Initial Airworthiness and Environmental Protection

Acceptable Means of Compliance (AMC) and Guidance Material (GM)
Part 21 - Airworthiness and Environmental Certification
Publication date Title
13/08/2025 Implementation of the latest CAEP amendments to ICAO Annex 16 Volumes I, II and III – CAEP/12 | Awareness of Regulation (EU) 2015/640 provisions applicable to design approval holders AMC/GM to Part 21 — Issue 2, Amendment 17 view
20/10/2023 AMC & GM to Part 21 — Issue 2, Amendment 16 view
13/07/2023 AMC & GM to Part 21 — Issue 2, Amendment 15 view
19/12/2022 Embodiment of safety management system and occurrence-reporting requirements into Part 21 — Amendment to the Acceptable Means of Compliance and Guidance Material to Part 21 AMC & GM to Part 21 — Issue 2, Amendment 14 view
14/07/2021 Implementation of the latest CAEP amendments to ICAO Annex 16 Volumes I, II, and III — CAEP/11 AMC & GM to Part 21 — Issue 2, Amendment 13 view
28/05/2021 instructions for continued airworthiness (ICAs); installation of parts without an EASA Form 1; Ageing aircraft structures AMC & GM to Part 21 — Issue 2, Amendment 12 view
19/03/2021 Regular update of AMC & GM Part 21 AMC & GM to Part 21 — Issue 2, Amendment 11 view

The file was replaced on 19/03/2021. The correction is highlighted with yellow.

01/07/2020 Aircraft cybersecurity AMC & GM to Part 21 — Issue 2, Amendment 10 view
29/08/2019 AMC & GM to Part 21 — Issue 2, Amendment 9 view

The file was replaced on 06/12/2019. The corrections are highlighted with yellow.

13/02/2019 PART-21 proportionality’ Introduction of proportionality and simplification of airworthiness and environmental certification regulations for small aircraft AMC & GM to Part 21 — Issue 2, Amendment 8 view
14/12/2017 Regular update of the Acceptable Means of Compliance and Guidance Material to Annex I (Part-21) AMC & GM to Part 21 — Issue 2, Amendment 7 view
26/04/2016 Changes to operational suitability data (OSD) AMC & GM to Part 21 — Issue 2, Amendment 6 view
12/01/2016 Implementation of CAEP/9 amendments AMC & GM to Part-21 — Issue 2, Amendment 5 view
10/11/2015 Flight Testing AMC & GM to Part-21 — Issue 2, Amendment 4 view
09/07/2015 CS for Standard Changes and Standard Repairs (CS-STAN) – Phase 1 AMC & GM to Part 21 — Issue 2, Amendment 3 view
31/01/2014 Operational Suitability Data (OSD) AMC & GM to Part 21 — Issue 2, Amendment 2 view
23/01/2013 Implementation of CAEP/8 AMC & GM to Part 21 — Issue 2, Amendment 1 view
30/10/2012 AMC & GM to Part 21 — Issue 2 view
01/12/2011 Establishment of type-certification basis of changed aeronautical products|Improved Guidance to GM 21A.101 AMC & GM to Part 21 — Issue 1, Amendment 9 view
19/08/2011 Environmental protection - classification of changes to a type design AMC & GM to Part 21 — Issue 1, Amendment 8 view