Translate the following English sentence to French:
"Operators should have the responsibility for training, but this should be done on a harmonised basis, with a distinct, uniform, European-wide certification system which would be accepted by all Member States."
Les exploitants doivent assumer la responsabilité de la formation, mais celle-ci doit être harmonisée, avec un processus de certification européen uniforme et distinct qui soit accepté par tous les États membres.