Certification Specifications (CSs) / Detailed Specifications (DSs)

Latest amendments/consolidated CSs
Publication date Title Certification Specifications / Detailed Specifications group Regulation group
07/02/2023
Regular update of the Certification Specifications for Small Rotorcraft (CS-27)
CS-27 Amendment 10
Certification Specification (CS)
CS-27 Small Rotorcraft Initial Airworthiness and Environmental Protection view

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).

07/02/2023
Regular update of the Certification Specifications for Large Rotorcraft (CS-29)
CS-29 Amendment 11
Certification Specification (CS)
CS-29 Large Rotorcraft Initial Airworthiness and Environmental Protection view

The file was replaced on 04/10/2023 (corrections on pages:  40, 42, 43, 46, 49, 75, 86, 87, 179, 180, 223, 238, 292, 293, 294, 296, 297, 306, 320, 365, 366, 378, and 379 are highlighted in yellow) and on 15/09/2025 (correction page 15 highlighted in yellow).

 

19/09/2022
Large aeroplane tyre pressure monitoring | Helicopter ditching and water impact occupant survivability
CS-26 Issue 4
Certification Specification (CS)
CS-26 Additional airworthiness specifications for operations Additional Airworthiness Specifications view
31/08/2022 CS-ETSO Amendment 17
Certification Specification (CS)
CS-ETSO European Technical Standard Orders Initial Airworthiness and Environmental Protection view
08/06/2022 CS-AWO Issue 2
Certification Specification (CS)
CS-AWO All Weather Operations view

The file was replaced on 08/06/2022. The correction (page 167) is highlighted with yellow.

27/04/2022
Regular update of CS-STAN
CS-STAN Issue 4
Certification Specification (CS)
CS-STAN Standard Changes and Standard Repairs Initial Airworthiness and Environmental Protection view

The file was replaced on 28/04/2022. Correction of several ‘Error! Reference source not found’ occurrences.

05/04/2022 CS-ACNS Issue 4
Certification Specification (CS)
CS-ACNS Airborne Communications, Navigation and Surveillance Airspace Usage Requirements (AUR) view
29/03/2022
Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN)
CS-ADR-DSN Issue 6
Certification Specification (CS)
CS-ADR-DSN Aerodromes Design Aerodromes (ADR) view

The file was replaced on 16/06/2025. The corrections (page 314) are highlighted in yellow.

15/02/2022 CS-SIMD Issue 2
Certification Specification (CS)
CS-SIMD Simulator Data view
26/01/2022
AMC 20-136A Aircraft electrical and electronic system lightning protection; AMC 20-158A Aircraft electrical and electronic system high-intensity radiated fields (HIRF) protection; AMC 20-193 Use of multi-core processors (MCPs)
AMC-20 Amendment 23
Certification Specification (CS)
AMC-20 General Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances Initial Airworthiness and Environmental Protection view
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)
CS-27 Small Rotorcraft Initial Airworthiness and Environmental Protection view
06/12/2021
Review of aeroplane performance requirements for air operations and Regular update of CS-25
CS-25 Amendment 27
Certification Specification (CS)
CS-25 Large Aeroplanes Initial Airworthiness and Environmental Protection view

The file was replaced on 20/11/2025. The corrections (pages 192, 466, 571, 428, 1074, and 1230) are highlighted with yellow.

17/09/2021 CS-22 Amendment 3
Certification Specification (CS)
CS-22 Sailplanes and Powered Sailplanes Sailplanes – Air Operations view

The file was replaced on 21/02/2022. The correction is highlighted in yellow

16/09/2021 CS-FCD Issue 2
Certification Specification (CS)
CS-FCD Flight Crew Data Initial Airworthiness and Environmental Protection view

The file was replaced on 3/11/2023. The corrections are shown in the document ‘CS-FCD Issue 2 – For information’.

14/07/2021
Implementation of the latest CAEP amendments to ICAO Annex 16 Volumes I, II, and III — CAEP/11
CS-34 Amendment 4
Certification Specification (CS)
Repealed
CS-34(repealed) Aircraft Engine Emissions and Fuel Venting Initial Airworthiness and Environmental Protection view

The file was replaced on 04/05/2022. The correction is highlighted with yellow.

14/07/2021
Implementation of the latest CAEP amendments to ICAO Annex 16 Volumes I, II, and III — CAEP/11
CS-36 Amendment 6
Certification Specification (CS)
Repealed
CS-36(repealed) Aircraft Noise Initial Airworthiness and Environmental Protection view
14/07/2021
Implementation of the latest CAEP amendments to ICAO Annex 16 Volumes I, II, and III — CAEP/11
CS-CO2 Issue 2
Certification Specification (CS)
Repealed
CS-CO2(repealed) Certification Specifications, Acceptable Means of Compliance and Guidance Material for Aeroplane CO2 Emissions (CS-CO2) Initial Airworthiness and Environmental Protection view
16/06/2021 CS-27 Amendment 8
Certification Specification (CS)
CS-27 Small Rotorcraft Initial Airworthiness and Environmental Protection view
16/06/2021 CS-29 Amendment 9
Certification Specification (CS)
CS-29 Large Rotorcraft Initial Airworthiness and Environmental Protection view

The file was replaced on 27/08/2021. The corrections are highlighted in yellow.

31/05/2021 CS-ACNS Issue 3
Certification Specification (CS)
CS-ACNS Airborne Communications, Navigation and Surveillance Airspace Usage Requirements (AUR) view

The file was replaced on 22/10/2021. The corrections are highlighted.