Member States are tasked with designating competent authorities to oversee the implementation of this Directive, with a requirement to inform ESMA and the Commission regarding any division of responsibilities. These designated authorities must be public entities or bodies appointed by such entities.

The supervisory role for UCITS lies primarily with the home Member State's authorities, particularly in alignment with Article 19. However, oversight by the host Member State authorities is also crucial, focusing on compliance with provisions that extend beyond the scope of this Directive, specifically as outlined in Articles 92 and 94.