3. The top-level management and personnel responsible for carrying out the relevant tasks of the competent authorities for data intermediation services and the competent authorities for the registration of data altruism organisations shall not be the designer, manufacturer, supplier, installer, purchaser, owner, user or maintainer of the services which they evaluate, nor the authorised representative of any of those parties. This shall not preclude the use of evaluated services that are necessary for the operations of the competent authority for data intermediation services and the competent authority for the registration of data altruism organisations or the use of such services for personal purposes.