'In order to encourage the use of eco-labelled products, the Commission and other institutions of the Community, as well as other public authorities at national level should, without prejudice to Community law, set an example when specifying their requirements for products.' ###>Il est inutile de rédiger un alinéa qui reprend l'article 39, paragraphe 1, aux termes duquel «La libre circulation des travailleurs est assurée à l'intérieur de la Communauté».