renouvellement d'une convention collective

CONT: Le Service fédéral de médiation et de conciliation [...] est chargé de favoriser l'établissement de relations harmonieuses entre les syndicats et les employeurs en offrant son aide dans le cadre de la négociation et du renouvellement des conventions collectives [...]

OBS: The Federal Mediation and Conciliation Service ... is responsible for fostering harmonious relations between trade unions and employers by assisting them in the negotiation of collective agreements and their renewal ...