental type…

    [GM1 21L.A.11(a) Findings and observations](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-11#gm1-21l-a-11-a)

    [AMC1 21L.A.11(a) Findings and observations](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-11#amc1-21l-a-11-a)

    [AMC1 21L.A.11(b) Findings and observations](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-11#amc1-21l-a-11-b)

12. ## [21L.A.12 Means of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-12)

    A legal or natural person may use any alternative means of compliance to the acceptable means of compliance (AMC) to establish compliance with this…

    [AMC1 21L.A.12(b) Means of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-12#amc1-21l-a-12-b)

    [GM1 21L.A.12 Means of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-12#gm1-21l-a-12)

    [GM2 21L.A.12 Means of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-12#gm2-21l-a-12)

13. ## [21L.A.21 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-21)

    This Subpart establishes the procedure for applying for type certificates, and establishes the rights and obligations of the applicants for, and holders…

    [GM1 21L.A.21 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-21#gm1-21l-a-21)

14. ## [21L.A.22 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-22)

    Any natural or legal person who has demonstrated, or is in the process of demonstrating, their design capability in accordance with point 21L.A.23, may…

15. ## [21L.A.23 Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-23)

    An applicant for a type certificate shall demonstrate their design capability by:

    [GM1 21L.A.23(a) Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-23#gm1-21l-a-23-a)

    [GM1 21L.A.23(b) Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-23#gm1-21l-a-23-b)

16. ## [21L.A.24 Application for a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-24)

    An application for a type certificate shall be made in a form and manner established by the Agency.

    [AMC1 21L.A.24(a) Application for a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-24#amc1-21l-a-24-a)

    [AMC1 21L.A.24(b)(4) Application for a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-24#amc1-21l-a-24-b-4)

    [AMC2 21L.A.24(b)(4) Application for a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-24#amc2-21l-a-24-b-4)

    [GM1 21L.A.24(c) Application for a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-24#gm1-21l-a-24-c)

17. ## [Appendix A to AMC1 21L.A.24(b) Means-of-compliance codes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-24-b)

    Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:

18. ## [21L.A.25 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25)

    The applicant for a type certificate shall, following the acceptance of the compliance demonstration plan by the Agency and in accordance with its…

    [AMC1 21L.A.25(a) ;(b) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#amc1-21l-a-25-a)

    [AMC1 21L.A.25(c) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#amc1-21l-a-25-c)

    [GM1 21L.A.25(d) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#gm1-21l-a-25-d)

    [AMC1 21L.A.25(e)(1) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#amc1-21l-a-25-e-1)

    [AMC1 21L.A.25(e)(2) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#amc1-21l-a-25-e-2)

    [AMC1 21L.A.25(e)(3) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#amc1-21l-a-25-e-3)

    [GM1 21L.A.25(f) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-25#gm1-21l-a-25-f)

19. ## [21L.A.26 Type design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-26)

    The applicant for a type certificate shall define the product type design to enable its unique and unambiguous identification, consisting of:

20. ## [21L.A.27 Requirements for the issuance of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-27)

    In order to be issued with a type certificate, the applicant shall:

    [GM1 21L.A.27(c)(1) Requirements for the issuance of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-27#gm1-21l-a-27-c-1)

    [AMC1 21L.A.27(d) Requirements for the issuance of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-27#amc1-21l-a-27-d)

21. ## [21L.A.28 Obligations of a type-certificate holder](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-28)

    The holder of a type certificate shall undertake the obligations of a type-certificate holder set forth in Subpart A of this Annex and shall continue to…

22. ## [21L.A.29 Transferability of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-29)

    A type certificate may be transferred to a new holder, provided that the Agency has verified, in accordance with point 21L.B.49, that the natural or…

    [AMC1 21L.A.29 Transferability of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-29#amc1-21l-a-29)

23. ## [21L.A.30 Continued validity of a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-30)

    A type certificate shall remain valid as long as: the type certificate is not surrendered by the holder;

24. ## [21L.A.41 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-41)

    This Subpart establishes the procedure for declaring the design compliance of aircraft, and establishes the rights and obligations of the persons making…

25. ## [21L.A.42 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-42)

    Any natural or legal person may declare the compliance of an aircraft design under the conditions laid down in this Subpart.

26. ## [21L.A.43 Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43)

    Prior to producing an aircraft or agreeing with a production organisation to produce an aircraft, a natural or legal person who designs that aircraft…

    [AMC1 21L.A.43(b) Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#amc1-21l-a-43-b)

    [GM1 21L.A.43(b)(10) Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#gm1-21l-a-43-b-10)

    [AMC1 21L.A.43(b)(11) Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#amc1-21l-a-43-b-11)

    [GM1 21L.A.43(b)(4) ;(b)(5) Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#gm1-21l-a-43-b-4)

    [GM1 21L.A.43(c) Information to be provided to the Agency](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#gm1-21l-a-43-c)

    [AMC1 21L.A.43(c) Declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-43#amc1-21l-a-43-c)

27. ## [21L.A.44 Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44)

    Prior to making a declaration of design compliance in accordance with point 21L.A.43, the declarant responsible for design of that aircraft shall, for…

    [GM1 21L.A.44 Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#gm1-21l-a-44)

    [AMC1 21L.A.44(a) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#amc1-21l-a-44-a)

    [GM1 21L.A.44(a) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#gm1-21l-a-44-a)

    [AMC1 21L.A.44(b) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#amc1-21l-a-44-b)

    [AMC1 21L.A.44(c) ;(d);(e) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#amc1-21l-a-44-c)

    [GM1 21L.A.44(f) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#gm1-21l-a-44-f)

    [GM1 21L.A.44(g) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#gm1-21l-a-44-g)

    [GM2 21L.A.44(g) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-44#gm2-21l-a-44-g)

28. ## [Appendix A to AMC1 21L.A.44(a) Compliance activities for a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-44-a)

    MEANS-OF-COMPLIANCE CODES Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:

29. ## [21L.A.45 Detailed technical specifications and environmental protection requirements that are applicable to aircraft subject to declarations of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-45)

    The declarant shall demonstrate the compliance of the aircraft design with the detailed technical specifications and the applicable environmental…

    [GM1 21L.A.45 Detailed technical specifications and environmental protection requirements that are applicable to aircraft subject to declarations of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-45#gm1-21l-a-45)

30. ## [21L.A.46 Aircraft design data](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-46)

    The declarant shall clearly define the aircraft design to enable its unique and unambiguous identification.

31. ## [21L.A.47 Obligations of the declarant of a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-47)

    The declarant who made a declaration of aircraft design compliance to the Agency in accordance with point 21L.A.43 shall:

    [AMC 21L.A.47(a) Physical inspection and flight tests of the first article of that aircraft (first-article inspection) prior to registration of a declaration of design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-47#amc-21l-a-47-a)

32. ## [21L.A.48 Non-transferability of a declaration of aircraft design compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-48)

    A declaration of aircraft design compliance cannot be transferred.

33. ## [21L.A.61 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-61)

    This Subpart establishes: the procedure for applying for the approval of changes to type certificates for products certified in accordance with this…

    [GM1 21L.A.61 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-61#gm1-21l-a-61)

34. ## [21L.A.62 Standard changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-62)

    Standard changes are those changes to a type certificate of a product approved in accordance with Subpart B of Section B of this Annex:

    [GM1 21L.A.62 Standard changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-62#gm1-21l-a-62)

35. ## [21L.A.63 Classification of changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-63)

    Changes to a type certificate shall be classified as minor or major.

    [AMC1 21L.A.63(c) Classification of changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-63#amc1-21l-a-63-c)

    [GM1 21L.A.63 Classification of changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-63#gm1-21l-a-63)

36. ## [Appendix A to GM1 21L.A.63 Classification of changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-gm1-21l-a-63)

    EXAMPLES OF MAJOR CHANGES PER DISCIPLINE The information below is intended to provide a few examples of major changes per discipline, resulting from the…

37. ## [Appendix B to GM 21L.A.63 Classification of changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-b-to-gm-21l-a-63)

    The following tables provide examples of ‘substantial’ changes.

38. ## [21L.A.64 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-64)

    Only the type-certificate holder may apply for the approval of a major change to a type certificate under this Subpart;

39. ## [21L.A.65 Application for a change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-65)

    An application for the approval of a change to a type certificate shall be made in a form and manner established by the Agency.

    [AMC1 21L.A.65 Application for a change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-65#amc1-21l-a-65)

    [AMC1 21L.A.65(b) Application for a change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-65#amc1-21l-a-65-b)

40. ## [21L.A.66 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66)

    The applicant for a major change to a type certificate shall demonstrate compliance with the applicable type-certification basis and the applicable…

    [AMC1 21L.A.66 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#amc1-21l-a-66)

    [AMC1 21L.A.66(c) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#amc1-21l-a-66-c)

    [GM1 21L.A.66(d) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#gm1-21l-a-66-d)

    [AMC1 21L.A.66(e)(1) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#amc1-21l-a-66-e-1)

    [AMC1 21L.A.66(e)(2) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#amc1-21l-a-66-e-2)

    [AMC1 21L.A.66(e)(3) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#amc1-21l-a-66-e-3)

    [GM1 21L.A.66(f) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-66#gm1-21l-a-66-f)

41. ## [21L.A.67 Requirements for the approval of a minor change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-67)

    In order to be issued with an approval of a minor change to a type certificate, the applicant shall:

    [AMC1 21L.A.67 Requirements for the approval of a minor change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-67#amc1-21l-a-67)

    [GM1 21L.A.67(c) Requirements for the approval of a minor change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-67#gm1-21l-a-67-c)

42. ## [21L.A.68 Requirements for the approval of a major change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-68)

    In order to be issued with an approval of a major change to a type certificate, the applicant shall:

    [AMC1 21L.A.68 Requirements for the approval of a major change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-68#amc1-21l-a-68)

    [AMC1 21L.A.68(c) Requirements for the approval of a major change to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-68#amc1-21l-a-68-c)

43. ## [21L.A.69 Approval of a change to a type certificate under a privilege](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-69)

    The approval of a change to a type certificate that it has designed may be issued by an approved design organisation without an application according to…

44. ## [21L.A.70 Obligations for minor changes to a type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-70)

    The holder of an approval of a minor change to a type certificate shall ensure that the obligations for holders of minor change approvals of Subpart A of…

45. ## [21L.A.81 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-81)

    This Subpart establishes the procedure for natural or legal persons other than the holder of that type certificate for applying for the approval of major…

    [GM1 21L.A.81 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-81#gm1-21l-a-81)

46. ## [21L.A.82 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-82)

    Any natural or legal person who has demonstrated, or is in the process of demonstrating, or have declared, their design capability in accordance with…

47. ## [21L.A.83 Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-83)

    An applicant for a supplemental type certificate shall demonstrate their design capability by:

    [GM1 21L.A.83(a) Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-83#gm1-21l-a-83-a)

    [GM1 21L.A.83(b) Demonstration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-83#gm1-21l-a-83-b)

48. ## [21L.A.84 Application for a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-84)

    An application for a supplemental type certificate shall be made in a form and manner established by the Agency.

    [AMC1 21L.A.84(a) Application for a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-84#amc1-21l-a-84-a)

    [AMC1 21L.A.84(b)(1) Application for a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-84#amc1-21l-a-84-b-1)

49. ## [21L.A.85 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85)

    The applicant for a supplemental type certificate shall demonstrate compliance with the applicable type-certification basis and the applicable…

    [AMC1 21L.A.85 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85)

    [AMC1 21L.A.85(b) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-b)

    [AMC1 21L.A.85(a) ;(b) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-a)

    [AMC1 21L.A.85(c) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-c)

    [GM1 21L.A.85(d) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#gm1-21l-a-85-d)

    [AMC1 21L.A.85(e)(1) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-e-1)

    [AMC1 21L.A.85(e)(2) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-e-2)

    [AMC1 21L.A.85(e)(3) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#amc1-21l-a-85-e-3)

    [GM1 21L.A.85(f) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-85#gm1-21l-a-85-f)

50. ## [Appendix A to AMC1 21L.A.85 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-85)

    MEANS-OF-COMPLIANCE CODES Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:

51. ## [21L.A.86 Requirements for approval of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-86)

    In order to be issued with a supplemental type certificate, the applicant shall:

    [AMC1 21L.A.86 Requirements for approval of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-86#amc1-21l-a-86)

    [AMC1 21L.A.86(a)(5) Requirements for approval of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-86#amc1-21l-a-86-a-5)

52. ## [21L.A.87 Approval of a supplemental type certificate under a privilege](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-87)

    The approval of a supplemental type certificate for a major change it has designed may be issued by an approved design organisation without an…

53. ## [21L.A.88 Obligations of a holder of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-88)

    Each holder of a supplemental type certificate shall undertake the obligations of a supplemental type-certificate holder set forth in Subpart A of this…

54. ## [21L.A.89 Transferability of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-89)

    A supplemental type certificate may be transferred to a new holder, provided that the Agency has verified that the natural or legal person to whom the…

55. ## [21L.A.90 Continued validity of a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-90)

    A supplemental type certificate shall remain valid as long as:

56. ## [21L.A.91 Changes to a part of a product covered by a supplemental type certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-91)

    A minor change to a part of a product covered by a supplemental type certificate shall be approved in accordance with Subpart D of this Annex.

57. ## [21L.A.101 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-101)

    This Subpart establishes: the procedure for declaring the compliance of a change to the design of an aircraft which was subject to a declaration made in…

    [GM1 21L.A.101 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-101#gm1-21l-a-101)

58. ## [21L.A.102 Standard changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-102)

    Standard changes are changes to the design of an aircraft which was subject to a declaration made in accordance with Subpart C of this Annex and which:

    [GM1 21L.A.102 Standard changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-102#gm1-21l-a-102)

59. ## [21L.A.103 Classification of changes to the design of an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-103)

    Changes to the design of an aircraft which was subject to a declaration made in accordance with Subpart C of this Annex shall be classified as minor or…

    [GM1 21L.A.103 Classification of changes to the design of an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-103#gm1-21l-a-103)

60. ## [Appendix A to GM1 21L.A.103 Classification of changes to the design of an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-gm1-21l-a-103)

    EXAMPLES OF MAJOR CHANGES PER DISCIPLINE The information below is intended to provide a few examples of major changes per discipline, resulting from the…

61. ## [Appendix B to point 21L.A.103 Classification of changes to the design of an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-b)

    The following tables provide examples of ‘substantial’ changes.

62. ## [21L.A.104 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-104)

    A declarant who made a declaration of aircraft design compliance in accordance with Subpart C of this Annex may declare compliance of a minor change to…

63. ## [21L.A.105 Declaration of design compliance for minor changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-105)

    Prior to installing or incorporating or agreeing with a production organisation to install or incorporate a minor change to the design of an aircraft for…

    [AMC1 21L.A.105(a) Declaration of design compliance for minor changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-105#amc1-21l-a-105-a)

    [AMC1 21L.A.105(b) Declaration of design compliance for minor changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-105#amc1-21l-a-105-b)

    [AMC1 21L.A.105(c) Declaration of design compliance for minor changes](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-105#amc1-21l-a-105-c)

64. ## [21L.A.106 Obligations of the person making a declaration of compliance of the design of a minor change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-106)

    Any person that has made a declaration of compliance of a minor change to an aircraft design in accordance with point 21L.A.105 shall:

65. ## [21L.A.107 Declaration of design compliance for a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-107)

    Prior to installing or incorporating or agreeing with a production organisation to install or incorporate a major change to the design of an aircraft for…

    [AMC1 21L.A.107(b) Declaration of design compliance for a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-107#amc1-21l-a-107-b)

    [GM1 21L.A.107(c) Declaration of design compliance for a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-107#gm1-21l-a-107-c)

    [AMC1 21L.A.107(e) Declaration of design compliance for a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-107#amc1-21l-a-107-e)

66. ## [21L.A.108 Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108)

    Prior to making a declaration of compliance in accordance with point 21L.A.107, the declarant shall, for that specific design:

    [GM1 21L.A.108 Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#gm1-21l-a-108)

    [AMC1 21L.A.108(a) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#amc1-21l-a-108-a)

    [AMC1 21L.A.108(b) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#amc1-21l-a-108-b)

    [AMC1 21L.A.108(c) ;(d);(e) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#amc1-21l-a-108-c)

    [AMC1 21L.A.108(f) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#amc1-21l-a-108-f)

    [GM1 21L.A.108(f) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-108#gm1-21l-a-108-f)

67. ## [Appendix A to AMC1 21L.A.108(a) Compliance activities for declaring compliance of a major change](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-108-a)

    MEANS-OF-COMPLIANCE CODES Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:

68. ## [21L.A.121 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-121)

    This Subpart establishes: the procedures for declaring the production capability of natural and legal persons showing the conformity of products and…

    [GM1 21L.A.121(a) Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-121#gm1-21l-a-121-a)

69. ## [21L.A.122 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-122)

    Any natural or legal person (‘organisation’) may declare their production capability under this Subpart, if that person:

    [GM1 21L.A.122(a) ;(b) Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-122#gm1-21l-a-122-a)

    [AMC1 21L.A.122(c) Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-122#amc1-21l-a-122-c)

    [GM1 21L.A.122(c) Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-122#gm1-21l-a-122-c)

70. ## [21L.A.123 Declaration of production capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-123)

    Prior to producing any products or parts, an organisation intending to show the conformity of those products or parts with the applicable design data…

    [AMC1 21L.A.123(c) Declaration of production capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-123#amc1-21l-a-123-c)

71. ## [21L.A.124 Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124)

    The declared production organisation shall establish, implement, and maintain a management system for production with clear accountability and lines of…

    [GM1 21L.A.124(b) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b)

    [GM2 21L.A.124(b) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm2-21l-a-124-b)

    [GM1 21L.A.124(b)(1) ;(b)(2)(iii) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b-1)

    [GM1 21L.A.124(b)(2)(vi) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b-2-vi)

    [GM1 21L.A.124(b)(2)(vi) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b-2-vi-2)

    [GM1 21L.A.124(b)(2)(viii) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b-2-viii)

    [GM1 21L.A.124(b)(2)(xiii) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-b-2-xiii)

    [GM1 21L.A.124(c) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-c)

    [GM1 21L.A.124(d) Management system for production](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-d)

    [GM1 21L.A.124(e) Management system for production and 21L.A.126(e) Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-e)

    [GM1 21L.A.124(e) Management system for production and 21L.A.126(e) Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-124#gm1-21l-a-124-e-2)

72. ## [21L.A.125 Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125)

    The declared production organisation shall ensure that: the facilities, working conditions, equipment and tools, processes and associated materials, the…

    [GM1 21L.A.125(a) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#gm1-21l-a-125-a)

    [GM1 21L.A.125(b) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#gm1-21l-a-125-b)

    [AMC1 21L.A.125(c)(1) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#amc1-21l-a-125-c-1)

    [AMC1 21L.A.125(c)(2) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#amc1-21l-a-125-c-2)

    [GM1 21L.A.125(c)(4) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#gm1-21l-a-125-c-4)

    [AMC1 21L.A.125(d)(1) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#amc1-21l-a-125-d-1)

    [AMC1 21L.A.125(d)(2) Resources of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-125#amc1-21l-a-125-d-2)

73. ## [21L.A.126 Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-126)

    A declared production organisation is entitled to show the conformity of the products and parts that are within the scope of this Section and that it has…

    [GM1 21L.A.126(a) Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-126#gm1-21l-a-126-a)

    [GM1 21L.A.126(d) Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-126#gm1-21l-a-126-d)

74. ## [21L.A.127 Obligations of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127)

    The declared production organisation shall work in accordance with clearly defined procedures, practices and processes.

    [GM1 21L.A.127(a) Obligations of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127#gm1-21l-a-127-a)

    [AMC1 21L.A.127(b) Obligations of the declared production organisation and AMC1 21L.A.177(b) Obligations of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127#amc1-21l-a-127-b)

    [GM2 21L.A.127(c) Obligations of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127#gm2-21l-a-127-c)

    [GM1 21L.A.127(l) Obligations of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127#gm1-21l-a-127-l)

    [AMC1 21L.A.127(b) Obligations of the declared production organisation and AMC1 21L.A.177(b) Obligations of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-127#amc1-21l-a-127-b-2)

75. ## [GM1 to 21L.A.127(c) Obligations of the declared production organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/gm1-to-21l-a-127-c-obligations-of-the-declared-production-organisation)

    CONFORMITY WITH APPROVED OR DECLARED DESIGN DATA Individual configurations are often based on the needs of the customer and improvements or changes which…

76. ## [21L.A.128 Notification of changes and cessation of activities](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-128)

    The declared production organisation shall notify the competent authority without undue delay of the following:

    [AMC1 21L.A.128 Notification of changes and cessation of activities](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-128#amc1-21l-a-128)

77. ## [21L.A.141 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-141)

    This Subpart establishes the procedure for applying for a certificate of airworthiness or a restricted certificate of airworthiness for an aircraft whose…

78. ## [21L.A.142 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-142)

    Any natural or legal person under whose name an aircraft is registered or will be registered in a Member State (‘Member State of registry’) may apply for…

79. ## [21L.A.143 Application for a certificate of airworthiness or a restricted certificate of airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-143)

    A natural or legal person shall apply for a certificate of airworthiness or a restricted certificate of airworthiness in a form and manner established by…

    [GM1 21L.A.143(c)(1)(ii) Application for a certificate of airworthiness or a restricted certificate of airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-143#gm1-21l-a-143-c-1-ii)

    [GM1 21L.A.143(d)(1)(iii) Application for a certificate of airworthiness or a restricted certificate of airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-143#gm1-21l-a-143-d-1-iii)

80. ## [21L.A.144 Obligations of the applicant for a certificate of airworthiness or a restricted certificate of airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-144)

    The applicant for a certificate of airworthiness or for a restricted certificate of airworthiness shall:

81. ## [21L.A.145 Transferability and re-issuance of a certificate of airworthiness and of a restricted certificate of airworthiness within Member States](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-145)

    The airworthiness certificate and the airworthiness review certificate shall be transferred together with the aircraft provided that the aircraft remains…

82. ## [21L.A.146 Continued validity of a certificate of airworthiness and of a restricted certificate of airworthiness](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-146)

    A certificate of airworthiness or a restricted certificate of airworthiness shall remain valid as long as:

83. ## [21L.A.161 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-161)

    This Subpart establishes the procedure for applying for a noise certificate or a restricted noise certificate for an aircraft whose design has been…

84. ## [21L.A.162 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-162)

    Any natural or legal person under whose name an aircraft is registered or will be registered in a Member State may apply for a noise certificate or a…

85. ## [21L.A.163 Application](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-163)

    A natural or legal person shall apply for a noise certificate or a restricted noise certificate in a form and manner established by the competent…

    [GM1 21L.A.163(b)(2) Application](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-163#gm1-21l-a-163-b-2)

    [GM1 21L.A.163(c)(1)(ii) Application](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-163#gm1-21l-a-163-c-1-ii)

    [GM2 21L.A.163(c)(1)(ii) Application](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-163#gm2-21l-a-163-c-1-ii)

86. ## [21L.A.164 Transferability and re-issuance of noise certificates and restricted noise certificates within Member States](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-164)

    Where the ownership of an aircraft has changed: if the aircraft remains on the same register, the noise certificate, or the restricted noise certificate…

    [GM1 21L.A.164(b) Transferability and re-issuance of noise certificates and restricted noise certificates within Member States](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-164#gm1-21l-a-164-b)

87. ## [21L.A.165 Continued validity of a noise certificate and of a restricted noise certificate](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-165)

    A noise certificate or a restricted noise certificate shall remain valid as long as:

88. ## [21L.A.171 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-171)

    This Subpart establishes: the procedure for declaring the design capability by natural and legal persons who design products under this Section;

89. ## [21L.A.172 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-172)

    Any natural or legal person (‘organisation’ in this Subpart) required by point 21L.A.22, point 21L.A.82 or point 21L.A.204 to demonstrate their design…

90. ## [21L.A.173 Declaration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-173)

    Prior to or at the same time as applying for a design approval under this Section, or prior to submitting the application for the approval of flight…

    [GM1 21L.A.173(b) Declaration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-173#gm1-21l-a-173-b)

    [AMC1 21L.A.173(c) Declaration of design capability](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-173#amc1-21l-a-173-c)

91. ## [21L.A.174 Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174)

    The declared design organisation shall establish, implement, and maintain a management system for design with clear accountability and lines of…

    [GM1 21L.A.174(b) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-b)

    [GM1 21L.A.174(b)(1) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-b-1)

    [GM1 21L.A.174(b)(2) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-b-2)

    [GM1 21L.A.174(b)(3) ;(e) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-b-3)

    [GM1 21L.A.174(c) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-c)

    [GM1 21L.A.174(d) Management system for design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-174#gm1-21l-a-174-d)

92. ## [21L.A.175 Resources of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-175)

    The declared design organisation shall nominate a head of the design organisation with the authority for ensuring that, within the organisation, all…

    [AMC1 21L.A.175(a) Resources of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-175#amc1-21l-a-175-a)

    [AMC1 21L.A.175(b) ;(c) Resources of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-175#amc1-21l-a-175-b)

    [GM1 21L.A.175(d) Resources of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-175#gm1-21l-a-175-d)

    [AMC1 21L.A.175(d) Resources of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-175#amc1-21l-a-175-d)

93. ## [21L.A.176 Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-176)

    The declared design organisation shall identify the types of design work, the categories of products for which design activities are conducted, and the…

    [GM1 21L.A.176 Scope of work](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-176#gm1-21l-a-176)

94. ## [21L.A.177 Obligations of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-177)

    A declared design organisation shall: work in accordance with clearly defined procedures, practices and processes;

    [GM1 21L.A.177(e) Obligations of the declared design organisation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-177#gm1-21l-a-177-e)

95. ## [21L.A.178 Notification of changes and cessation of activities](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-178)

    The declared design organisation shall notify the Agency without undue delay of the following:

    [AMC1 21L.A.178 Notification of changes and cessation of activities](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-178#amc1-21l-a-178)

96. ## [21L.A.191 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-191)

    This Subpart establishes how the compliance of parts with the airworthiness requirements shall be shown.

97. ## [21L.A.192 Showing of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-192)

    The showing of compliance with the airworthiness requirements of parts to be installed in a type-certified product or an aircraft for which design…

    [AMC1 21L.A.192(a)(4) Showing of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-192#amc1-21l-a-192-a-4)

    [GM1 21L.A.192(a)(4) Showing of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-192#gm1-21l-a-192-a-4)

98. ## [21L.A.193 Release of parts for installation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193)

    A part or product shall only be installed in a product when it is identified by the holder of a type certificate, supplemental type certificate, design…

    [AMC1 21L.A.193(b)(3) ;(b)(4) Verification activities to be conducted on the part or appliance or release documentation prior to installation](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193#amc1-21l-a-193-b-3)

    [GM1 21L.A.193(b)(3) ;(b)(4) Meaning of ‘negligible safety effect’](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193#gm1-21l-a-193-b-3)

    [GM1 21L.A.193(b)(4) Certification specifications referred to in point 21L.A.193(b)(4)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193#gm1-21l-a-193-b-4)

    [GM1 21L.A.193(b)(5) Equipment exempted from an airworthiness approval in accordance with Commission Regulation (EU) No 965/2012](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193#gm1-21l-a-193-b-5)

    [GM1 21L.A.193(b)(6) Part that is part of a higher-level assembly](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-193#gm1-21l-a-193-b-6)

99. ## [21L.A.201 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-201)

    This Subpart establishes: the procedure for applying for the approvals of repair designs to type-certified products;

    [GM1 21L.A.201 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-201#gm1-21l-a-201)

100. ## [21L.A.202 Standard repairs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-202)

     Standard repairs are repair designs to a type-certified product approved in accordance with Subpart B of Section B of this Annex and which:

     [GM1 21L.A.202 Standard repairs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-202#gm1-21l-a-202)

101. ## [21L.A.203 Classification of repair designs to a type-certified product](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-203)

     Repair designs to a type-certified product shall be classified as minor or major.

     [GM1 21L.A.203(a) Classification of repair designs to a type-certified product](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-203#gm1-21l-a-203-a)

102. ## [21L.A.204 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-204)

     Any natural or legal person who has demonstrated, or is in the process of demonstrating, their design capability in accordance with point 21L.A.23, may…

103. ## [21L.A.205 Application for the approval of a repair design to a type-certified product](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-205)

     An application for an approval of a repair design to a type-certified product shall be made in a form and manner established by the Agency.

     [AMC1 21L.A.205(a) Application for the approval of a repair design to a type-certificated product](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-205#amc1-21l-a-205-a)

     [AMC1 21L.A.205(b) Application for the approval of a repair design to a type-certificated product](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-205#amc1-21l-a-205-b)

104. ## [21L.A.206 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206)

     The applicant for the approval of a major repair design shall demonstrate compliance with the applicable type-certification basis and applicable…

     [AMC1 21L.A.206 Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#amc1-21l-a-206)

     [AMC1 21L.A.206(c) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#amc1-21l-a-206-c)

     [AMC1 21L.A.206(e)(1) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#amc1-21l-a-206-e-1)

     [AMC1 21L.A.206(e)(2) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#amc1-21l-a-206-e-2)

     [AMC1 21L.A.206(e)(3) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#amc1-21l-a-206-e-3)

     [GM1 21L.A.206(f) Demonstration of compliance](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-206#gm1-21l-a-206-f)

105. ## [21L.A.207 Requirements for the approval of a minor repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-207)

     In order to be issued with an approval of a minor repair design to a type-certified product, the applicant shall:

     [AMC1 21L.A.207 Requirements for the approval of a minor repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-207#amc1-21l-a-207)

     [GM1 21L.A.207(c) Requirements for the approval of a minor repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-207#gm1-21l-a-207-c)

106. ## [21L.A.208 Requirements for the approval of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-208)

     In order to be issued with an approval of a major repair design to a type-certified product, the applicant shall:

     [AMC1 21L.A.208 Requirements for the approval of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-208#amc1-21l-a-208)

     [AMC1 21L.A.208(c) Requirements for the approval of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-208#amc1-21l-a-208-c)

     [GM1 21L.A.208 Requirements for the approval of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-208#gm1-21l-a-208)

107. ## [21L.A.209 Approval of a repair design under a privilege](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-209)

     The approval of a repair design that it has designed may be issued by an approved design organisation without an application according to point 21L.A.205…

     [GM1 21L.A.209(b) Approval of a repair design under a privilege](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-209#gm1-21l-a-209-b)

108. ## [21L.A.210 Obligations of a holder of a repair design approval](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-210)

     The holder of a repair design approval shall: if they are not the type-certificate or supplemental type-certificate holder, and certification data has…

109. ## [21L.A.211 Unrepaired damage](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-211)

     Damage to a product, the design of which has been approved in accordance with Section B, may not require a repair design if an evaluation of the…

     [GM1 21L.A.211 Unrepaired damage](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-211#gm1-21l-a-211)

110. ## [21L.A.221 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-221)

     This Subpart establishes: the procedure for declaring the compliance of repair designs to an aircraft which was subject to a declaration made in…

     [GM1 21L.A.221 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-221#gm1-21l-a-221)

111. ## [21L.A.222 Standard repairs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-222)

     Standard repairs are repair designs to an aircraft which was subject to a declaration made in accordance with Subpart C of this Annex and which:

     [GM1 21L.A.222 Standard repairs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-222#gm1-21l-a-222)

112. ## [21L.A.223 Classification of repair designs to an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-223)

     Repair designs to an aircraft which was subject to a declaration made in accordance with Subpart C of this Annex shall be classified as either a major or…

     [GM1 21L.A.223(a) Classification of repairs designs to an aircraft for which design compliance has been declared](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-223#gm1-21l-a-223-a)

113. ## [21L.A.224 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-224)

     A declarant who made a declaration of aircraft design compliance in accordance with Subpart C of this Annex may declare compliance of a minor repair…

114. ## [21L.A.225 Declaration of design compliance for minor repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-225)

     Prior to incorporating or embodying or agreeing with a production organisation to incorporate or embody a minor repair design to an aircraft for which…

     [AMC1 21L.A.225(a) Declaration of design compliance for minor repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-225#amc1-21l-a-225-a)

     [AMC1 21L.A.225(b) Declaration of design compliance for minor repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-225#amc1-21l-a-225-b)

     [AMC1 21L.A.225(c) Declaration of design compliance for minor repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-225#amc1-21l-a-225-c)

115. ## [21L.A.226 Declaration of design compliance of major repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-226)

     Prior to incorporating or embodying or agreeing with a production organisation to incorporate or embody a major repair design to an aircraft for which…

     [AMC1 21L.A.226(b) Declaration of design compliance of major repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-226#amc1-21l-a-226-b)

     [GM1 21L.A.226(c) Declaration of design compliance of major repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-226#gm1-21l-a-226-c)

     [AMC1 21L.A.226(e) Declaration of design compliance of major repair designs](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-226#amc1-21l-a-226-e)

116. ## [21L.A.227 Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227)

     Prior to making a declaration of compliance in accordance with point 21L.A.226, the declarant shall, for that specific design:

     [GM1 21L.A.227 Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#gm1-21l-a-227)

     [AMC1 21L.A.227(a) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#amc1-21l-a-227-a)

     [AMC1 21L.A.227(b) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#amc1-21l-a-227-b)

     [AMC1 21L.A.227(c) ;(d);(e) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#amc1-21l-a-227-c)

     [AMC1 21L.A.227(f) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#amc1-21l-a-227-f)

     [GM1 21L.A.227(f) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-227#gm1-21l-a-227-f)

117. ## [Appendix A to AMC1 21L.A.227(a) Compliance activities for declaring compliance of a major repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-227-a)

     MEANS-OF-COMPLIANCE CODES Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:

118. ## [21L.A.228 Obligations of the declarant of a declaration of design compliance of a repair design](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-228)

     The declarant of a declaration of design compliance shall: for minor repair designs maintain a register of those declarations and shall make those…

119. ## [21L.A.229 Unrepaired damage](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-229)

     The declarant of design compliance of an aircraft in accordance with Subpart C of this Annex or an approved design organisation with privileges provided…

     [GM1 21L.A.229 Unrepaired damage](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-229#gm1-21l-a-229)

120. ## [21L.A.241 Permit to fly and flight conditions](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-241)

     The procedures for applying for the issuance of permits to fly and related flight conditions for aircraft within the scope of this Annex shall be those…

     [AMC1 21L.A.241(b)(1) ;(c)(2) Physical inspection and critical design review](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-241#amc1-21l-a-241-b-1)

     [AMC1 21L.A.241(b)(2) ;(c)(1) physical inspection and safety review](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-241#amc1-21l-a-241-b-2)

121. ## [21L.A.251 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-251)

     This Subpart establishes the requirements for the identification of products and parts designed and produced under this Annex.

122. ## [21L.A.252 Design of markings](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-252)

     The holder of a type certificate, supplemental type certificate, approval of a change to type certificate or approval of a repair design, or the…

     [GM1 21L.A.252(b)(2) Identification of parts](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-252#gm1-21l-a-252-b-2)

     [GM1 21L.A.252(b)(2)(iii) Identification of critical parts](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-252#gm1-21l-a-252-b-2-iii)

     [GM1 21L.A.252(c) Identification of parts produced under Subpart R](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-252#gm1-21l-a-252-c)

123. ## [21L.A.253 Identification of products](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-253)

     Any natural or legal person who produces products under Subpart G of Section A of Annex I (Part 21) or under Subpart G or R of this Annex for which the…

124. ## [21L.A.254 Handling of identification data](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-254)

     Any natural or legal person performing maintenance work in accordance with Regulation (EU) No 1321/2014 may, in accordance with methods, techniques and…

125. ## [21L.A.255 Identification of parts](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-255)

     Any natural or legal person who produces parts under Subpart G of Section A of Annex I (Part 21) or under Subpart G or R of this Annex for a product for…

126. ## [21L.A.271 Scope](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-271)

     This Subpart establishes the procedures for the issuance of statements of conformity for aircraft (EASA Form 52B) and authorised release certificates…

127. ## [21L.A.272 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-272)

     Any natural or legal person who is granted access to the applicable design data and is able to undertake the obligations stated in point 21L.A.275 may…

     [AMC1 21L.A.272 Eligibility](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-272#amc1-21l-a-272)

128. ## [21L.A.273 Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273)

     A natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1) with the applicable…

     [GM1 21L.A.273(a) ;(f) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-a)

     [GM2 21L.A.273(a) ;(f) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm2-21l-a-273-a)

     [GM3 21L.A.273(a) ;(f) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm3-21l-a-273-a)

     [GM1 21L.A.273(c) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-c)

     [GM1 21L.A.273(e) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-e)

     [GM1 21L.A.273(f) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-f)

     [GM1 21L.A.273(g) Production control system](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-g)

     [GM1 21L.A.273(h) Production control system and 21L.A.275(e) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-273#gm1-21l-a-273-h)

129. ## [21L.A.274 Issuance of a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-274)

     When issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1), the natural or legal person shall include all…

     [GM1 21L.A.274(b) Issuance of a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-274#gm1-21l-a-274-b)

130. ## [21L.A.275 Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-275)

     The natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1) shall:

     [AMC1 21L.A.275(a) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-275#amc1-21l-a-275-a)

     [GM1 21L.A.275(g) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-275#gm1-21l-a-275-g)

Consolidated from the EASA Easy Access Rules (revision 27 Nov 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.

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