(2) de love og administrative bestemmelser, der gælder i medlemsstaterne for forhold, der vedrører sikkerhed, beskyttelse af sundheden samt ydeevne, karakteristika og godkendelsesprocedurer for medicinsk udstyr til in vitro-diagnostik er forskellige; sådanne forskelle skaber hindringer for samhandelen, og behovet for at fastsætte harmoniserede regler er blevet bekræftet i en sammenlignende undersøgelse af de nationale lovgivninger, som Kommissionen har gennemført;
(2) Whereas the content and scope of the laws, regulations and administrative provisions in force in the Member States with regard to the safety, health protection and performance, characteristics and authorisation procedures for in vitro diagnostic medical devices are different; whereas the existence of such disparities creates barriers to trade, and whereas the need to establish harmonised rules has been confirmed by a comparative survey of national legislations carried out on behalf of the Commission;