(10)To ensure that competent authorities have the necessary information to assess compliance with the active account requirement laid down in Article 7a of Regulation (EU) No 648/2012, counterparties should calculate their activities and risk exposures in the categories of derivatives concerned and provide their competent authority with aggregated data on those categories, including a breakdown by CCP. That report should also contain information enabling the competent authority to assess how the counterparties meet the operational conditions and the representativeness obligation of the active account requirement, including the number of transactions cleared in the active accounts of the counterparties and the subcategories selected.