1. The gatekeeper shall ensure and demonstrate compliance with the obligations laid down in Articles 5, 6 and 7 of this Regulation. The measures implemented by the gatekeeper to ensure compliance with those Articles shall be effective in achieving the objectives of this Regulation and of the relevant obligation. The gatekeeper shall ensure that the implementation of those measures complies with applicable law, in particular Regulation (EU) 2016/679, Directive 2002/58/EC, legislation on cyber security, consumer protection, product safety, as well as with the accessibility requirements.

2. The Commission may, on its own initiative or at the request of a gatekeeper pursuant to paragraph 3 of this Article, open proceedings pursuant to Article 20.

The Commission may adopt an implementing act, specifying the measures that the gatekeeper concerned is to implement in order to effectively comply with the obligations laid down in Articles 6 and 7. That implementing act shall be adopted within 6 months from the opening of proceedings pursuant to Article 20 in accordance with the advisory procedure referred to in Article 50(2).