The absence of clear rules at Union level governing the award of concession contracts gives rise to legal uncertainty and to obstacles to the free provision of services and causes distortions in the functioning of the internal market. As a result, economic operators, in particular small and medium-sized enterprises (SMEs), are being deprived of their rights within the internal market and miss out on important business opportunities, while public authorities may not find the best use of public money so that Union citizens benefit from quality services at best prices.