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Normal-Category Aeroplanes (CS-23) · CS-23 · EAR revision 13 May 2026
IRImplementing rule
An applicant who requests certification for flight in icing conditions must show the following in the icing conditions for which certification is requested:
(a)the ice protection system provides for safe operation; and
(b)the aeroplane design must provide protection from stalling when the autopilot is operating.
IR · CS 23.2540 — CS-23 · ED Decision 2017/013/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
ASTM F44 F3264 Standard Specification for Normal Category Aeroplanes Certification
9.9 Flight in Icing Conditions F3061/F3061M-24a Standard Specification for Systems and Equipment in Small Aircraft F3233/F3233M-23b Standard Specification for Flight and Navigation Instrumentation in Aircraft F3120/F3120M-20 Standard Specification for Ice Protection for General Aviation Aircraft [AMC & GM to CS-23: Issue 4] [AMC & GM to CS-23: Issue 5]
AMC · AMC1 23.2540 — CS-23 · ED Decision 2026/003/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
CS-23 Amdt 4
23.1323 Airspeed indicating system
23.1325(b), (g) Static pressure system
23.775(f) Windshields and windows
Remarks Following the cancellation of FAA AC-1419-2D, applicants should now use the icing conditions that are outlined in AMC1 23.2165.
AMC · AMC2 23.2540 — CS-23 · ED Decision 2023/002/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
None
AMC · AMC3 23.2540 — CS-23 · ED Decision 2017/025/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
Consolidated from the EASA Easy Access Rules (revision 13 May 2026, 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.
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