4. The Commission is empowered to adopt delegated acts in accordance with Article 10 in order to amend paragraph 3 of this Article by updating the reference to European standard EN 301 549 V1.1.2 (2015-04) so as to make reference to a more recent version of that standard, or to a European standard replacing it, where that version or standard meets the accessibility requirements set out in Article 4 and ensures at least a level of accessibility equivalent to that ensured by European standard EN 301 549 V1.1.2 (2015-04).