EASA is the competent authority for the DAT providers. Following the certification process, upon receiving an application for the issuance of a certificate to a DAT provider, EASA needs to verify the DAT provider's compliance with the applicable requirements of Regulation (EU) 2017/373. In this context, EASA may require any audits, inspections or assessments it finds necessary before issuing the certificate. The certificate shall be issued for an unlimited duration. The privileges of the activities that the DAT provider is approved to conduct are specified in the service provision conditions attached to the certificate.
In accordance with ATM/ANS.OR.A.025, DAT provider's certificate shall remain valid subject to:
(1) the DAT provider remaining in compliance with the applicable requirements of Regulation (EU) 2017/373, including those concerning facilitating and cooperating for the purposes of the exercise of the powers of the competent authorities and those concerning the handling of findings as specified in points ATM/ANS.OR.A.050 and ATM/ANS.OR.A.055 respectively;
(2) the certificate not having been surrendered, suspended or revoked.
Having mentioned this, it could be concluded that EASA is the competent authority for the oversight of DAT providers in addition to its duties for the issuing of respective DAT providers’ certificates.