Table 102 of the Guidelines specifies that GLEIF database should be used to determine the access rights of the relevant members of the ESCB, including the ECB in carrying out its tasks within a single supervisory mechanism, when applying the filtering for the fields 2.144 ‘Reference entity’, 1.4 ‘Counterparty 1 (Reporting counterparty’, 1.9 ‘Counterparty 2’, 1.15 ‘Broker ID’ and 1.16 ‘Clearing member’. Should the authorities in question have also access to the derivatives involving subsidiaries of the relevant entities and, if so, how the access rights should be determined?