It is also necessary to take into account Council Directive 94/57/EC of 22 November 1994 on common rules and standards for ship inspection and survey organisations and for the relevant activities of maritime administrations ( 5 ),) , in order to define the recognised organisations for the purpose of this Regulation, and Council Directive 98/18/EC of 17 March 1998 on safety rules and standards for passenger ships ( 6 ),) , for the purpose of establishing the scope of application of this Regulation as regards passenger ships engaged on domestic voyages.