Indeed, under the Spanish national law system the cassation appeal in favour of law (‘recurso de casación en interés de ley’) has an extraordinary and subsidiary character which aims exclusively to unifying legal doctrine and, therefore, cannot have an effect on the matter referred to in the appeal (i.e. for the case at hand, it does not have the power to annul the rulings and decisions on the tax exemptions).
L'article 22 de la loi postale de 1998 et l'article 22, paragraphe 5, de la loi postale de 2010 prévoient que l'État peut imposer certaines obligations aux prestataires du service universel désignés dans le cadre des procédures électorales.