Official Publication: Certification Specifications (CSs) / Detailed Specifications (DSs)

Initial Airworthiness and Environmental Protection
AMC-20 General Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances
Publication date Title
22/12/2006 AMC-20 Amendment 1
Certification Specification (CS)
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05/11/2003 AMC-20 Initial issue
Certification Specification (CS)
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CS-22 Sailplanes and Powered Sailplanes
Publication date Title
17/09/2021 CS-22 Amendment 3
Certification Specification (CS)
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The file was replaced on 21/02/2022. The correction is highlighted in yellow

30/03/2009 CS-22 Amendment 2
Certification Specification (CS)
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The file was replaced on 21/02/2022. The correction is highlighted in yellow

24/09/2008 CS-22 Amendment 1
Certification Specification (CS)
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The file was replaced on 21/02/2022. The correction is highlighted in yellow

14/11/2003 CS-22 Initial issue
Certification Specification (CS)
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The file was replaced on 21/02/2022. The correction is highlighted in yellow

CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes
Publication date Title
30/09/2025
Regular update of the Certification Specifications for Normal-Category Aeroplanes
Amendment to Issue 4 of the AMC & GM to CS-23
Certification Specification (CS)
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07/03/2023
Normal-Category Aeroplanes (CS-23)
CS-23 Amendment 6 and AMC & GM to CS-23 Issue 4
Certification Specification (CS)
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01/07/2020
Aircraft cybersecurity
CS-23 Amendment 5 and AMC & GM to CS-23 Issue 3
Certification Specification (CS)
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08/10/2019 AMC & GM to CS-23 Issue 2
Certification Specification (CS)
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The file was replaced on 6/11/2019. The corrections are highlighted with yellow.

20/12/2017
Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Certification Specifications for Normal-Category Aeroplanes (CS-23)
AMC & GM to CS-23 Issue 1
Certification Specification (CS)
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31/03/2017
Reorganisation of CS-23
CS-23 Amendment 5
Certification Specification (CS)
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16/07/2015
High-Intensity Radiated Fields (HIRF) and Lightning
CS-23 Amendment 4
Certification Specification (CS)
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13/07/2012 CS-23 Amendment 3
Certification Specification (CS)
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28/09/2010 CS-23 / Amendment 2 corrigendum
Certification Specification (CS)
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02/09/2010 CS-23 Amendment 2
Certification Specification (CS)
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05/02/2009 CS-23 Amendment 1
Certification Specification (CS)
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14/11/2003 CS-23 Initial issue
Certification Specification (CS)
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CS-25 Large Aeroplanes
Publication date Title
19/12/2023 CS-25 Amendment 28
Certification Specification (CS)
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The file was replaced on 20/11/2025. The correction (page 1171) is highlighted with yellow.

06/12/2021
Review of aeroplane performance requirements for air operations and Regular update of CS-25
CS-25 Amendment 27
Certification Specification (CS)
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The file was replaced on 20/11/2025. The corrections (pages 192, 466, 571, 428, 1074, and 1230) are highlighted with yellow.

22/12/2020
Installation and maintenance of recorders — cert aspects; Tyre pressure monitoring; Regular update of CS-25
CS-25 Amendment 26
Certification Specification (CS)
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01/07/2020
Aircraft cybersecurity
CS-25 Amendment 25
Certification Specification (CS)
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13/01/2020 CS-25 Amendment 24
Certification Specification (CS)
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16/07/2019 CS-25 Amendment 23
Certification Specification (CS)
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document was replaced on 12/11/2019 (correction of Figure 8 -1 running over text on page 2-D-109)

06/11/2018 CS-25 Amendment 22
Certification Specification (CS)
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replaced on 12/11/2018 without change to its content 

27/03/2018 CS-25 Amendment 21
Certification Specification (CS)
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replaced on 12/11/2018 without change to its content

30/08/2017 CS-25 Amendment 20
Certification Specification (CS)
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15/05/2017 CS-25 Amendment 19
Certification Specification (CS)
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23/06/2016 CS-25 Amendment 18
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

16/07/2015 CS-25 Amendment 17
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

12/03/2015 CS-25 Amendment 16
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

22/07/2014 CS-25 Amendment 15
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

19/12/2013 CS-25 Amendment 14
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

17/06/2013 CS-25 Amendment 13
Certification Specification (CS)
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replaced on 16/02/2017 without change to its content

06/07/2012 CS-25 Amendment 12
Certification Specification (CS)
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27/06/2011 CS-25 Amendment 11
Certification Specification (CS)
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16/12/2010 CS-25 Amendment 10
Certification Specification (CS)
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05/08/2010 CS-25 Amendment 9
Certification Specification (CS)
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11/12/2009 CS-25 Amendment 8
Certification Specification (CS)
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14/10/2009 CS-25 Amendment 7
Certification Specification (CS)
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26/06/2009 CS-25 Amendment 6
Certification Specification (CS)
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29/08/2008 CS-25 Amendment 5
Certification Specification (CS)
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20/12/2007 CS-25 Amendment 4
Certification Specification (CS)
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12/09/2007 CS-25 Amendment 3
Certification Specification (CS)
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25/09/2006 CS-25 Amendment 2
Certification Specification (CS)
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12/12/2005 CS-25 Amendment 1
Certification Specification (CS)
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17/10/2003 CS-25 Initial issue
Certification Specification (CS)
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CS-27 Small Rotorcraft
Publication date Title
07/02/2023
Regular update of the Certification Specifications for Small Rotorcraft (CS-27)
CS-27 Amendment 10
Certification Specification (CS)
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The file was replaced on 04/10/2023  (corrections on pages: 41, 48, 72, 81, 159, 182, 189, 246, 260, 279, 291 and 303 are highlighted in yellow)  and on 15/09/2025 (correction page 13 highlighted in yellow).

17/12/2021
Rotorcraft chip detection systems and Rotorcraft occupant safety in the event of a bird strike
CS-27 Amendment 9
Certification Specification (CS)
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16/06/2021 CS-27 Amendment 8
Certification Specification (CS)
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