39As regards, finally, the provisions which make the organisation of trade fairs subject to the involvement of bodies made up of operators already in the territory concerned or representatives of such operators for the purposes of recognition and approval of the organiser and granting public financing to the latter, it must be observed that the requirement of approval or official recognition constitutes a restriction on the freedom to provide services or freedom of establishment. Similarly, and for the reasons given by the Advocate General in point 165 of his Opinion, an adverse effect of that kind may derive from provisions requiring the involvement of bodies made up of competing operators already present in the territory concerned.