DTO
Declared Training Organisation
Last updated: April 20, 2026 · Maintained by Aviatr Editorial Team
What is DTO?
A DTO (Declared Training Organisation) is a simplified EASA training organisation designation introduced to reduce regulatory burden for providers of PPL, LAPL, and basic class and instructor ratings. DTOs file a declaration with the national aviation authority rather than undergoing the full ATO approval process, making it easier for small flight schools and clubs to legally deliver basic license training.
How is DTO used?
DTOs can deliver PPL, LAPL, and a limited range of class and instructor ratings — but cannot deliver CPL, ATPL, or initial Instrument Rating training (those remain ATO-exclusive under Part-ORA). DTOs are common at local airfields and flying clubs where training volume is modest and the oversight requirements of a full ATO would be disproportionate to the scale of operations. The DTO must still maintain instructor qualifications, aircraft airworthiness, a training manual, and basic safety standards, but the paperwork and compliance overhead is considerably less than an ATO. A pilot earning a PPL at a DTO receives an EASA license of exactly the same standing as one earned at an ATO — the DTO designation affects the training provider's regulatory posture, not the license holder's privileges or career progression options.