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. Use of Form 35 was discontinued, as the DDP contains all the necessary information provided by Form 35 in the past.
After request by the Agency technical data can be electronically submitted using the EASA Filebox service.