3.   The Commission shall, after having consulted the relevant stakeholders, adopt an implementing act detailing the technical arrangements for the effective implementation of the scheme referred to in paragraph 1 of this Article, including a timeline for a non-committal test phase at national level, and clarifying the complementary relation of the scheme to the energy performance certificates referred to in Article 19.

That implementing act shall be adopted in accordance with the examination procedure referred to in Article 33(3).

4.   Provided that the Commission has adopted the delegated act referred to in paragraph 2, it shall, by 30 June 2027, adopt an implementing act detailing the technical arrangements for the effective implementation of the application of the scheme referred to in paragraph 2 to non-residential buildings with an effective rated output for heating systems, air-conditioning systems, systems for combined space heating and ventilation, or systems for combined air-conditioning and ventilation of over 290 kW.

That implementing act shall be adopted in accordance with the examination procedure referred to in Article 33(3).

1.   Member States shall ensure that the building owners, tenants and managers can have direct access to their building systems’ data. Upon their consent, the access or data shall be made available to a third party, subject to the existing applicable rules and agreements. Member States shall facilitate the full interoperability of services and of data exchange within the Union in accordance with paragraph 5.

For the purposes of this Directive, building systems’ data shall include at least all readily available data related to the energy performance of building elements, the energy performance of building services, the projected lifespan of the heating systems, where available, building automation and control systems, meters, measuring and control devices and recharging points for e-mobility and be linked, where available, to the digital building logbook.

2.   When laying down the rules regarding the management and exchange of data, taking into account the international standards and management format to data exchange, Member States or, where a Member State has so provided, the designated competent authorities, shall comply with the applicable Union law. The rules on the access and any charges shall not constitute a barrier or create discrimination for third parties to access building systems’ data.

3.   No additional costs shall be charged to the building owner, tenant or manager for access to their data or for a request to make their data available to a third party subject to the existing applicable rules and agreements. Member States shall be responsible for setting the relevant charges for access to data by other eligible parties such as financial institutions, aggregators, energy suppliers, energy services providers and national statistical institutes or other national authorities responsible for the development, production and dissemination of European statistics. Member States or, where applicable, the designated competent authorities, shall ensure that any charges imposed by regulated entities that provide data services are reasonable and duly justified. Member States shall incentivise the sharing of the relevant building systems’ data.