13.The information from the posting declarations shall be saved in the IMI repository for the purpose of checks for a period of 24 months.A Member State may allow the competent authority to provide national social partners by other means than IMI with relevant information available in IMI to the extent necessary for the purpose of checking compliance with posting rules and in accordance with national law and practices, provided that:
(a)the information relates to a posting to the territory of the Member State concerned;
(b)the information is used exclusively for the purpose of enforcing the posting rules; and