5. Operators referred to in paragraph 4 shall keep records of the quantity and type of halons added and of ozone-depleting substances listed in Annex I recovered during maintenance or servicing and final disposal of the equipment or systems referred to in that paragraph. They shall also keep records of other relevant information, including the identification of the undertaking which performed leak checks, the maintenance or servicing, as well as the dates and results of the leak checks carried out. Those records shall be kept for at least 5 years and shall be made available, upon request, to the competent authority of the Member State concerned or to the Commission.