(102)The introduction of harmonised AML/CFT requirements across the Union, including with regard to group-wide policies and procedures, information exchange and reliance allows obliged entities operating within a group to leverage to the maximum the systems in place within that group in situations concerning the same customers. Those rules permit not only consistent and efficient implementation of AML/CFT rules across the group but also benefit from economies of scale at group level, for example by making it possible for obliged entities within the group to rely on the outcomes of processes adopted by other obliged entities within the group to comply with their customer identification and verification requirements.