(9)In order to include the full range of practical experience and operational expertise regarding the supervision of CCPs, the CCP Supervisory Committee should be composed of a Chair, independent members, and the competent authorities of Member States with an authorised CCP. Where the CCP Supervisory Committee convenes in relation to authorised CCPs, central banks of issue of the Union currencies of the financial instruments cleared by those CCPs should be able to, on a voluntary basis, participate in the CCP Supervisory Committee in relation to the areas of Union-wide assessments of the resilience of CCPs to adverse market developments and relevant market developments, to facilitate access to information that could be relevant for carrying out their tasks. Where the CCP Supervisory Committee convenes in relation to third-country CCPs, central banks of issue of all Union currencies of the financial instruments cleared or to be cleared by the respective third-country CCP should be able to, on a voluntary basis, participate in the CCP Supervisory Committee for preparation of decisions in relation to third-country CCPs that are systemically important or likely to become systemically important for the financial stability of the Union or of one or more of its Member States (Tier 2 CCPs). Central banks of issue should be non-voting members of the CCP Supervisory Committee. The Chair of the CCP Supervisory Committee should be able to invite members of colleges as observers to ensure that the views of other relevant authorities are taken into account by the CCP Supervisory Committee.