Article 10 9.

Existing certificates and training attestations issued in accordance with Regulation (EU) No 517/2014 shall remain valid, in accordance with the conditions under which they were originally issued. By 12 March 2027, Member States shall ensure that certified natural persons are required to participate in refresher courses or complete an evaluation process referred to in paragraph 3, at least every 7 years. Member States shall ensure that natural persons who hold a certificate or training attestation under Regulation (EU) No 517/2014 shall participate in such refresher courses or complete such evaluation processes for the first time no later than 12 March 2029.