(10)To provide for an appropriate level of expertise and accountability, the Chair and the independent members of the CCP Supervisory Committee should be appointed by ESMA's Board of Supervisors (‘the Board of Supervisors’) on the basis of merit, knowledge of clearing, post-trading, prudential supervision, and financial matters, as well as experience relevant to the supervision and regulation of CCPs, following an open selection procedure organised and managed by the Board of Supervisors, assisted by the Commission, which should respect the principle of gender balance. Before the appointment of the Chair and the independent members of the CCP Supervisory Committee, and up to one month after their selection by the Board of Supervisors, the European Parliament should, after having heard the persons selected, approve or reject their designation. Only selected candidates approved by the European Parliament may be appointed by the Board of Supervisors.