ETSO Authorisations are issued in accordance with Part 21, Section A, Subpart O of Commission Regulation (EC) No 748/2012.
European Aviation Safety Agency (EASA)
Parts & Appliances Section
Postfach 10 12 53
D-50452 Köln Germany
Email: ETSOA [at] easa [dot] europa [dot] eu
Please use Form 34 for the application for an ETSO Authorisation.
After request by the Agency technical data can be electronically submitted using the EASA Filebox service.