Guidelines on the implementation of the transparency obligations for certain AI systems under Article 50 of the AI Act — C(2026) 5054 final, Annex

(151) Market surveillance authorities designated by the Member States, the AI Office (47), and the European Data Protection Supervisor (48) are responsible for supervising and enforcing the rules for AI systems falling within their competence, including the transparency obligations laid down in Article 50 AI Act. Such enforcement takes place within the system of market surveillance and compliance of products established by Regulation (EU) 2019/1020 and the AI Act. The enforcement powers of market surveillance authorities in relation to AI systems are laid down in those regulations. Those authorities can take enforcement actions in relation to the obligations listed in Article 50 AI Act on their own initiative or following a complaint, which every affected person or any other natural or legal person having grounds to consider such violations has the right to lodge (49). The responsibilities of the market surveillance authorities under the AI Act do not affect the powers and tasks of other supervisory authorities or fundamental rights authorities under their own legal framework in situations where both Article 50 AI Act and that framework apply (e.g. data protection, consumer protection).