(113)Supervisors from all Member States in which undertakings of the group are established should be involved in group supervision through a college of supervisors (the College). They should all have access to information available with other supervisory authorities within the College and they should be involved in decision-making actively and on an on-going basis. Cooperation between the authorities responsible for the supervision of insurance and reinsurance undertakings as well as between those authorities and the authorities responsible for the supervision of undertakings active in other financial sectors should be established.