Bristen på gemensamma bestämmelser har lett till olika tillvägagångssätt och system inom gemenskapen, vilket har fått till följd att olika medlemsstater har varit olika strikta vid ackreditering. ###>The lack of common rules for that activity has resulted in different approaches and differing systems throughout the Community, with the result that the degree of rigour applied in the performance of accreditation has varied between Member States.