Skip to content

A gradual release of Avioverse begins in October 2026. Request early access →

SECTION B - PROCEDURES FOR COMPETENT AUTHORITIES

Annex Ib · Initial Airworthiness and Environmental Protection · Regulation (EU) No 748/2012 · 21L.B.11 – 21L.B.253

On this page
  1. 21L.B.11 Oversight documentation

    The competent authority shall provide all the legislative acts, standards, rules, technical publications, and related documents to the relevant personnel…

  2. 21L.B.12 Exchange of information

    The competent authority of the Member State and the Agency shall share the information available to them through their investigation conducted and…

    GM1 21L.B.12 Exchange of information

    GM2 21L.B.12 Exchange of information

  3. 21L.B.13 Information to the Agency

    The competent authority of the Member State shall notify the Agency in case of any significant problems with the implementation of Regulation (EU)…

    AMC1 21L.B.13(b) Information to the Agency

    GM1 21L.B.13(b) Information to the Agency

    GM2 21L.B.13(b) Information to the Agency

    GM3 21L.B.13(b) Information to the Agency

  4. 21L.B.14 Airworthiness directives received from non-Member States

    When the competent authority of a Member State receives an airworthiness directive from the competent authority of a non-Member State, that airworthiness…

  5. 21L.B.15 Immediate reaction to a safety problem

    Without prejudice to Regulation (EU) No 376/2014 and its delegated and implementing acts, the competent authority of the Member State shall implement a…

  6. 21L.B.16 Management system

    The competent authority shall establish and maintain a management system, including as a minimum:

    AMC1 21L.B.16 Management system

    AMC2 21L.B.16 Management system

    GM1 21L.B.16 Management system

    AMC1 21L.B.16(a)(1) Management system

    GM1 21L.B.16(a)(2) Management system

    AMC1 21L.B.16(a)(3) Management system

    AMC2 21L.B.16(a)(3) Management system

    AMC3 21L.B.16(a)(3) Management system

    AMC1 21L.B.16(a)(5) Management system

    GM1 21L.B.16(a)(5) Management system

    AMC1 21L.B.16(d) Management system

  7. 21L.B.17 Allocation of tasks to qualified entities

    A competent authority may allocate the tasks related to the initial certification or to the continuing oversight of products and parts, and of natural or…

    GM1 21L.B.17 Allocation of tasks to qualified entities

  8. 21L.B.18 Changes in the management system

    The competent authority shall have a system in place to identify changes that affect its capability to perform its tasks and discharge its…

  9. 21L.B.19 Resolution of disputes

    The competent authority of the Member State shall establish a process for the resolution of disputes within its documented procedures.

    GM1 21L.B.19 Resolution of disputes

  10. 21L.B.20 Record-keeping

    The competent authority shall establish a system of record-keeping that allows the adequate storage, accessibility, and reliable traceability of:

    AMC1 21L.B.20(a) Record-keeping

    AMC1 21L.B.20(a)(1) ;(a)(2) Record-keeping

  11. 21L.B.21 Findings and observations

    When the competent authority, during investigation or oversight or by any other means, detects a non-compliance with the applicable requirements of…

    AMC1 21L.B.21(c) Findings and corrective actions

    GM1 21L.B.21(f) Findings and observations

  12. 21L.B.22 Enforcement measures

    The competent authority shall: suspend a certificate if the competent authority considers that there are reasonable grounds that such action is necessary…

    GM1 21L.B.22 Enforcement measures

    GM1 21L.B.22 Enforcement measures

  13. 21L.B.23 Airworthiness directives

    An airworthiness directive means a document issued or adopted by the Agency which mandates actions to be performed on an aircraft to restore an…

    AMC1 21L.B.23(b) Airworthiness directives

    GM1 21L.B.23(b) Airworthiness directives

  14. 21L.B.24 Means of compliance

    The Agency shall develop acceptable means of compliance (‘AMC’) that may be used to establish compliance with Regulation (EU) 2018/1139 and the delegated…

    GM1 21L.B.24 Means of compliance

    AMC1 21L.B.24(a) ;(b) Means of compliance

    GM1 21L.B.24(b) ;(c) Means of compliance

  15. 21L.B.41 Certification specifications

    The Agency, in accordance with Article 76(3) of Regulation (EU) 2018/1139, shall issue certification specifications and other detailed specifications…

  16. 21L.B.42 Initial investigation

    Upon receiving an application for a type certificate under this Annex, the Agency shall verify whether the product is within the scope established in…

  17. 21L.B.43 Type-certification basis for a type certificate

    The Agency shall establish the type-certification basis and notify it to the applicant.

    GM1 21L.B.43(a) Type-certification basis for a type certificate

  18. 21L.B.44 Special conditions

    The Agency shall prescribe special detailed technical specifications, named ‘special conditions’, for a product if the related certification…

    GM1 21L.B.44 Special conditions

  19. 21L.B.45 Designation of the applicable environmental protection requirements for a type certificate

    The Agency shall designate and notify to the applicant for a type certificate for an aircraft or for an engine, the applicable environmental requirements…

  20. 21L.B.46 Investigation

    Upon receiving an application for a type certificate under this Annex, the Agency shall:

    AMC1 21L.B.46(c) Investigation

    AMC2 21L.B.46(c) Investigation

  21. 21L.B.47 Issuance of a type certificate

    The Agency shall issue without undue delay an aircraft, engine or propeller type certificate, provided that:

  22. 21L.B.48 Continuing airworthiness oversight of products for which a type certificate has been issued

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  23. 21L.B.49 Transfer of a type certificate

    When the Agency receives an application for verification of whether a type certificate can be transferred by its holder in accordance with point 21L.A.29…

  24. 21L.B.61 Detailed technical specifications and applicable environmental protection requirements for declarations of product design compliance

    The Agency, in accordance with Article 76(3) of Regulation (EU) 2018/1139, shall establish and make available the detailed technical specifications that…

    GM1 21L.B.61(b) Detailed technical specifications for declarations of design compliance

    GM1 21L.B.61(c)(1) Detailed technical specifications and applicable environmental protection requirements for declarations of design compliance

  25. 21L.B.62 Initial oversight investigation

    Upon receiving a declaration of design compliance, the Agency shall verify that the aircraft is within the scope of Subpart C of Section A of this Annex…

    AMC 21L.B.62(b) Physical inspection and assessment of the first article of a given aircraft in the final configuration (first-article inspection) prior to the registration of a declaration of design compliance

  26. 21L.B.63 Registration of a declaration of design compliance

    The Agency shall register a declaration of design compliance for an aircraft provided that:

    GM1 21L.B.63(b) Registration of a declaration of design compliance

  27. 21L.B.64 Continuing airworthiness oversight of aircraft for which design compliance has been declared

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  28. 21L.B.81 Type-certification basis and applicable environmental protection requirements for a major change to a type certificate

    The Agency shall establish the type-certification basis for a major change to a type certificate and notify it to the applicant.

  29. 21L.B.82 Investigation and issuance of an approval of a minor change to a type certificate

    Upon receiving an application for the approval of a minor change to a type certificate under this Annex, the Agency shall approve the minor change when:

  30. 21L.B.83 Investigation of a major change to a type certificate

    Upon receiving an application for a major change to a type certificate under this Annex, the Agency shall:

    AMC1 21L.B.83(c) Investigation of a major change to a type certificate

    AMC1 21L.B.83(d) Investigation of a major change to a type certificate

  31. 21L.B.84 Issuance of an approval of a major change to a type certificate

    The Agency shall approve the major change when: the applicant has demonstrated that the change and the areas affected by the change comply with the…

  32. 21L.B.85 Continuing airworthiness oversight of changed products for which a type certificate has been issued

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  33. 21L.B.101 Type-certification basis and applicable environmental protection requirements for a supplemental type certificate

    The Agency shall establish the type-certification basis for a supplemental type certificate and notify it to the applicant.

  34. 21L.B.102 Investigation

    Upon receiving an application for a supplemental type certificate under this Annex, the Agency shall:

    AMC1 21L.B.102(c) Investigation

    AMC1 21L.B.102(d) Investigation

  35. 21L.B.103 Issuance of a supplemental type certificate

    Upon receiving an application for a supplemental type certificate under this Annex, the Agency shall issue a supplemental type certificate when:

  36. 21L.B.104 Continuing airworthiness oversight of products for which a supplemental type certificate has been issued

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  37. 21L.B.121 Initial oversight investigation of a declaration of design compliance of a major change to the design of an aircraft for which design compliance has been declared

    Upon receiving a declaration of design compliance for a major change to the design of an aircraft for which design compliance has been declared, the…

    AMC1 21L.B.121 Initial oversight investigation of a declaration of design compliance of a major change to the design of an aircraft for which design compliance has been declared

  38. 21L.B.122 Registration of a declaration of design compliance for a major change to an aircraft design

    The Agency shall register a declaration of design compliance for a major change to the design of an aircraft for which design compliance has been…

  39. 21L.B.123 Continuing airworthiness oversight of a changed aircraft for which design compliance has been declared

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  40. 21L.B.141 Initial oversight investigation

    Upon receiving a declaration from an organisation declaring their production capability, the competent authority shall verify that:

    AMC1 21L.B.141 Initial oversight investigation

  41. 21L.B.142 Registration of a declaration of production capability

    The competent authority shall register the declaration of production capability on a suitable database, including the declared scope of work, provided…

    AMC1 21L.B.142 Registration of a declaration of production capability

  42. 21L.B.143 Oversight

    The competent authority shall oversee the declared production organisation in order to verify the continuous compliance of the declared production…

    AMC1 21L.B.143(b) Oversight

  43. 21L.B.144 Oversight programme

    The competent authority shall establish and maintain an oversight programme in order to ensure compliance with point 21L.B.143.

    AMC1 21L.B.144 and 21L.B.184 Oversight programme

    AMC1 21L.B.144(a) and 21L.B.184(a) Oversight programme

    AMC2 21L.B.144(a) and 21L.B.184(a) Oversight programme

    GM1 21L.B.144(a) Oversight programme

    AMC1 21L.B.144(d) ;(e) and 21L.B.184(d);(e) Oversight programme

    AMC1 21L.B.144 and 221L.B.184 Oversight programme

    AMC1 21L.B.144(a) and 21L.B.184(a) Oversight programme

    AMC2 21L.B.144(a) and 21L.B.184(a) Oversight programme

    AMC1 21L.B.144(d) ;(e) and 21L.B.184(d);(e) Oversight programme

  44. 21L.B.145 Oversight activities

    When the competent authority verifies the compliance of the declared production organisation in accordance with point 21L.B.143 and the oversight…

  45. 21L.B.146 Changes to declarations

    Upon receiving a notification of changes in accordance with point 21L.A.128, the competent authority shall verify the completeness of the notification in…

  46. 21L.B.161 Investigation

    The competent authority of the Member State of registry shall establish procedures for its investigations, covering at least the following elements:

    GM1 21L.B.161(a)(6) Investigation

    GM1 21L.B.161(c) Investigation

  47. 21L.B.162 Issuance or amendment of a certificate of airworthiness or a restricted certificate of airworthiness

    The competent authority of the Member State of registry shall issue or amend a certificate of airworthiness (EASA Form 25, see Appendix VI to Annex I…

    GM1 21L.B.162(b) Issuance or amendment of a certificate of airworthiness or a restricted certificate of airworthiness

    GM1 21L.B.162(d) Issuance or amendment of a certificate of airworthiness or a restricted certificate of airworthiness

  48. 21L.B.163 Oversight

    Upon evidence of a violation of any of the conditions under which the certificate of airworthiness or the restricted certificate of airworthiness was…

  49. 21L.B.171 Investigation

    The competent authority of the Member State of registry shall prepare procedures for its investigations, covering at least the following elements:

    GM1 21L.B.171(c) Investigation

  50. 21L.B.172 Issuance or amendment of noise certificates

    The competent authority of the Member State of registry shall issue or amend noise certificates (EASA Form 45, see Appendix VII to Annex I (Part 21)) and…

    AMC1 21L.B.172(a) Issuance or amendment of noise certificates

  51. 21L.B.173 Oversight

    Upon evidence of a violation of any of the conditions under which the noise certificate or the restricted noise certificate was issued, or that the…

  52. 21L.B.181 Initial oversight investigation

    Upon receiving a declaration from an organisation declaring their design capability, the Agency shall verify that:

    AMC1 21L.B.181 Initial oversight investigation

  53. 21L.B.182 Registration of a declaration of design capability

    The Agency shall register the declaration of design capability on a suitable database, including the declared scope of work, provided that:

    AMC1 21L.B.182 Registration of a declaration of production capability

  54. 21L.B.183 Oversight

    The Agency shall oversee the declared design organisation in order to verify the continuous compliance of the organisation with the applicable…

    GM1 21L.B.183(b) Oversight

  55. 21L.B.184 Oversight programme

    The Agency shall establish and maintain an oversight programme in order to ensure compliance with point 21L.B.183.

    GM1 21L.B.184(a) Oversight programme

  56. 21L.B.185 Oversight activities

    When the Agency verifies the compliance of the declared design organisation in accordance with point 21L.B.183 and the oversight programme established in…

  57. 21L.B.186 Changes to declarations

    Upon receiving a notification of changes in accordance with point 21L.A.178, the Agency shall verify the completeness of the notification in accordance…

  58. 21L.B.201 Type-certification basis and applicable environmental protection requirements for a repair design approval

    The Agency shall designate any amendments to the type-certification basis and the applicable environmental requirements incorporated by reference in, as…

  59. 21L.B.202 Investigation and issuance of an approval for a minor repair design

    Upon receiving an application for the approval of a minor repair design to a type-certified product under this Annex, the Agency shall approve the minor…

  60. 21L.B.203 Investigation of an application for the approval of a major repair design

    Upon receiving an application for the approval of a major repair design under this Annex, the Agency shall:

    AMC1 21L.B.203(d) Investigation of an application for the approval of a major repair design

  61. 21L.B.204 Issuance of an approval of a major repair design

    Upon receiving an application for the approval of a major repair design to a type-certified product under this Annex, the Agency shall approve the major…

  62. 21L.B.205 Continuing airworthiness oversight of products for which a repair design has been approved

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other means…

  63. 21L.B.206 Unrepaired damage

    An evaluation of the airworthiness consequences shall be conducted by the Agency, when requested to do under point 21L.A.211, in the event that a damaged…

  64. 21L.B.221 Initial oversight investigation of a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared

    Upon receiving a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared, the Agency shall…

    AMC1 21L.B.221 Initial oversight investigation of a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared

  65. 21L.B.222 Registration of a declaration of a major repair design to an aircraft for which design compliance has been declared

    The Agency shall register a declaration of a major repair design to an aircraft for which design compliance has been declared provided that:

  66. 21L.B.223 Continuing airworthiness oversight of a repair design for which design compliance has been declared

    If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other…

  67. 21L.B.241 Investigation prior to the issuance of a permit to fly

    Without prejudice to Subpart P of Section B of Annex I (Part 21), when investigating an application for the issuance of a permit to fly for an aircraft…

    AMC 21L.B.241(a)(1) and 21L.B.242(a)(1) Critical design review of the design and physical inspection and assessment of the aircraft

    AMC 21L.B.241(a)(2) and 21L.B.242(a)(2) Physical inspection and assessment of the aircraft in order to ensure that the aircraft is capable of safe flight, and that flight testing can be conducted safely (physical inspection and safety review)

    AMC 21L.B.241(a)(1) and 21L.B.242(a)(1) Critical design review of the design and physical inspection and assessment of the aircraft

    AMC 21L.B.241(a)(2) and 21L.B.242(a)(2) Physical inspection and assessment of the aircraft in order to ensure that the aircraft is capable of safe flight, and that flight testing can be conducted safely (physical inspection and safety review)

  68. 21L.B.242 Investigation prior to issuance of the flight conditions

    Without prejudice to Subpart P of Section B of Annex I (Part 21), when investigating an application for the approval of flight conditions for an aircraft…

  69. 21L.B.251 Oversight

    The competent authority shall oversee the natural or legal person issuing statements of conformity (EASA Form 52B) or authorised release certificates…

    AMC1 21L.B.251(b) Oversight

  70. 21L.B.252 Oversight programme

    The competent authority shall establish and maintain an oversight programme in order to ensure compliance with point 21L.B.251.

    AMC1 21L.B.252 Oversight programme

    GM1 21L.B.252(d) ;(e) Oversight programme

  71. 21L.B.253 Oversight activities

    When the competent authority verifies the compliance of the natural or legal person in accordance with point 21L.B.251 and the oversight programme…

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.

Ask Metis about 21L.B.11 – 21L.B.253 →

Metis opens with Avioverse in October 2026 · request early access.

ShareLinkedInX