Article 17 — Register

1. By 17 December 2029, Member States shall, in accordance with paragraph 2, set up and maintain a register of potentially contaminated sites and contaminated sites as established in accordance with this Chapter. 2. The register shall contain the data and information set out in Annex VI, except data and information the disclosure of which would adversely affect public security or national defence. 3. Member States shall manage or supervise the register and ensure that it is regularly reviewed and updated. 4. Member States shall make public, free of charge, the register and the data and information referred to in paragraphs 1 and 2 of this Article. Disclosure of any data and information may be refused or restricted by the competent authority where the conditions laid down in Article 4 of Directive 2003/4/EC are fulfilled. The register shall be made available in the form of an online georeferenced spatial database.