Article 44

Qualified electronic registered delivery services shall meet the following requirements: (a) they are provided by one or more qualified trust service provider(s); (b) they ensure with a high level of confidence the identification of the sender; (c) they ensure the identification of the addressee before the delivery of the data; (d) the sending and receiving of data is secured by an advanced electronic signature or an advanced electronic seal of a qualified trust service provider in such a manner as to preclude the possibility of the data being changed undetectably; (e) any change of the data needed for the purpose of sending or receiving the data is clearly indicated to the sender and addressee of the data; (f) the date and time of sending, receiving and any change of data are indicated by a qualified electronic time stamp. In the event of the data being transferred between two or more qualified trust service providers, the requirements in points (a) to (f) shall apply to all the qualified trust service providers.

Compliance with the requirements laid down in paragraph 1 shall be presumed where the process for sending and receiving data complies with the standards, specifications and procedures referred to in paragraph 2.

By 21 May 2025 , the Commission shall, by means of implementing acts, establish a list of reference standards and, where necessary, establish specifications and procedures for processes for sending and receiving data. Those implementing acts shall be adopted in accordance with the examination procedure referred to in Article 48(2).

Providers of qualified electronic registered delivery services may agree on interoperability between qualified electronic registered delivery services which they provide. Such interoperability framework shall comply with the requirements laid down in paragraph 1 and such compliance shall be confirmed by a conformity assessment body.

The Commission may, by means of implementing acts, establish a list of reference standards and, where necessary, establish specifications and procedures for the interoperability framework referred to in paragraph 2a of this Article. The technical specifications and content of standards shall be cost-effective and proportionate. The implementing acts shall be adopted in accordance with the examination procedure referred to in Article 48(2).