26.30 Demonstration of compliance

• Regulation (EU) 2020/1159 found in: CS-26 Additional Airworthiness Specifications for Operations (No 2015/640) Part-26 (Mar 2023)
• Regulation (EU) 2024/2954 found in: CS-26 Additional Airworthiness Specifications for Operations (Part-26) (Oct 2025)

*Regulation (EU) 2020/1159* (a) The Agency shall issue, in accordance with Article 76(3) of Regulation (EU) 2018/1139, certification specifications as standard means to demonstrate compliance with this Annex. The certification specifications shall be sufficiently detailed and specific to indicate the conditions under which compliance with the requirements of this Annex may be demonstrated. #### 26.30 Demonstration of compliance *Regulation (EU) 2024/2954* (a) The Agency shall issue, in accordance with Article 76(3) of [Regulation (EU) 2018/1139](https://eur-lex.europa.eu/eli/reg/2018/1139/oj/eng), certification specifications as standard means to demonstrate compliance with this Annex. The certification specifications shall be sufficiently detailed and specific to indicate the conditions under which compliance with the requirements of this Annex may be demonstrated. (b) Aircraft operators and holders of a TC, restricted TC, STC, design change approval, or repair design approval may demonstrate compliance with the requirements of this Annex by complying with either of the following: (i) the specifications issued by the Agency under point (a) or the equivalent certification specifications issued by the Agency under point 21.B.70 of Annex I (Part 21) to [Regulation (EU) No 748/2012](https://eur-lex.europa.eu/eli/reg/2012/748/oj/eng); (ii) technical standards offering an equivalent level of safety to that of the standards included in those certification specifications. (c) Holders of a TC, restricted TC, STC, design change approval, or repair design approval shall make available any change to the instructions for continued airworthiness (“ICA”) developed for the purpose of ensuring compliance with this Annex to all known operators of the affected aircraft and, on request, to any other person required to comply with such instructions, including continuing airworthiness management organisations. For the purposes of this Regulation, the ICA also include damage tolerance inspections (“DTIs”), repair evaluation guidelines (“REGs”), a baseline corrosion prevention and control programme (“CPCP”) and a list of fatigue-critical structures (“FCSs”) and airworthiness limitation sections (“ALSs”).