It is proposed to which Register of protection of data it corresponds to make the inscription of the files of the corporations of public law of associative basis. It is concluded, in the moment of formulating the consultation, that it is necessary to l’exercici of public authorities, subjected to the control of the Catalan Agency, to differentiate the relative files from the relatives to other non public activities, subjected to the control of the Spanish Agency. Regarding the creation of the public file, disposal of general character will be necessary.