5. Member States shall, where necessary and in any event at least every four years, review and, where appropriate, update the list of identified critical entities referred to in paragraph 3. Where those updates lead to the identification of additional critical entities, paragraphs 3 and 4 shall apply to those additional critical entities. In addition, Member States shall ensure that entities that are no longer identified as critical entities following any such update are notified in due time of that fact and the fact that they are no longer subject to the obligations under Chapter III from the date of receipt of that notification.