(7)Closed end funds constitute an asset class which is not explicitly referred to as an eligible asset for a UCITS under Directive 85/611/EEC. However, the units of closed end funds are often treated as transferable securities and their admission to trading on a regulated market often gives grounds for such a treatment. It is therefore necessary to provide market participants and competent authorities with certainty as to whether units of closed end funds are covered by the definition of transferable securities. National competent authorities could work together through the CESR to develop common approaches as regards the practical, day-to-day application of the criteria applicable to closed end funds, notably in respect of minimum core standards in relation to corporate governance mechanisms.