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ETSO Authorisations are issued in accordance with Part 21, Section A, Subpart O of Commission Regulation (EC) No 748/2012.

Please use the applicant portal for the application for an ETSO Authorisation.

If the application is accepted, the applicant will receive an acceptance mail with further instructions how to provide  documents to the Agency and with the contact details of the Project Certification Manager (PCM) of the project.

Use of Form 34 was discontinued, as the applicant portal provides an standardized way to provide the information in an electronically readable format. Use of Form 35 was discontinued, as the DDP contains all the necessary information provided by Form 35 in the past.

European Union Aviation Safety Agency (EASA)
Parts & Appliances Section
Postfach 10 12 53
D-50452 Köln Germany
Email: ETSOA [at]